Operation and Installation Manual TR7750 VE

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Jotron AS| TR7750: Operators handbook  Page ii Standards

The equipment to the following directives:

European Directive 552/2004 (SES) amended by 1265/2007 (8.33 kHz channel spacing) European Directive 1999/5/EC (R&TTE)

The equipment is tested to the following product standards:

EMC: EN 301489-1, EN301489-22, IC RSS141 issue 1, FCC part 15 and part 87

IEC 60950-1

Health and Safety: EN60950, CSA-C22.2 60950

Radio specifications: EN300676 (AM), EN301842-1 (VDL mode 2)

For an updated list of approvals and statements of conformity, these are available on:

www.jotron.com

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Jotron AS| TR7750: Operators handbook  Page iii

List of abbreviations and definitions

100Base-T

100Mbit/s physical Ethernet adapter to interface to twisted pair (copper wire) LAN. RJ45 connector is used and range is 100m.

ACARS

Aircraft Communications Addressing and Reporting System(ACARS), is a digital data link system for transmission of short, relatively simple messages between aircraft and ground stations via radio or satellite. AF Audio frequency Alarm Refer to section 9.1 Alert Refer to section 9.2 ARC MkII

Audio Remote Control unit (ARC MkII), is a Jotron manufactured remote unit for operating up to 1 channel in main/standby configuration (2 transceivers).

BITE

Built In Test Equipment bps

Bits per second. Cat5 Cable

Category 5 cable is a twisted pair high signal integrity cable type often referred to as Cat5 or Cat-5. Most Category-5 cables are unshielded, relying on the twisted pair design for noise rejection. Category 5 has been superseded by the Category 5e specification. This type of cable is used in structured cabling for computer networks such as Ethernet and ATM, and is also used to carry many other signals such as telephony and video.

CMS

Control and Management System, usually a IP-based network to monitor and control radios and accessories

DRC

Data Remote Control unit, is a Jotron manufactured remote unit for changing frequency on the radios that are connected to an ARC MkII (1channel). The DRC can set frequency and store/recall preset frequencies.

DSP

Digital Signal Processor is a specialized microprocessor designed specifically for digital signal processing.

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Jotron AS| TR7750: Operators handbook  Page iv E&M (4W E&M)

E&M is a type of supervisory line signalling that uses DC signals on separate leads, called the "E" lead and "M" lead, traditionally used in the telecommunications industry between telephone switches. The “E” lead is normally used to signal PTT to the radio and the “M” lead is used to signal squelch back to the voice control system.

A “4W E&M” consists of a total of 8 wires, 2W for audio in each direction, 2W for PTT signalling and 2W for squelch signalling.

ETSI

European Telecommunication Standardisation Institute Ethernet

A family of standards for computer networking technologies for local area networks (LAN). The standards cover physical connection, addressing and data transfer and are covered in IEEE 802.3. ICAO

International Civil Aviation Organization IEC

International Electro-technical Commission. IETF

The Internet Engineering Task Force (IETF) develops and promotes Internet standards, cooperating closely with the W3C and ISO/IEC standards bodies and dealing in particular with standards of the TCP/IP and Internet protocol suite.

IF

In communications and electronic engineering, an intermediate frequency (IF) is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called heterodyning, resulting in a signal at the difference or beat frequency. Intermediate frequencies are used in super heterodyne radio receivers, in which an incoming signal is shifted to an IF for amplification before final detection is done.

IP

The Internet Protocol (IP) is the principal communications protocol used for relaying datagram (packets) across and internetwork using the Internet Protocol Suite. Responsible for routing packets across network boundaries, it is the primary protocol that establishes the Internet.

LAN

Local Area Network MIB

Management Information Base is a virtual database used for managing the objects (parameters) in a communications network. Most often associated with the Simple Network Management Protocol (SNMP). The MIB database is hierarchical (tree-structured). The software that performs the navigation in the MIB database is a MIB browser. The MIB database is Jotron proprietary and contains descriptions and definitions for all parameters in the radio. The MIB database is updated each time a new radio parameter is added or changed.

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Jotron AS| TR7750: Operators handbook  Page v MDF KRONE connector

KRONE LSA-PLUS (or simply KRONE) is an insulation-displacement connector for communication signals. With a dedicated tool, connections can be made without soldering, screwing or insulation removal. 1 KRONE connector holds 10 pair or 20 signal wires and bay be mounted on brackets for cross-wiring.

ORC

Operators Remote Control unit, is a Jotron manufactured remote unit used to recall preset frequencies on the radios that are connected to an ARC MkII (1channel).

PA

Power Amplifier PSU

Power Supply Unit. Separate unit to power the equipment. PTT

Push To Talk RACS

Remote access and control system for remote control and supervision of radio systems. The software provides the user with full access to all monitoring and control parameters on all radios on all sites connected via LAN.

RF

Radio Frequency RSSI

Received Signal Strength Indicator is a measurement of the power present or level of a received radio signal.

RTP

Real-time Transport Protocol defines a standardized packet format for delivering audio(VoIP) and video over IP networks.

SDR

Software-Defined Radio is a system where components that traditionally have been implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) now are implemented by means of software on an embedded computing devices, i.e. a Digital Signal Processor (DSP).

SIP

Session Initiation Protocol is an IETF-defined signalling protocol, widely used for controlling

multimedia communication sessions such as voice and video calls over the Internet Protocol (IP). The protocol can be used for creating, modifying and terminating two-party (unicast) or multiparty (multicast) communication sessions consisting of one or several media streams.

S/N

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Jotron AS| TR7750: Operators handbook  Page vi SNMP

Simple Network Management Protocol is a UDP-based network protocol. It is used mostly in network management systems to monitor and control network connected devices like the Jotron radios. SNMP is a component of the Internet Protocol Suite as defined by the Internet Engineering Task Force (IETF). It consists of a set of standards for network management, including an application layer protocol, a database schema, and a set of data objects.

SNMP exposes management data in the form of variables on the managed systems, which describe the system configuration. These variables can then be queried (and sometimes set) by managing applications like a MIB browser or the Jotron proprietary Radio Controller Client.

TCP

Transmission Control Protocol provides reliable, ordered delivery of a stream of bytes from a program on one computer to another program on another computer or device supporting the protocol.

TCXO

Temperature Compensated Crystal Oscillator. UDP

User Datagram Protocol is one of the core members of the Internet Protocol Suite, the set of network protocols used for the Internet. With UDP, computer applications can send messages, in this case referred to as datagram’s, to other hosts on an Internet Protocol (IP) network without requiring prior communications to set up special transmission channels or data paths.

VSWR

Voltage Standing Wave Ratio

VCO

Voltage-controlled oscillator is an electronic oscillator designed to be controlled in oscillation frequency by a voltage input

VCS

Voice Communications System VCCS

Voice Communication and Control System VOGAD

Voice Operated Gain-Adjusting Device, is a type of automatic gain control for microphone/TX line amplification. It is used in radio transmitters to ensure correct modulation and to prevent over modulation.

VoIP

Voice over IP (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the intranet/Internet or other packet-switched networks.

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Jotron AS| TR7750: Operators handbook  Page vii VDL mode 2

The VHF Data Link or VHF Digital Link (VDL) is a means of sending information between aircraft and ground stations. Aeronautical VHF data links use the band 117.975 - 137 MHz assigned by the International Telecommunication Union (ITU) to Aeronautical Mobile Route Services.

VDL Mode 2 is the only mode being implemented operationally to support Controller Pilot Data Link Communications CPDLC. The physical (RF) link of the VDL mode 2 consist of radios that communicate with a bit rate of 31500 b/s using differential 8 phase shift keying (D8PSK) modulation and carrier sense multiple access (CSMA) as the access method to the RF link.

VME

VHF management entity is a control unit used in a VDL system to control the VDL radio during transmission and reception of messages.

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Jotron AS| TR7750: Operators handbook  Page viii

Amendment Record

NO INIT DATE CHAPTERS VERSION REASON FOR CHANGE

1 OH 31.01.08 All _A New layout and text

2 OH 16.09.08 All

B

New version, includes changes up to SW release 2.05

New part number for the manual. 3 OH 11.11.08 2.1, 3.1.6, 3.2.5, 3.2.6,

3.2.7, 3.2.8, 3.3.5,

3.4.4, 3.4.5, 3.4.6 C

Information regarding frequency stability, hardware key and protection of I/O lines added

4 OH 10.11.09 3.4.5 _{D beta} Pin 8 Aux 2 is N/C 5 SHS/

OH

25.11.10 All E Major revision due to new manual standard. Supports SW release up to RA: 3.0x, TA: 3.0x

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

The information in this book has been carefully checked and is believed to be accurate. However, no responsibility is assumed for inaccuracies.

Jotron AS reserves the right to make changes without further notice to any products or modules described herein to improve reliability, function or design. Jotron AS does not assume any liability arising out of the application or use of the described product.

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Jotron AS| TR7750: Operators handbook  Page ix

SAFETY INSTRUCTIONS

This equipment contains CMOS integrated circuits. Observe handling precautions to avoid static discharges which may damage these devices.

Some RF semiconductor devices used in this equipment may contain Beryllium Oxide. If inhaled, dust from this oxide can be toxic. No danger will arise from normal handling but no attempt should be made to tamper with these devices. On no account must these transistors be destroyed or discarded with industrial or domestic waste, but should be returned to the manufacturer for subsequent disposal or to a suitable destination facility that can safely handle the electronic waste.

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Jotron AS| TR7750: Operators handbook  Page x

AMENDMENT RECORD ... VIII SAFETY INSTRUCTIONS ... IX TABLE OF CONTENTS ... X 1 INTRODUCTION ... 1-1 1.1 DESIGN ... 1-1 1.2 MODELS COVERED BY THIS MANUAL ... 1-1 1.3 OPTIONS (MUST BE ORDERED SEPARATELY) ... 1-2 1.4 LAYOUT OF THE TRANSCEIVER ... 1-2 1.5 APPLICATIONS ... 1-2 2 TECHNICAL SPECIFICATIONS ... 2-1 2.1 GENERAL SPECIFICATION,TR-7750 ... 2-1 2.2 TRANSMITTER UNITS,TA-7650,TA-7625,TA-7610 ... 2-2 2.3 POWER SUPPLY UNIT,PSU-7002 ... 2-2 2.4 RECEIVER UNIT,RA-7203 ... 2-3 3 FUNCTIONAL DESCRIPTION ... 3-1 3.1 FRONT PANEL CONTROLS,TRANSMITTER UNIT ... 3-1 3.1.1 Display ... 3-1 3.1.2 Scroll/Select switch and Navigation buttons A, B and C ... 3-1 3.1.3 PTT button ... 3-1 3.1.4 ON/OFF button ... 3-2 3.1.5 LED Indicators -TX ... 3-2 3.1.6 Mic/Headset connector - TX ... 3-3 3.2 TRANSMITTER, REAR CONNECTIONS ... 3-4 3.2.1 Antenna connector (50 ohm N-type) ... 3-4 3.2.2 Receiver ant. Connector (50 ohm BNC) ... 3-4 3.2.3 DC input connector (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ... 3-4 3.2.4 I/O signals – general information ... 3-5 3.2.5 LAN connector - TX (RJ45) ... 3-5 3.2.6 AUX1 CONNECTOR - TX (RJ45) ... 3-6 3.2.7 AUX2 connector - TX (RJ45) ... 3-6 3.2.8 REM connector - TX (RJ45) ... 3-7 3.2.9 Rx connector - TX (RJ45) ... 3-8 3.3 FRONT PANEL CONTROLS,RECEIVER UNIT ... 3-9 3.3.1 Display - RX ... 3-9 3.3.2 Scroll/Select switch and Navigation buttons A, B and C - RX ... 3-9 3.3.3 ON/OFF button - RX ... 3-9 3.3.4 LED Indicators -RX ... 3-10 3.3.5 Headset connector - RX ... 3-10 3.4 RECEIVER, REAR CONNECTIONS ... 3-11 3.4.1 Antenna connector - RX (50 ohm N-type) ... 3-11 3.4.2 DC input connector - RX (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ... 3-11 3.4.3 AC Input connector - RX (IEC 60320 - C14) ... 3-12 3.4.4 LAN connector - RX (RJ45) ... 3-12 3.4.5 AUX1 CONNECTOR- RX (RJ45) ... 3-13 3.4.6 AUX2 connector - RX (RJ45)... 3-13 3.4.7 REM connector - RX (RJ45) ... 3-14

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Jotron AS| TR7750: Operators handbook  Page xi 3.5 PSU-7002,POWER SUPPLY UNIT, FRONT-VIEW ... 3-15

3.5.1 LED Indicators - PSU ... 3-15 3.6 POWER SUPPLY UNIT REAR CONNECTORS. ... 3-16 3.6.1 DC input connector – PSU (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715) ... 3-16 3.6.2 D C output connector – PSU (Amphenol MS 3106A 12S3P)(Jotron P/N: 93697) ... 3-16 3.6.3 AC Input connector - PSU (IEC 60320 - C14) ... 3-17 4 INSTALLATION ... 4-1 4.1 INTRODUCTION ... 4-1 4.2 INITIAL INSPECTION ... 4-1 4.3 INSTALLATION INTO EQUIPMENT CABINET ... 4-2 4.4 ANTENNA CONNECTORS ... 4-3 4.5 AC AND DC CONNECTORS ... 4-3 4.6 REMOTE SIGNALS ... 4-4 4.6.1 Transceiver cable – Transceiver operation ... 4-4 4.6.1.1 Transceiver cable- pin out ... 4-5 4.6.1.2 Menu parameters, transmitter - receiver interconnection ... 4-6 4.6.2 Audio in/out and Line loop keying ... 4-7 4.6.2.1 Menu parameters, Monitor output ... 4-7 4.6.2.2 Menu parameters, Line input -TX ... 4-8 4.6.2.3 Menu parameters, Line output - RX ... 4-8 4.6.3 Other key signals ... 4-9 4.6.3.1 Menu parameters, Key source -transmitter ... 4-9 4.6.4 Squelch and AGC signals, receiver unit ... 4-10 4.6.4.1 Menu parameters, Squelch output -receiver ... 4-11 4.6.5 Alarm and Select signals, transmitter and receiver ... 4-12 4.6.5.1 Menu parameters, Alarm and Select -Receiver ... 4-13 4.6.6 RX BUSY, KEY OUT and TX LOW POWER (GAS ALARM) – (Transmitter unit) ... 4-14

4.6.6.1 Menu parameters, RX BUSY, KEY OUT and TX LOW POWER (GAS ALARM) 4-15

4.7 APPLICATIONS ... 4-16 4.7.1 Transceiver, Local operation ... 4-16 4.7.1.1 Setup procedure ... 4-16 4.7.2 Transceiver, 2 wire remote ... 4-16 4.7.2.1 Setup procedure ... 4-17 4.7.3 Transceiver, 4 wire remote ... 4-17 4.7.3.1 Setup procedure ... 4-18 4.7.4 Transmitter, Main/Standby ... 4-19 4.7.4.1 Setup procedure ... 4-20 4.7.5 Receiver, Main/Standby ... 4-21 4.7.5.1 Setup procedure ... 4-21 4.7.6 AM data operation (ACARS) – Option: AM MSK ... 4-22 4.7.7 VDL mode 2 data operation (part of a VDL Ground Station) ... 4-22 4.7.7.1 Setup procedure: Transceiver, VDL mode 2 operation ... 4-23 4.7.7.2 Menu parameters: Transmitter, VDL mode 2, Config. menu... 4-24 4.7.7.3 Menu parameters: Transmitter, VDL mode 2, Interface menu ... 4-24 4.7.7.4 Menu parameters: Receiver, VDL mode 2, Config. menu ... 4-25 4.7.7.5 Menu parameters: Receiver, VDL mode 2, Interface menu ... 4-25 5 REMOTE SYSTEMS USING IP ... 5-26 5.1 INTRODUCTION ... 5-26 5.1.1 SNMP (Simple Network Management Protocol) ... 5-26

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Jotron AS| TR7750: Operators handbook  Page xii 5.1.2 RTP (Real Time Protocol) ... 5-27 5.1.3 SIP (Session Initialization Protocol) ... 5-27 5.1.4 HTTP (Hypertext Transfer Protocol) ... 5-27 5.1.5 Remote control protocol using TCP ... 5-27 5.1.6 VDL mode 2 protocol using TCP ... 5-27 5.1.7 DHCP (Dynamic Host Configuration Protocol) ... 5-27 5.2 APPLICATIONS USING THE IP INTERFACE ... 5-28 5.2.1 Introduction – IP Configuration and planning ... 5-28 5.2.2 Controlling a transceiver using a Radio Remote Control (RRC) ... 5-28 5.2.3 IP configuration plan ... 5-29 5.2.3.1 VoIP system with separate antennas for main and standby ... 5-30 5.2.3.2 Setup procedure, VoIP using RRC (RTP and SIP) ... 5-30 5.2.4 Remote Access and Control System over LAN (RACS). ... 5-31 5.2.4.1 System layout ... 5-31 5.2.4.2 Setup procedure ... 5-32 6 ADAPTOR KIT ... 5-33 6.1 MAIN DISTRIBUTION FRAME (MDFKRONE) ... 5-33 6.1.1 Transmitter standard wiring ... 5-34 Receiver standard wiring ... 5-35 6.1.2 Transceiver wiring, Main/Standby, 4Wire E&M, ARC, DRC/ORC and ACU ... 5-36 6.1.2.1 System layout ARC, DRC with two antennas (main and standby) ... 5-37 6.1.2.2 System layout ARC, DRC/ORC with one antenna + ACU ... 5-37 6.1.2.3 Detailed wiring diagram ARC, DRC/ORC + ACU using MDF Krone ... 5-38 6.1.2.4 Setup procedure – Control using ARC, DRC/ORC, ACU ... 5-39 6.1.3 Transceiver wiring, Main/Standby, 4Wire E&M, VCCS and ACU ... 5-40 6.1.3.1 System layout ... 5-40 Detailed wiring diagram transceiver + ACU using MDF Krone ... 5-41 6.1.3.2 Setup procedure, main/standby transceiver connected to an ACU + VCCS ... 5-42 6.1.4 Transceiver, Main / Standby, 4Wire +E&M, APM, ARC and DRC ... 5-43 6.1.4.1 System Layout ... 5-44 6.1.4.1 Detailed wiring diagram transceiver + APM using MDF Krone ... 5-44 6.1.4.2 Setup procedure ... 5-45 6.2 LEGACY WIRING ADAPTOR BOARD –P/N82715(OPTIONAL) ... 5-46 6.2.1 Configuration of the interface board ... 5-46 6.2.2 Radio Configuration ... 5-47 6.2.3 Limitations ... 5-47 6.2.3.1 Receiver: ... 5-47 7 ADVANCED RADIO FUNCTIONS AND RECOMMENDED SETTINGS ... 6-1 7.1 INTRODUCTION ... 6-1 7.2 TRANSMITTER ... 6-1 7.2.1 VOGAD function and use -TX ... 6-1 7.2.2 Line mute level ... 6-2 7.2.3 Frequency Offset (Option) ... 6-2 7.2.4 In-band PTT signalling (Option in-band) ... 6-2 7.3 RECEIVER ... 6-3 7.3.1 Squelch system ... 6-3 7.3.1.1 Squelch: Recommended settings ... 6-3 7.3.1.2 Details regarding the squelch system to use ... 6-4 7.3.1.3 Details regarding the functionality of the Signal/Noise (S/N) Squelch ... 6-4 7.3.1.4 Details regarding the Level squelch (Carrier override) ... 6-5

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Jotron AS| TR7750: Operators handbook  Page xiii 7.3.2 In-band Squelch signalling (Option) ... 6-6 8 OPERATING INSTRUCTIONS ... 7-1 8.1 INTRODUCTION ... 7-1 8.2 TRANSMITTER ... 7-3 8.2.1 User menu – Transmitter (Restricted access level) ... 7-3 8.2.2 User menu – Transmitter (Default access level) ... 7-4 8.2.3 Settings, information and configuration menus – Transmitter ... 7-5 8.2.3.1 Radio control group - TX ... 7-6 8.2.3.2 TX config group - TX... 7-7 8.2.3.3 Interface config group - TX ... 7-8 8.2.3.4 Bite system group - TX ... 7-9 8.2.3.5 System info group - TX ... 7-9 8.2.4 Parameter details – Transmitter ... 7-10 8.2.4.1 Radio control group - TX ... 7-10 8.2.4.2 TX config group - TX... 7-11 8.2.4.3 Interface config group - TX ... 7-14 8.2.4.4 Bite system group - TX ... 7-17 8.2.4.5 System info group -TX ... 7-17 8.3 RECEIVER ... 7-19 8.3.1 User menu – receiver (Restricted access level) ... 7-19 8.3.2 User menu – Receiver (Default access level) ... 7-20 8.3.3 Settings, information and configuration menus – Receiver ... 7-21 8.3.3.1 Radio control group - RX ... 7-22 8.3.3.2 RX config group - RX ... 7-23 8.3.3.3 Interface config group - RX ... 7-24 8.3.3.4 Bite system group - RX ... 7-25 8.3.3.5 System info group - RX ... 7-25 8.3.4 Parameter details – Receiver ... 7-26 8.3.4.1 Radio control group - RX ... 7-26 8.3.4.2 RX config group - RX ... 7-27 8.3.4.3 Interface config group - RX ... 7-30 8.3.4.4 Bite system group - RX ... 7-32 8.3.4.5 System info group - RX ... 7-34 9 FAILURES AND CORRECTIVE ACTIONS ... 8-35 9.1 ALARMS ... 8-35 9.2 ALERTS ... 8-35 9.3 SYSTEM COMPONENTS ... 8-35 9.4 TRANSMITTER ERROR CONDITIONS ... 8-35 9.5 RECEIVER ERROR CONDITIONS ... 8-40 10 MAINTENANCE... 9-1 10.1 PREVENTIVE MAINTENANCE ... 9-1 10.2 PC UTILITIES ... 9-1 10.2.1 Radio Controller client ... 9-1 10.2.2 MIB-browser ... 9-2 10.2.3 IP-Ping ... 9-2

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Jotron AS| TR7750: Operators handbook  Page xiv 11 DIMENSION AND WEIGHT ... 10-1

11.1 TRANSMITTER UNIT ... 10-1 11.2 POWER SUPPLY ... 10-2 11.3 RECEIVER UNIT ... 10-3 11.4 TRANSCEIVER (SUB RACK) ... 10-4 11.5 PACKAGING ... 10-4 12 SUPPORTING DOCUMENTS ... 11-5

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Jotron AS| TR7750: Operators handbook  0BIntroduction Page 1-1

1 Introduction

1.1 Design

The Jotron Receiver and Transmitter are “State of the art” fully solid state design based on a

Software-Defined Radio (SDR) concept with a Digital Signal Processor (DSP) as the core element. The DSP provide all signal handling between the IF signal format and the analogue audio signals and vice versa. This includes filtering, de-modulation, modulation signal leveling and more. The processor also handles all the control signaling within the RA and TA units, and externally. The units are fully

software defined and easily upgradable with improved or new functionality. The units can be controlled either locally or remotely via several communication protocols including Ethernet (LAN). The RF frequencies are synthesizer controlled.

1.2 Models covered by this manual

The following models / variants are covered by this operator’s manual

Model P/N Contain units Output Frequency range Modes

TR-7750, Transceiver (VHF) X-84700 RA-7203, TA-7650, PSU-7002 50 Watts 118-137 (156) MHz AM, (D8PSK) TR-7725, Transceiver (VHF) X-84700 RA-7203, TA-7625, PSU-7002 25 Watts 118-137 (156) MHz AM, (D8PSK) TR-7710, Transceiver (VHF) X-84700 RA-7203, TA-7610, PSU-7002 10 Watts 118-137 (156) MHz AM, (D8PSK) TA-7650, Transmitter (VHF) X-84000 TA-7650, PSU-7002 50 Watts 118-137 (156) MHz AM, (D8PSK) TA-7625, Transmitter (VHF) X-84000 TA-7625, PSU-7002 25 Watts 118-137 (156) MHz AM, (D8PSK) TA-7610, Transmitter (VHF) X-84000 TA-7610, PSU-7002 10 Watts 118-137 (156) MHz AM, (D8PSK) RA-7203, Receiver (VHF) X-84500 RA-7203 N/A 118-137 (156) MHz AM, (D8PSK)

Table 1-1, Radio models

Throughout this manual, transmitter unit, TX, TA-7650 or TA-76xx refers to any of the three different power variants of the transmitter (TA-7650, TA-7625 or TA-7610) unless otherwise noted. The term transceiver, TR, TR-7750 or TR-77xx refers to any variant of the transceiver unless specifically noted in the text, and the term receiver, RX and RA-7203 is used for the receiver unit (RA-7203).

The operating procedures for the different RX/TX models are equal, except the maximum rated output power.

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Jotron AS| TR7750: Operators handbook  0BIntroduction Page 1-2

1.3 Options (must be ordered separately)

Optionally the Transmitter can include the following functionality, depending on configuration. Optional functions Description

Extended freq. 118-144 MHz

Extended operating frequency to 144 MHz (Option 144 MHz) Extended freq.

118-156 MHz

Extended operating frequency to 156 MHz (Option 156 MHz)

Carrier Offset CLIMAX offset of the transmitter frequency (ICAO standard) (Option offset) In-band signalling Audio line tone keying of the transmitter and/or squelch signalling from the

receiver. (Option In-band)

VoIP Voice over IP audio and keying (Option VoIP) FM modulation Frequency modulation (Option FM)

AM MSK ACARS data link standard (Option AMMSK)

VDL mode 2 The transceiver implements the media access control (MAC) and physical layer of the VDL mode 2 network. Communication to the VME is done using TCP/IP. (Option VDL 2)

1.4 Layout of the transceiver

The receiver unit, RA-7203 operates as an independent receiver. The transmitter unit TA-7650 operates as an independent transmitter, but requires the power supply unit, PSU-7002 for operation on AC power. The receiver and transmitter units may be placed in entirely different locations or together and may also be configured as a transceiver with local operation from the front panel.

Figure 1.1, Complete Transceiver, RA-7203, TA-7650 and PSU-7002

1.5 Applications

The transmitter TA-7650 and the receiver RA-7203 can be used either as a standalone transmitter / receiver for ground to air voice or data communication, or combined as a transceiver with RX muting and common audio control via the interface of the Transmitter unit.

The transmitter / receiver can be operated in the following modes:

• Locally as a Transceiver, with microphone and headphone connected to the front panel connector.

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Jotron AS| TR7750: Operators handbook  0BIntroduction Page 1-3 • As a Transceiver, connected to a VCS (Voice Control System) using 600-ohm analogue lines

for audio, together with keying in form of in-band tones, external voltages, ground or phantom keying.

• As a Transceiver, connected to a VCS (Voice Control System) using Ethernet (LAN/WAN) for VoIP audio and keying.

• Connected to a VME (VHF ground station) system as a data modem, using VDL mode 2. • Connected to a VDL (VHF ground station) system using 600-ohm analogue lines for audio

containing AM-MSK data from an external ACARS modem.

• In addition the transmitter/receiver has a large range of options for remote control using Ethernet, serial lines or front panel controls.

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Jotron AS| TR7750: Operators handbook  1BTechnical SPECIFICATIONS Page 2-1

2 Technical SPECIFICATIONS

2.1 General specification, TR-7750

Applicable Standards

AM, AM-MSK ICAO annex 10, ETSI EN 300676 VDL mode 2 ETSI EN-301841 - 1

Voice over IP EUROCAE ED-137 (RTP / SIP)

EMC ETSI EN-301489 part 1/22, FCC rule 15B and 87, IC RSS-141 Shock Transport: IEC-721-3-2, Class 2M3

Vibration Transport: IEC-68-2-32, Class 2M3. IEC-68-2-6

General, all units AM 25 kHz AM 8.33 kHz AM MSK D8PSK (VDL2) Frequency range 118-137 MHz (118-144MHz or 118-156 MHz optional)

Frequency accuracy (stability) < ±1.0 ppm@ -20°C to +55 °C, <±0.3 ppm@ 0°C to +40 °C (environmental temperature)

RF Modes 6K80A3EJN 5K00A3EJN 13K0A2D 14K0G1DE

Bit rate 2.4 kbit/s 31.5 kbit/s

Audio frequency response 300-3400 Hz 350-2500 Hz

Data ports RS232, RS485, 100BaseT(Ethernet/LAN)

Protocols Simple Network Management Protocol (SNMP v.2), TCP/IP remote control, RTP audio streaming, SIP streaming configuration, HTTP web interface, RS232, RS485; See Protocol description documents for additional information

BITE monitoring All relevant parameters for Transmitter and Receiver. Ref. BITE below.

Pre-set channels 99

RF impedance 50Ω, N-connector

Temperature range -20°C to +55°C (operating) -40°C to +70°C (storage) Humidity 95% @+40°C (non condensing)

AC operating voltage 85 to 264VAC, 47-63Hz

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2.2 Transmitter Units, TA-7650, TA-7625, TA-7610

Transmitter unit AM 25 kHz AM 8.33 kHz AM MSK D8PSK (VDL2) Output power Minimum 1W, Maximum 50, 25 or 10W, model dependent. Adjustable in 0.1 dB step. Max 25W Adjacent channel power >75 dBc >65 dBc >75 dBc >65 dBc

Modulation level up to 95%

Distortion < 5% @95% modulation

Line input 600Ω, -40 to +10dBm – adjustable sensitivity Monitor line output 600Ω, -46 to 0dBm (Depending on input level. Relative to RX in and TX monitor level) AGC (VOGAD) range -40 to +10 dBm on line input, threshold level is adjustable

Intermodulation protection >40 dB

Harmonic emission ≤ -90 dBc (-43 dBm @ 50W output) Spurious emission ≤ -110 dBc (-63 dBm @ 50W output)

Keying Time Attack time: <20ms, Release time: <5ms <0.5 ms Keying options Mic. connector. Remote: GND, +/- voltage, Line loop, SNMP, TCP/IP, RTP header

Signal/Noise (Hum and noise) >40 dB

Timeout 15 s. to 5 min in 1 s. steps

In-band keying User configurable tones: 2000-4000Hz in 1 Hz steps Carrier offset 2,3,4 or 5 2

Differential group delay <10µs

Power rise and release time <190 µs, <300µs

System constellation error EVM <3%

VSWR 1 : Infinity

Duty cycle 100% continuous operation @ambient below 40°C Power consumption <280VA

Heat dissipation <15W@Idle, <200W@50W output power

MTBF Calculated: 9 years (MIL-HDBK-217F), Actual: > 20 years MTTR <30 minutes at lowest replaceable unit

Dimension Transmitter unit 142mm(28TE)(W) * 230mm(D) * 128mm (H)

Weight 3.0 kg

2.3 Power Supply Unit, PSU-7002

Power supply unit

Supply voltage, AC 85 to 264VAC, 47-63Hz Output voltage +28 VDC regulated

DC input (backup power) 21.6 - 31.2VDC negative ground DC throughput When AC not present Max load 9A average, 18A peak

Heat dissipation <15W@Idle, <40W@50W TX output power

MTBF Specified: >10 years - Actual: >20 years MTTR <30 minutes at lowest replaceable unit

Dimension PSU unit 71mm (14TE)(W) * 303mm(D) * 128mm (H)

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2.4 Receiver Unit, RA-7203

Receiver unit AM 25 kHz AM 8.33 kHz AM MSK D8PSK (VDL2)

Sensitivity, AM@1µV/30% pd 12dB SINAD (CCITT) Sensitivity VDL (BER>10-3₎

< -103 dBm

Adjacent channel rejection

(Adjacent channel selectivity) >75dB >65dB >75dB >[email protected]

Intermodulation attenuation >79 dBc >-28 dBm

IF bandwidth +/- 11kHz +/- 3.5 kHz +/- 11 kHz +/- 11 kHz

Image frequency rejection >110 dB IF frequency rejection >110 dB

Squelch system Combination of RF level and Signal/Noise (digital coherent squelch) Squelch RF level -5 dBµV to +42 dBµV (-112 dBm to -65 dBm)

Squelch Signal/Noise 5 dB S/N to 20dB S/N @30% modulation

Squelch activation time <20ms

Squelch hysteresis Typical 2-3 dB

Audio AGC (AAGC) 30% - 90%, <1dB variation in output audio signal

Signal/Noise >40dB @40 dBuV (-67 dBm), 30% modulation AGC range -107dBm to +5dBm

AGC attack time <50ms <40ms

AGC decay time <200ms <50ms

Differential group delay <50µs

In-band squelch signal User configurable tones: 100-5000 Hz in 1 Hz steps (Squelch open, closed or both)

Line output 600Ω, -36 - +10dBm @90% modulation

Harmonic distortion <5% @90% AM (line output)

Cross modulation rejection >95dB @ 100 kHz frequency offset

Blocking/desensitisation >100dB @1MHz offset,>110 dB out of band signals Dynamic range >110dB

Spurious response rejection >96dB Permissible RF input level 5V EMF Power consumption <10VA Heat dissipation <10W

MTBF Calculated: 10.1 years/unit (MIL-HDBK-217F), Actual: > 20 years MTTR <30 minutes at lowest replaceable unit

Dimension Receiver unit 71mm (14TE)(W) * 230mm(D) * 128mm (H)

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Jotron AS| TR7750: Operators handbook  2BFunctional description Page 3-1

3 Functional description

3.1 Front Panel Controls, Transmitter unit

Navigation

button A Display

Navigation button B

Indicators:

OUT: Output power indicator SWR: High SWR indicator PTT button Scroll / Select Switch ON/OFF button Navigation button C Indicators:

LOW: Transmits in low power AL: Alarm active (red) REM: Remote ready (green) STBY: Standby (yellow)

Mic/Headset connector

Figure 3-1, Front view, transmitter unit, TA-7650/25/10

3.1.1 Display

The default display shows the most important operational parameters; Frequency and modulation. In addition, the display will show several menus, submenus and operational parameters when entering into the menu using Navigation button A.

3.1.2 Scroll/Select switch and Navigation buttons A, B and C

The navigation buttons, A, B and C, together with the Scroll/Select switch are used to navigate through the menus.

The Scroll/Select switch has three actions: It can be turned clockwise, counter-clockwise, or momentarily pressed.

In general the use of the navigation buttons are: A or Scroll/Select right: Increase a value (up) B or Scroll/Select left: Decrease a value (down) C or Scroll/Select press: Confirm or Enter.

The function of the navigation buttons will change depending on previous actions. The display will indicate the function of each navigation button, by text or symbols.

3.1.3 PTT button

This button is used to immediately key the transmitter for test/measurement purposes. The PTT button is connected in parallel with the PTT keying available via the microphone connector. The PTT button may be enabled/disabled depending on the key configuration of the radio.

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3.1.4 ON/OFF button

Press and hold button (for app. 2s) to switch the unit ON or OFF.

3.1.5 LED Indicators -TX

LOW (yellow): The transmitter transmits in low power, either caused by an internal failure (SWR, Temperature, or low input voltage) or set by the user. The low power level is adjustable.

AL (red): Indicates that an alarm is present in the transmitter unit. Details of the alarm will be shown on the display.

REM (green): This LED has multiple functions. The REMOTE indicator will be lit with a constant green colour when the transmitter is “ready” for remote operation. Ready means that the keying options has been set to include keying from an external source, and that the voice input has been set to an external source (600 ohm line input) or VoIP.

In addition the REMOTE indicator will flash yellow each time the unit is communicating on either of the remote interfaces (RS232, RS485, Ethernet). STBY (yellow): The transmitter is kept in standby, either by user input, an external signal to the remote interface or because an alarm condition has been detected, and the transmitter is set up as a MAIN transmitter. In standby the transmitter will not be able to send, even if a valid key signal is input to the unit.

OUT (yellow): Indicate that the transmitter is keyed and power is being generated, detected at the output of the power amplifier.

SWR (red): Indicate that the SWR on the antenna is above the threshold value (app. 3:1). The transmitter will reduce the output power to the predefined low power level in order to protect the output stage.

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3.1.6 Mic/Headset connector - TX

Table 3-1, Mic/Headset connector, transmitter, pin out

The Mic/Headset connector is used for multiple purposes. • Microphone/Headset connector:

Connect the microphone to the Mic input/Mic GND, the +12VDC can be used to power the microphone or a microphone amplifier.

The Headset output (referenced to GND) contains the local side tone generated from the demodulated signal on the output of the transmitter when the transmitter is keyed, or the received audio if the transmitter is connected to a receiver using the T/R bus available on the rear panels.

• RS232 serial line

The RS232 serial line can be used to control radio parameters from an external unit. • Hardware key to change access level:

In order to change the access level (see chapter 8.2.4.3 for details) a hardware key must be inserted into the microphone/headset connector before entering in to the menu system. The hardware key consists of a RJ45 connector where pin no. 4 and 5 (RS232 RX and TX) are connected together.

Mic/Headset connector

Name PIN Purpose

Mic input 1 Sensitivity 2.5mV nominal. Mic GND 2 Microphone ground

Headset 3 Headset output, contains side-tone and/or received _{audio when used together with a receiver (RA7203)}

RS232 4 RS232 TX

RS232 5 RS232 RX

PTT 6 PTT input. Connect to GND (p.8) to key

+12VDC 7

Source is 12 VDC with a 3.2k ohm internal

resistance. Maximum current consumption of the external mic is 3 mA.

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3.2 Transmitter, rear connections

Figure 3-2, Rear view, transmitter unit, TA-7650/25/10.

3.2.1 Antenna connector (50 ohm N-type)

Interface to the antenna cable for the transmitter or the transceiver when used together with a receiver unit

3.2.2 Receiver ant. Connector (50 ohm BNC)

BNC-Type antenna output – 50 ohm. This connecor is connected to the antenna switch (pin switch or relay) internally in the transmitter unit and can be connected directly to the antenna input of a co-located receiver unit (RA7203).

Note!

The VHF radio uses a PIN switch, this type of antenna switch can only be used to switch the antenna between a receiver and a transmitter. The output from standby transmitter can not be switched through this antenna switch. For this application a separate Antenna Changeover Unit (ACU) is required.

3.2.3 DC input connector (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715)

Figure 3-3, Transmitter DC input connector, rear view

Connector for DC supply (21.6 - 31.2 VDC).

Connected to the power supply, PSU-7002, or to an external DC supply. A is the positive (+) connection and B is the negative (-) connection points.

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3.2.4 I/O signals – general information

Many of the I/O signals on the radio units are polarity dependent. The relays used are semiconductor type relays. Optocouplers are used when practically possible to isolate the radio equipment from external equipment. This prevents failures caused by varying ground conditions to influence the safe operation of the equipment.

The convention used throughout this book is to add a “P” after the positive side of the signal and an “N” after the negative.

All input and output signals are overvoltage protected by PTC resistor and will not be damaged for input signals up to +/- 48V.

Wherever possible the standard pairs used on an ethernet connection are used for the signals. This allows standard ethernet Cat5e or better cables to be used as patch cables with the advantage of getting the signals as twisted pairs within the cable. The standard pairs on a Cat5e cable are found on: Pin 1/2, 3/6, 4/5 and 7/8.

3.2.5 LAN connector - TX (RJ45)

This connector contains the Ethernet bus and is normally connected to a switch/hub. It can also be connected directly to a computer, using a twisted pair Ethernet cable. The pin-out of the connector is the standard pin-out used in most IP networks.

LAN interface connector

Name PIN Purpose

LAN_TXP 1 Tx data LAN_TXN 2 Tx data LAN_RXP 3 Rx data LAN_RXN 6 Rx data LAN_D3P 4 Optional LAN_D3N 5 Optional LAN_D4P 7 Optional LAN_D4N 8 Optional

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3.2.6 AUX1 CONNECTOR - TX (RJ45)

This connector is normally connected to equipment used for remote control /remote supervision of the transmitter.

AUX1 connector, transmitter AUX

Name PIN Purpose Dir Level Max

Volt. [V]

Max Curr [mA]

ALARM_P 1 Alarm out-relay (NO) O

48 120

ALARM_N 2 Alarm out-relay (NO) O

Select_in_P 3 Select in, Optocouplers input I ₄₈ ₃₂ Select_in_N 6 Select in, Optocouplers input I

RS232_S 4 RS232 Transmit data I/O ± 12

RS232_R 5 RS232 Receive data I/O ± 12

+12V 7 +12VDC output to external equipment

O _12V ₃₀₀

GND 8 Common ground N/A

Table 3-3, AUX1 connector, transmitter, pin out

3.2.7 AUX2 connector - TX (RJ45)

This connector is normally connected to equipment used for remote control / remote supervision of the transmitter.

AUX2 connector, transmitter

Volt. [V] Max Curr [mA] KEY_OUT_P 1 Closed=Transmitting, optocoupler output O 15 50 KEY_OUT_N 2 Closed=Transmitting, optocoupler output O MONITOR_P 3 Monitor output to tape

recorder

O _{-46 to} 0 dBm

15Vpp

MONITOR_N 6 Monitor output to tape recorder

O TXLOW_P 4 Applying a voltage > 5VDC

between pin 4 and 5 forces the transmitter into low power

I +5 to +48V ref p5 _{± 50} TXLOW_N 5 Applying a voltage > 5VDC

between pin 4 and 5 forces the transmitter into low power

I -5 to -48V ref p4 TXKEY_P 7 Applying a voltage > 5VDC

between pin 7 and 8 will key the transmitter

I +5 to +48V ref p8 _{± 50} TXKEY_N 8 Applying a voltage > 5VDC

between pin 7 and 8 will key the transmitter

I -5 to -48V ref p7

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3.2.8 REM connector - TX (RJ45)

This connector is normally connected to equipment used for remote control / remote supervision of the transmitter. It contains basic interfacing signals used for remote control, and will in many cases be the only connector used.

When the Transmitter is connected together with a Receiver, using a standard Cat5E Transceiver patch cable between the units (RX: REM to TX: RX connector), the Transmitter REM connector will contain the basic functionality to control both the transmitter and the receiver.

With this cable installed, the receiver line output will be connected to the transmitter line input to give a 2W interface to the transceiver. In addition there will be a squelch output signal available on the transmitter REM connector.

REM connector, transmitter – Remote control of the transceiver

Volt. [V] Max Curr [mA] RS485_Z 1 RS485 (-) I/O ±5V RS485_Y 2 RS485(+) I/O ±5V

LINE_P 3 Balanced line input/output to

TA/RA, 600 ohm I/O

-40 to +10

dBm ± 48 (Key input) LINE_N 6 Balanced line input/output to

TA/RA, 600 ohm.

(For unbalanced line input: Connect to GND, p8)

I/O

-40 to +10 dBm TX_KEY_G 4 Grounding this pin will key

transmitter I GND 5

RX_BUSY_OUT 5 RX Busy indicator output – Open collector

(squelch indicator)

O 15 10

ALARM 7 Low=Alarm (TA or TA/RA) O 15 50

GND 8 Common ground -

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3.2.9 Rx connector - TX (RJ45)

This connector is normally connected to the REM connector on a co-located receiver when operated as a transceiver.

When connected to a receiver, it will make functionality such as: • Common Rx/Tx 2 wire remote audio line interface

• Receiver audio in the local headset interface on the transmitter unit • Rx & Tx audio on the Tx monitor output

• Transceiver alarm signalling

• Receiver squelch information in the transmitter to be used on the transmitter interface or when operated as a VDL mode 2 radio

Rx connector, transmitter. Interface to RX (transceiver config)

Volt. [V] Max Curr [mA] RS485_Z 1 RS485 (-) I/O _±5V RS485_Y 2 RS485(+) I/O

LINE_P 3 Balanced line input from

Receiver unit, 600 ohm I -40 to ₊₁₀ dBm

± 48V LINE_N 6 Balanced line input from

Receiver unit, 600 ohm I TX_BUSY 4 TX Busy indicator output -

Open collector (Mute output)

O 5 10

RX_BUSY 5 RX Busy optocoupler-input

(Repeater key input) I 48 32

INT_ALARM 7 This internal alarm signal is a combined I/O signal that is connected to a co-located receiver for receiving alarm signalling from the receiver (for display on the transmitter and to signal alarm from the transmitter (for display on the receiver). Input or output Low=Alarm

I/O 48 1

GND 8 Common ground -

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3.3 Front Panel Controls, Receiver unit

Navigation button A Display Navigation button B Scroll / Select Switch ON/OFF button Sq / Navigation button C Indicators:

SQ: Squelch open (yellow) AL: Alarm active (red) REM: Remote ready (green) STBY: Standby (yellow)

Headset

connector Loudspeaker

Figure 3-4, Front view, receiver unit, RA-7203

3.3.1 Display - RX

The default display screen shows the most important operational parameters; Frequency and modulation. In addition, the display will show several menus, submenus and operational parameters when entering into the menu using Navigation button A.

The default display also indicate if the receiver operated on AC or DC power, by “AC” or “DC” in the upper part of the display.

3.3.2 Scroll/Select switch and Navigation buttons A, B and C - RX

The navigation buttons, A, B and C, together with the Scroll/Select switch are used to navigate through the menus.

The Scroll/Select switch has three actions: It can be turned clockwise, counter-clockwise, or momentarily pressed in.

In general the use of the navigation buttons are: A or Scroll/Select right: Increase a value (up) B or Scroll/Select left: Decrease a value (down) C or Scroll/Select press: Confirm or Enter.

The user interface will indicate which navigation button to use.

Navigation button C is dedicated to squelch ON/OFF button in the default view.

3.3.3 ON/OFF button - RX

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3.3.4 LED Indicators -RX

SQ (yellow): The receiver squelch is open (receiving audio) when lit.

AL (red): Indicates that an alarm is present in the receiver unit. Details of the alarm will be shown on the display.

REM (green): This LED has multiple functions. The REMOTE indicator will be lit with a constant green colour when the receiver is “ready” for remote operation. Ready means that the audio is output to an external source (600 ohm line input) or VoIP.

In addition the REMOTE indicator will flash yellow each time the unit is communicating on either of the remote interfaces (RS232, RS485, Ethernet). STBY (yellow): The receiver is kept in standby, either by user input, an external signal to the remote interface or because an alarm condition has been detected and the receiver is set up as a MAIN receiver. In standby the receiver will not output any audio on any audio interface.

3.3.5 Headset connector - RX

Headset connector

Volt. [V] Max Curr [mA] N/C 1 No connection - N/C 2 No connection -

Headset 3 Headset output contains received audio. O 1W N/C 6 No connection - RS232 4 RS232 TX O ±12V ±15 RS232 5 RS232 RX I ±12V ±15 +12VDC 7 +12 VDC to external amplifier (100mA max.) O +12V GND 8 Common ground - GND

Table 3-7, Headset connector, receiver, pin out

The Headset connector is used for multiple purposes. • Headset connector:

The Headset output (referenced to GND) contains the received audio. • RS232 serial line

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Jotron AS| TR7750: Operators handbook  2BFunctional description Page 3-11 • Hardware key to change access level:

In order to change the access level (see chapter 8.3.4.3 for details) a hardware key must be inserted into the microphone/headset connector before entering in to the menu system. The hardware key consists of a RJ45 connector where pin no. 4 and 5 (RS232 RX and TX) is connected together.

3.4 Receiver, rear connections

Figure 3-5, Rear view, receiver unit, RA-7203.

3.4.1 Antenna connector - RX (50 ohm N-type)

Connect directly to a receiver antenna, or to the receiver antenna connector (BNC) on the transmitter unit.

3.4.2 DC input connector - RX (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715)

Figure 3-6, Receiver DC input connector, rear view

Connector for DC supply (21.6 - 31.2 VDC).

Connect to an external DC supply to operate the unit on DC or as a backup supply if the main AC fails. A is the positive (+) connection and B is connected to ground or chassis (-).

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3.4.3 AC Input connector - RX (IEC 60320 - C14)

Figure 3.7, AC input connector

Input for external AC (male).

AC is input between A(N) and C(L). B is chassis ground. The voltage range is from 85 to 264 VAC, 47-63Hz. Note!

Although signal ground has the same potential as AC ground and DC minus (-), AC ground and DC (-) should not be used for signalling purpose.

3.4.4 LAN connector - RX (RJ45)

This connector contains the Ethernet bus and is normally connected to a nearby switch/hub. It can also be connected directly to a computer, using a twisted pair Ethernet cable.

LAN interface connector

Name PIN Purpose

LAN_TXP 1 Tx data LAN_TXN 2 Tx data LAN_RXP 3 Rx data LAN_D3P 4 Optional LAN_D3N 5 Optional LAN_RXN 6 Rx data LAN_D4P 7 Optional LAN_D4N 8 Optional

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3.4.5 AUX1 CONNECTOR- RX (RJ45)

This connector is normally connected to equipment used for remote control / remote supervision of the receiver.

AUX1 connector, receiver unit

Volt. [V]

Max Curr [mA]

ALARM_P 1 Alarm out-relay (NO) O

±48 120

ALARM_N 2 Alarm out-relay (NO) O

Select_in_P 3 Select in, optocoupler input I 1W

±48 32 Select_in_N 6 Select in, optocoupler input I ±12V

RS232_S 4 RS232 Transmit data O ±12V ± 15

RS232_R 5 RS232 Receive data I ±12V ± 15

+12V 7 +12VDC output to external

equipment (max 100mA) O +12V 12 100

GND 8 Common ground - GND

Table 3-9, AUX1 connector, receiver, pin out

3.4.6 AUX2 connector - RX (RJ45)

This connector is normally connected to equipment used for remote control / remote supervision of the transmitter.

AUX2 connector, receiver unit

Volt. [V]

Max Curr [mA] Squelch_out_P 1 Closed=Receiving (Sq open),

optocoupler output O

± 48 120 Squelch_out_N 2 Closed=Receiving (Sq open),

optocoupler output O

AGC_HILO_P 3 Hi/Lo output depending on signal strength, optocoupler output

O

+15 50 AGC_HILO_N 6 Hi/Lo output depending on

signal strength O

N/C 4 -

N/C 5 -

AGC_OUT 7 AGC analogue voltage output, depending on signal strength. Referred to GND

O 0-4V 5 1

N/C 8 GND - GND

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3.4.7 REM connector - RX (RJ45)

This connector is normally connected to a co-located transmitter unit (RX connector) when used in a transceiver configuration, or to other equipment used for remote control of the receiver.

When connected to a transmitter, via a transceiver cable, the connection gives “transceiver” functionality to the transmitter (Rx line and Squelch). The TX_BUSY and RX_BUSY signals are also used in VDL mode 2 configurations to signal that the transmitter or receiver is busy transferring data.

Interface to Remote equipment or a transmitter unit

Volt. [V] Max Curr [mA] RS485_Z 1 RS485 (-) I/O RS485_Y 2 RS485(+) I/O

LINE_P 3 Line output from Receiver

unit, 600 ohm I/O _{± 15}

LINE_N 6 Line output from Receiver

unit, 600 ohm O

TX_BUSY 4 TX Busy indicator input (Mute

input) I 48 32

RX_BUSY 5 RX Busy output O 5 1

INT_ALARM 7 Low=Alarm (Note: I/O – low input will also be recognized as an alarm (EXT))

I/O 5 1

GND 8 Common ground - GND

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3.5 PSU-7002, Power Supply Unit, front-view

Indicators:

AC: Operating on AC ON: ON (DC output)

Figure 3-8, PSU-7002, front view

3.5.1 LED Indicators - PSU

AC (yellow): Indicates that AC is present, and that the unit currently is operating on the main AC power supply.

ON (green): Indicates that the PSU is ON and supplies DC on its output.

The DC is either derived from the main AC input (shown by the AC indicator), or from the backup DC input (AC indicator dark).

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3.6 Power Supply Unit rear connectors.

Figure 3-9, Power supply unit - rear view

3.6.1 DC input connector – PSU (Amphenol MS 3106A 10SL4S)(Jotron P/N: 96715)

The DC input is connected to the DC backup supply (if available).

Input range is 21.6 - 31.2 VDC and current consumption is max 9A average when the transmitter operates with full rated power output (50W).

A is the positive (+) connection and B is connected to ground (-).

Figure 3-10, DC input connector, PSU

3.6.2 D C output connector – PSU (Amphenol MS 3106A 12S3P)(Jotron P/N: 93697)

The DC output connector is connected to the transmitter unit and contains the +28V DC supply for the transmitter. The DC is generated from the main AC input or the DC backup input.

Figure 3-11, DC output, PSU

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3.6.3 AC Input connector - PSU (IEC 60320 - C14)

Figure 3-12, AC input connector, PSU

Input for external AC (male).

AC is input between A(N) and C(L). B is chassis ground. The voltage range is from 85 to 264 VAC, 47-63Hz. Note!

Although signal ground has the same potential as AC ground and DC minus ), AC ground and DC (-) should not be used for signalling purpose.

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Jotron AS| TR7750: Operators handbook  3BInstallation Page 4-1

4 Installation

4.1 Introduction

The procedures for installing the radio units / transceiver are described in table 4.1 below. It is recommended that these procedures are completed in the order shown.

Procedure Ref. chapter

1 Initial inspection 4.2

2 Install equipment into 19” sub racks (equipment cabinet)

4.3

3 Connect chassis stud to system earth or cabinet Figure 3-2 (TX) Figure 3-5 (RX) Figure 3-9 (PSU)

4 Connect remote connectors as required 4.6

5 Connect antenna connectors 4.4

6 Connect DC supply (if required) 4.5

7 Connect AC supply (if required 4.5

Table 4-1, Installation procedures

4.2 Initial inspection

On receipt of the radio units, remove all transit packaging and check that there is no damage to the equipment. If damage is evident, contact Jotron immediately and retain the original transit

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4.3 Installation into equipment cabinet

The units may be installed into a standard 19” sub-rack with a height of 3U ( 1U= 44.45 mm). The sub-rack is divided into 84 TE units horizontally (1TE=5.08mm). The transmitter occupies 28 TE, the PSU occupies 14TE and the receiver unit occupies 14TE.

For a transceiver this leaves a free space of 28TE available for other equipment.

Figure 4-1 shows some examples for installation into 19” sub-rack. From top to bottom the figure shows: 6 receivers in one sub-rack, 2 transmitters with PSU in one sub-rack and 3 transmitters without PSU (operated on DC) in one sub-rack. Jotron suggests that more space is added for better heat dissipation, if possible.

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4.4 Antenna connectors

The antenna should be of good quality with regards to gain and VSWR to obtain maximum performance. Make sure that the VSWR on the antenna is low, and that the cable from the transmitter to the antenna is of good quality to avoid mismatch and unnecessary losses.

A cable loss of 1 dB is the same as reducing the power output of a 50W transmitter to less than 40W. Similarly, a cable loss of 2 dB is the same as reducing the output power to less than 32W.

In areas were thunderstorms and lightning is a problem, surge arrestors should be mounted where the antenna cables enters into the building. The arrestors should be of good quality and be capable of handling the output power of the transmitter.

The antenna output of the transmitter is an N-type antenna connector at the back of the transmitter. The second connector (BNC-type) is the output from the Tx antenna switch and can be used to connect to a receiver for T/R switching to a common antenna in Transceiver configuration. This output connector must NOT

4.5 AC and DC connectors

be used for TX main/standby switching.

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4.6 Remote signals

Several remote signals are available on the rear interfaces of the radio units. These signals can be grouped into: Audio signals, Key signals, Data interface signals and other signals.

Note, for all interface signals, RJ45 connectors are used. As far as practically possible, the pairs used on a standard Ethernet connection are used when a signal is input/output as a pair to the radio (e.g. audio lines). For interconnections between the transmitter and receiver, and for interconnection to a distribution panel with RJ45 connectors, standard Cat5E, Ethernet cable should be used. This is a good quality, screened cable, with 1 to 1 connections between the two connectors.

Below is an overview of the signals available and their primary use. Refer to chapter 3.2 and 3.4 for an overview of the different connectors.

4.6.1 Transceiver cable – Transceiver operation

When the Transmitter is wired together with a Receiver as a Transceiver, the Transmitter REM connector will also have the basic functionality for remotely controlling the receiver.

Transceiver wiring may ether be done by using a standard Cat5e computer cable with RJ45 connectors between the units (Rx-REM to Tx-RX connector) or via KRONE connection inter-wiring The Transceiver cable signals and pin out are as follows:

TX - REM/RX RX - REM PIN NAME DESCRIPTION Pin no Pin no

1 1 RS485_Z RS485 - serial communication 2 2 RS485_Y RS485 - serial communication

3 3 LINE_P RX Audio 600ohm balanced

4 4 TX BUSY TTL L=transmitting (RX pullup) 5 5 RX BUSY TTL L=receiving (TX pullup)

6 6 LINE_N RX Audio 600ohm balanced

7 7 ALARM Alarm (TTL) I/O TRX alarm

8 8 GND Ground CABLE 4 p ai rs R J45 C at 5E , F T P

Table 4-2, Transceiver, transmitter – receiver interconnections

When connecting the signals on the transmitter RX connector with the signals on the receivers REM connector, via the transceiver cable, the following functionality is added to the transmitter and receiver:

 The receiver audio line (p.3 and p.6) is input to the transmitter.

This makes receiver audio available in the transmitter headphone connector, allowing only one plug to be used for a combined headset/microphone.

In addition a 2 wire interface to the transmitters audio input line is possible for combined transmitter and receiver audio.

Finally, it enables monitoring of both the transmitted audio and the received audio via the monitor output line (AUX2, p.3 and p.6) on the transmitter.

 A RX Busy signal (p.5) is input to the transmitter from the receiver.

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Jotron AS| TR7750: Operators handbook  3BInstallation Page 4-5  A TX Busy signal (p.4) is output from the transmitter to the receiver.

This signal signals the receiver that the TX is busy (transmitting). This is used in VDL operation, and to mute the receiver while transmitting (see table below).

 A receiver alarm in/out is connected to the transmitter alarm in/out.

This enables the functionality that the complete transceiver (both receiver and transmitter unit) will enter into alarm state if one of the units fails. This is useful if the complete transceiver should be switched to a backup transceiver.

 The RS485 serial lines from both units are connected in parallel.

This is useful to have only one connection point for the RS485 on the transceiver for remote control.

RS485 serial bus is primarily used by the Data Remote Control unit (DRC) and Operators Remote Control unit (ORC) to remotely set/change frequency and other parameters, on the Receiver, Transmitter or Transceiver.

4.6.1.1 Transceiver cable- pin out

Standard Ethernet Cat5 patch cable (straight)

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Jotron AS| TR7750: Operators handbook  3BInstallation Page 4-6 4.6.1.2 Menu parameters, transmitter - receiver interconnection

Menu path: Interface config ► Parameter Details RS485 (TX and RX)

Bitrate See chapter 8.2.4.3 and 8.3.4.3 for details

RS485 (TX and RX)

Address See chapter 8.2.4.3 and 8.3.4.3 for details

RS485 (TX and RX)

Protocol See chapter 8.2.4.3 and 8.3.4.3 for details Menu path:

TX config ►

Parameter Details

Audio (TX)

Monitor output See chapter 8.2.4.2 for details Audio

(TX)

Line=> Head gain

See chapter 8.2.4.2 for details Menu path: RX config ► Parameter Details Audio (RX) Mute on transmit

See chapter 8.3.4.2 for details

Audio (RX)

Output source See chapter 8.3.4.2 for details

Audio (RX)

Line Output level

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4.6.2 Audio in/out and Line loop keying

Figure 4-3, Audio interfaces on the transmitter and receiver units

With reference to Figure 4-2, the following audio remote signals are available on the rear connectors:  Monitor out: Monitor signal, usually connected to a recording unit.

4.6.2.1 Menu parameters, Monitor output

Menu path Parameter Details

Audio (TX)

Monitor output See chapter 8.2.4.2 for details

Audio (TX)

Monitor level See chapter 8.2.4.2 for details

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Jotron AS| TR7750: Operators handbook  3BInstallation Page 4-8  Line input, transmitter: This is the transmitter audio line input. This signal is usually

connected to a VCS system or a remote control that uses a 600 ohm line interface. 4.6.2.2 Menu parameters, Line input -TX

Menu path: TX config ►

Parameter Details

Audio (TX)

Input source See chapter 8.2.4.2 for details

Audio (TX)

Line sensitivity See chapter 8.2.4.2 for details

Audio (TX)

Line

termination

Audio (TX)

Line mute level See chapter 8.2.4.2 for details

Keying (TX)

Source See chapter 8.2.4.2 for details

Keying (TX)

Loop key bias Line loop Keying.

Table 4-5, Settings associated with LINE_INPUT (TX-REM)

 Line output, receiver: This is the receiver audio line output. This signal is usually connected to the VCS system or a remote control that uses a 600 ohm line interface.

4.6.2.3 Menu parameters, Line output - RX Menu path:

RX config ►

Parameter Details Audio

(RX)

Output source _{See chapter 8.3.4.2 for details} Audio

(RX)

Line output level _{See chapter 8.3.4.2 for details}

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4.6.3 Other key signals

Figure 4-4, Key signals on the transmitter unit

In addition to the line loop keying, it is possible to key the transmitter, using several other hardware and software options.

 TX_KEY_G

This is a input on the transmitter REM connector, pin 4. This pin, if connected to GND, will key the transmitter.

 TXKEY_P, TXKEY_N

This is a differential input, on the transmitter AUX2 connector, pin 7 and 8. A DC voltage between 5 and 48V(+ or -) between the pins will key the transmitter.

Note also that this is a differential signal, not connected to any ground potential inside the transmitter, therefore the signal can be configured for both positive and negative voltage keying (see figure).

4.6.3.1 Menu parameters, Key source -transmitter Menu path:

TX config ►

Parameter Details Keying

(TX)

Source _{See chapter 8.2.4.2 for details} Table 4-7, Key Source settings

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4.6.4 Squelch and AGC signals, receiver unit

Figure 4-5, Squelch and AGC signals receiver unit

 RX_BUSY (REM, p.5)

Squelch output signal that is refered to GND.

This signal can be used to detect that the receiver is busy on a connected transmitter unit, on a remote control or any other units that can use this signal.

The signal function (Open or Closed on busy) can be configured.  SQUELCH (AUX2, p.1 and p.2)

This signal indicates that the squelch is activated / closed. The signal function (Open or Closed on busy) can be configured. The output is a solid state relay, rated for maximum 100V / 100mA.  AGC_HILO_P, AGC_HILO_N (AUX2, p.3 and p.6)

This signal indicates that a signal above approximately +40 dBuV is received.

This can be used to detect if the signal comes from a collocated transmitter operating on the same frequency (Closed) or a transmission from an aircraft (Open).

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Jotron AS| TR7750: Operators handbook  3BInstallation Page 4-11  AGC VOLTAGE (AUX2, p.7)

This is an analogue output 0-4V. The output voltage is 0V for an input of -111dBm and increases linearly with the input signal up to -80dBm where the voltage reach +4V. This signal may be used by a voting system to determine which receiver is receiving the strongest signal from an aircraft. Also called Best Signal Selection (BBS).

Figure 4-6, AGC output voltage vs. RF input signal

4.6.4.1 Menu parameters, Squelch output -receiver Menu path:

RX config ►

Parameter Range

Squelch (RX)

SqOut output _{See chapter 8.3.3.2 for details} Squelch

(RX)

RxBusy output _{See chapter 8.3.3.2 for details} Table 4-8, Squelch output configuration