Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID

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Installing the Loop Start Line

Board with Centrex Message

Waiting and Caller ID

Defining the Centrex Line Board

The FXCMW-08 and FXCMW-16 line boards provide eight and sixteen lines

respectively, with support for caller ID and message waiting services provided by the central office. Message Waiting messages are indicated by a flashing LED button. LCD speakerphones present a list of waiting messages as well as caller ID information. System software release 193 or later should be used with these boards. These boards are designed to be backward compatible. When used in systems with software prior to release 193, the FXCMW-08 and FXCMW-16 can operate as FXLST-08 and FXLST-16 respectively. In this mode, the new CMW and CID functionality will not be supported. As a part of the backward compatibility, the board will match itself to either FXLST or FXCMW board type when placed in a pre-configured system. For additional

information on this boards functionality, see GCA40-301.01, “General Description for Software Release 193”

Underwriters Laboratories Regulations

Per Underwriters Laboratories regulations, be aware of the following precautions when installing telephone equipment that is to be directly connected to the telephone

company network:

• Never install telephone wiring during a lightning storm.

• Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

• Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

• Use caution when installing or modifying telephone lines.

This manual has been developed by Comdial Corporation (the “Company”) and is intended for the use of its customers and service personnel. The information in this manual is subject to change without notice. While every effort has been made to eliminate errors, the Company disclaims liability for any difficulties arising from the interpretation of the information contained herein.

The information contained herein does not purport to cover all details or variations in equipment or to provide for every possible contingency to be met in connection with installation, operation, or maintenance. Should further information be desired, or should particular problems arise which are not covered sufficiently for the purchaser’s purposes, contact Comdial, Inside Sales Department, Sarasota, Florida 34232.

Printed in U.S.A. IMI89–350.02

05/02 Comdial®_{is a registered trademark of Comdial Corporation,Sarasota, FL.}

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Removing and Installing Circuit Boards

CAUTION

Circuit boards for the FX system are susceptible to damage caused by

electrostatic discharge, and you must keep this fact in mind as you handle the circuit boards. Refer to the Comdial publication IMI01-005, Handling Of Electrostatically Sensitive Components, for general information Specific handling precautions are also included in this installation instruction.

The FX system’s common equipment cabinet provides universal slots that will accept either line or station boards.

When removing or installing circuit boards in the cabinet, you must install a static discharge wrist strap on your bare wrist, and adjust it for a snug fit. Be sure that the strap is touching bare skin and is not isolated by clothing. Connect the wrist strap cord between the wrist strap and a AC or earth ground.

Unless a circuit board has a pre-charge port on its front panel, disconnect the AC power cord from the AC outlet and disconnect the cable between the cabinet and any external battery back-up assembly before you remove or install the circuit board. However, if the board does include a pre-charge port, you can connect a standard telephone handset cord between the pre-charge port on the circuit board and the pre-charge port on the power supply assembly (FXS) and remove or install the circuit board while the system is operating. On FXT systems, the pre-charge cord is pre-wired to the power supply and hangs between it and the circuit board cage.

Whenever you remove a circuit board from the cabinet, immediately place the board in a static protection bag while you still have your wrist strap in place and properly grounded.

Creating A Static Safe Work Area

When servicing the common equipment cabinet at the installation location, it is a good practice to place a conductive mat in front of the cabinet area and ground the mat. (The third wire ground of the AC power line is an

acceptable grounding point.) The grounded mat provides a safe discharge path for static.

When removing the common equipment cabinet from the installation location for servicing, it is a good practice to prepare a static-safe work area on which to place the cabinet.

You should wear a static-discharge wrist strip every time you handle electronic circuit boards either at the cabinet location or at your work area.

2 – Removing and Installing Circuit Boards

IMI89-350 - Beta Release- Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID Typical Earth Ground Static Wrist Strap ESD Protective Mat ESD Protective Mat ESD Protective Worksurface Static 2

Common Point Ground

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Removing and Installing Line Boards

Preparing for Installation

1. Normally you should disconnect the AC power cord from the AC outlet and disconnect the optional battery back-up assembly from the power supply;

however, when necessary, you can remove or install a line board in an operating system. If you must do this, connect one end of a standard telephone handset coil cord to the precharge port on the power supply (on FXS systems—On FXT

systems, the pre-charge cord is pre-wired to the power supply and hangs between it and the circuit board cage). During step 5, you will connect the other end of this coil cord to the precharge jack on the line board.

2. Install your static discharge wrist strap on your bare wrist; adjust it for a snug fit. Be sure that the strap is touching bare skin and is not isolated by clothing. Connect the wrist strap cord between the wrist strap and an AC or earth ground NOTE: With the common equipment in the installed position, the ground lug on the side of the cabinet is an

appropriate grounding point since it should have a heavy ground wire connected between it and a good earth ground.

3. Each new line board is supplied in a static protection bag for safe keeping. When you are ready to install the line board, remove it from its static protection bag. Conversely, when you remove a line board from the cabinet, immediately place it in a static protection bag.

Performing the Installation

4. Locate the proper board slot—the loop start line boards connect to any universal slot.

5. If you are removing or installing the line board in an operating system, connect the free end of the precharge cord that you installed in step 1 to the precharge jack on the line board.

6. If you are removing line boards from the cabinet, remove the retaining hardware, pull the boards toward you until their board edge connectors separate from the cabinet’s backplane connection, and slide the boards free of the cabinet.

7. To install line boards, orient them with the left and right guides in cabinet board cage. and press the boards firmly until their board edge connectors properly mate with the connection on the cabinet’s backplane.

8. Make a final inspection to ensure that all line boards are oriented correctly and mated properly.

9. Install and tighten the supplied screws to secure the installed boards to the board cage.

10. Each line board includes a ferrite collar. Snap the ferrite collar around the cable to provide protection against radio frequency interference.

Removing and Installing Circuit Boards – 3 Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID -Beta

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4 – Removing and Installing Circuit Boards

IMI89-350 -Beta Release- Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID Universal Slots UNIV 30 UNIV 29 UNIV 28 UNIV 27 UNIV 26 UNIV 25 UNIV 24 Expansion Interface UNIV 23 twoboxes.cdr Universal Slots UNIV 22 UNIV 21 UNIV 20 UNIV 19 UNIV 18 UNIV 17 UNIV 16 UNIV 15 UNIV 14 UNIV 13 UNIV 12 UNIV 11 UNIV 10 UNIV 9 Expansion Interface UNIV 8 FXS Main Cabinet

FXS First Expansion Cabinet FXS Second Expansion Cabinet Universal Slots UNIV 6 UNIV 5 UNIV 4 UNIV 3 UNIV 2 UNIV 1 CPU Board Slot Universal/Auxiliary Slot 7

(Used for Line or Station Boards)

(slot 7 will not function properly with circuit boards that require a synchronization (sync) card for operation. Typical boards that fall into this catagory include T1 and E1 boards)

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Removing and Installing Circuit Boards – 5 IMI89-350 - Beta Release- Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID

Universal Slots (used for line or station boards) UNIV 15 UNIV 14 UNIV 13 UNIV 12 UNIV 11 UNIV 10 UNIV 9 UNIV 7 UNIV 6 UNIV 5 UNIV 4 UNIV 3 UNIV 2 UNIV 1 CPU Board Slot UNIV 8

(Slot 8 will not function properly with circuit boards that require a synchronization (sync) card for operation. Typical boards that fall

into this category include T1 and E1 boards.) FXTExpandedMain Cabinet

FXTExpansionCabinet Universal Slots UNIV 30 UNIV 29 UNIV 28 UNIV 27 UNIV 26 UNIV 25 UNIV 24 UNIV 23 UNIV 22 UNIV 21 UNIV 20 UNIV 19 UNIV 18 UNIV 17 Expansion Interface UNIV 16 Unexpanded Slots 1-7 Expanded Slots 9-15 Twoboxesa.cdr

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Understanding the FX System Logical Numbering

Detailing Physical/Logical Board Locations

The FX system uses two distinctions for station and CO line locations: the physical location and the logical location.

The physical location corresponds to the order of the universal slots in the system; these physical slot locations never change. There are physical slot locations in the main and expansion cabinets, and no matter what board you install in the first

universal slot, that slot is always physical slot one. The physical slot numbers number as shown on the following chart. Installers need to know the physical location of the boards in order to properly wire the CO lines and stations.

Main Cabinet–slot assignments First Expansion Cabinet–slot assignments Second Expansion Cabinet-slot assignments Communications Server Location

Universal slot 22 Not available for use

Universal slot 15 Universal slot 30

Universal slot 6 Universal slot 14 Universal slot 29

Services/CPU board Expansion Interface Expansion Interface

Auxiliary (slot 7) Universal slot 8 Universal slot 23

NOTE: You can place any station board or any CO line board in any universal slot with no restrictions (except T1 and E1 boards excluded from slot 7—see applicable publications for details) .

The logical location of a station or a CO line corresponds to its relationship to the other stations or CO lines the system and is not dependent upon the board’s location in the cabinet.

For example, if you have installed your first station board into the fifth slot, the system still refers to the first station on that board as logical station one (station one always defaults with intercom 1001).

6 – Understanding the FX System Logical Numbering

IMI89-350 - Beta Release- Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID

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How Automatic Configuration Works

Because there are no dedicated station or CO line ports, the system uses an automatic configuration method to number the CO lines and stations. When you master clear the system, it automatically searches for all installed CO line and station boards in the main and expansion cabinets. Once the system has identified the board types and locations, it automatically numbers the ports on every installed board (see the section titled, How The System Renumbers Logical Ports, for more information on

renumbering).

How the System Renumbers Logical Ports

The automatic renumbering configuration, which renumbers the logical ports, begins at the bottom universal slot and proceeds upward. When the configuration is finished, the CO line and station ports are numbered logically from slot UNV1 through slot UNV30.

Adding Boards without Renumbering

When you install additional boards or relocate existing boards after the system is in service and add them through VMMI programming, the logical numbers of the stations or CO lines on the added board continue from the last assigned logical number.

For example, if your last assigned station number was 16, the next station number will be 17, regardless of the board’s physical slot.

After you remove and delete a board through programming, that board’s logical port is available for reassignment. So an added or relocated board would then take the logical port numbers from the removed board and not from the end of the logical sequence.

For example, if you had 64 stations and were to remove a station board that had held logical stations 1–16, the next station board that you installed would occupy logical station ports 1–16 and not ports 65–80. If you were to remove a 12-port board and replace it with a 16-port board, the first 12 ports on the new board would replace the original 12 logical port numbers, and the remaining four ports would begin with the last assigned logical port. So using our same scenario, the new 16-port board would have logical ports 1–12 and 65–68.

Remember, when you master clear the system, it automatically searches for all installed CO line and station boards in the main and expansion cabinets. Once the system has identified the board types and locations, it automatically numbers the ports on every installed board.

Understanding the FX System Logical Numbering – 7 IMI89-350 - Beta Release- Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID

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Connecting The Telephone Lines

Connections between the telephone company line termination (typically a type 66M-xx connector block) and the loop start line boards are via 25-pair cables that

connect to 50-pin male

connectors on the line boards. If spare conductors exist in the cables that you run between the line boards and the 66M-xx connector blocks, it is a good practice to connect the spare conductors to earth ground. Doing this may help prevent the spare connectors from inducing radio frequency and/or AC interference into the system.

Remember, you should snap a ferrite collar around each cable to provide protection against radio frequency interference.

NOTE: If the system operation includes the direct inward station access (DISA) feature on a particular line, callers who use DISA to access a line group and place calls (line to line calls) may experience low audio levels on their calls due to the normal resistance of CO lines. A low audio level is usually only noticeable on long line loops. If signal loss is a problem at your site, try adding a line amplifier (repeater) in the DISA line. Comdial does not recommend DISA for use on loop-start lines without disconnect supervision. While DISA will function, Comdial will not be liable for its performance under any condition where disconnect supervision is not provided.

8 – Connecting The Telephone Lines

IMI89-350 - Beta Release- Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID Telephone Company Line Termination or Demarcation Point System Line Termination Type 66M-xx Connector Block

Primary Protection Device (Gas Discharge Tubes or Similar Devices)

Line Board 50-Pin Connector

Route the line cable to the system termination and punch down the wiring on the 66M-xx connector block. Snap a ferrite block around each cable.

line.cdr

Making the Line Connections

Ferrite Collar Male 50 Conne 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 CLIP TERMINALS { { { { { { { { { { Connector Block Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Line 7 Line 8 Line 2 Line 1 Loop Start Loop Start Loop Start Loop Start Loop Start Loop Start Loop Start Loop Start Auxiliary Equipment Interface Power Fail Station

mwline1.cdr

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Detailing Centrex MW Board Line Connections

25-Pair Connections _ConnectionsWire-Pair _Line

Number Line Type

Wire Color Pair Pin_No. _Term.Clip _NameWire

White-Blue 1 26 1 Tip 1 Loop Start

Blue-White 1 2 Ring

White-Orange 2 27 3 Tip 2 Loop Start

Orange-White 2 4 Ring

White-Green 3 28 5 Tip 3 Loop Start

Green-White 3 6 Ring

White-Brown 4 29 7 Tip 4 Loop Start

Brown-White 4 8 Ring

White-Slate 5 30 9 Tip 5 Loop Start

Slate-White 5 10 Ring

Red-Blue 6 31 11 Tip 6 Loop Start

Blue-Red 6 12 Ring

Red-Orange 7 32 13 Tip 7 Loop Start

Orange-Red 7 14 Ring

Red-Green 8 33 15 Tip 8 Loop Start

Green-Red 8 16 Ring

Red-Brown 9 34 17 Tip 9 Loop Start

Brown-Red 9 18 Ring

Red-Slate 10 35 19 Tip 10 Loop Start

Slate-Red 10 20 Ring

Black-Blue 11 36 21 Tip 11 Loop Start

Blue-Black 11 22 Ring

Black-Orange 12 37 23 Tip 12 Loop Start

Orange-Black 12 24 Ring

Black-Green 13 38 25 Tip 13 Loop Start

Green-Black 13 26 Ring

Black-Brown 14 39 27 Tip 14 Loop Start

Brown-Black 14 28 Ring

Black-Slate 15 40 29 Tip 15 Loop Start

Slate-Black 15 30 Ring

Yellow-Blue 16 41 31 Tip 16 Loop Start

Blue-Yellow 16 32 Ring Yellow-Orange 17 42 33 No Connection Orange-Yellow 17 34 Yellow-Green 18 43 35 Green-Yellow 18 36 Yellow-Brown 19 44 37 Brown-Yellow 19 38 Yellow-Slate 20 45 39 Slate-Yellow 20 40 Violet-Blue 21 46 41 Blue-Violet 21 42 Violet-Orange 22 47 43 Orange-Violet 22 44 Violet-Green 23 48 45 Green-Violet 23 46

Violet-Brown 24 49 47 Tip 2 Auxiliary Equipment

Interface (Busy Lead Detect)

Brown-Violet 24 48 Ring

Violet-Slate 25 50 49 Tip 1 Power Fail Station

Slate-Violet 25 50 Ring

Connecting The Telephone Lines – 9 Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID-Beta

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Making a Power Failure Station Connection

The line board provides a tip and ring pair connected to line 1 as an emergency power failure circuit. This power fail circuit is active during a commercial AC power failure if an external battery

assembly is not installed to provide battery back-up power to the

system. Connect an industry standard, single-line telephone to the power failure jack and use it to provide basic communications capability until the AC power to the system is restored. Pair 25 (pin numbers 50 and 25, clip terminals 49 and 50) on the line board

connector jack provides the power failure connection.

Making an Auxiliary

Equipment Interface Connection

(Busy Lead Detection)

When needed, connect an

industry standard non-electronic telephone device such as a FAX machine, an industry-standard telephone, or a data device, such as a modem, on a line ahead of the common equipment. The system will detect an off-hook condition in the connected device and turn on the status light for the line at the system telephones to indicate that the line is busy. Each line board makes one auxiliary equipment connection available for use. This connection is at Pair 24 (pin numbers 49 and 24, clip terminals 47 and 48) and is associated with line 2 of that line board.

10 – Making a Power Failure Station Connection

IMI89-350 - Beta Release- Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Power Failure Terminals on Line Board Connection Block Pair 25,

Pins 50 and 25, Clip Terminals 49 and 50 Typical Industry Standard

Non-electronic Telephone (Power Failure Interface)

pwr_fail.cdr

Making a Power Failure Station Connection

37 38 39 40 41 42 43 44 45 46 47 48 49 50

Line Board Connection Block Pair 24,

Pins 49 and 24, Clip Terminals 47 and 48

a-lead.cdr

Industry-Standard Telephone Device Such As:

FAX, Modem, Model 2500 Telephone, etc. (No A-Lead Control Required)

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Programming For Centrex Message Waiting

To completely enable the Centrex message waiting feature, you must take either one of the following VMMI programming actions:

1. Assign up to four station extension numbers to the Centrex message waiting line. 2. Assign the message waiting line to stations as direct line appearance;

or enable direct or delayed ringing for the message waiting line; or assign a message waiting line to the stations as a prime line. With either choice one or two, you must also take the following additional programming action to fully enable the Centrex Message Waiting feature.

• Station Marking

• Centrex Message Waiting Speed Dials • Retrieve Message Waiting

• Button Mapping • Board Configuration

Assigning Stations to the Message Waiting Lines

To indicate message wait, program the message waiting station list or assign the message wait line to the stations as either line appearance, a prime line, a direct or delayed ring, or an enhanced ringing line.

• Use Programming Lines/Message Wait Extension menu entry to assign the extension numbers of up to four stations to the message waiting stations list.

NOTE: This programming scheme is an alternative assigning the message waiting line to stations as either a direct line appearance or a prime line, or enabling direct or delayed ringing for the message waiting line at the station.

Making the Line Assignment

• Use the Programming/Stations menu to assign a message waiting line to a station as either direct line appearance, a prime line, or a direct or delayed ringing line. • Use the Programming/Station Menu/Class of Service to assign line originate to a class

of stations. Then, use Programming/Stations to assign a class of service to a station.

Programming For Centrex Message Waiting – 11 IMI89-350 - Beta Release- Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID

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Completing the Centrex Message Waiting Programming

Requirements

Station Marking

Under Programming/Stations, select the External Message Wait control to mark an individual station as a Centrex Message Waiting station.

Centrex Message Waiting Speed Dials

Under Programming/System/Centrex Message Waiting, select a Centrex Message Waiting Speed dial (1 through 10) to configure a speed dial location for receiving messages from the provider’s message center.

Retrieve Message Waiting

Under Programming/Lines, use Retrieve Msg. Wait to select an index number for a specific Centrex Message Waiting Speed Dial uses for retrieving messages.

Button Mapping

Under Programming/Stations, program aMSGWT (message wait) button for Centrex Message Waiting lamp indications.

Board Configuration

Under Programming/Board Configuration or Programming/Cabinet View, configure the circuit board that supports the Centrex Message Waiting signalling.

Board Programming

As an option, some CO’s may generate and send Abbreviated Incoming Message Wait Ring to the system if a system station’s line was busy when the CO left a message. The CO applies this signal to the system station’s line as soon as that line returns to an idle state. If you desire to filter out the Abbreviated Incoming Message Wait Ring, then do so under Programming Board Menu/Centrex Msg Wait Boards/Incoming Ring Debounce. Caller ID

Under Programming/Lines, program the line for Caller ID.

IMI89-350 - Beta Release- Installing the Loop Start Line Board with Centrex Message Waiting and Caller ID