Motorola T5 Power Broadband Troubleshooting Guide. Motorola Solutions February, 2014

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Motorola T5 Power Broadband

Troubleshooting Guide

Motorola Solutions

February, 2014

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1.0 Introduction

This document has been drafted to assist Motorola field service engineers and business partners installing and supporting the Motorola T5 Power Broadband solution using the unique DSL

communications to the Wallplate (CPE). The Motorola T5 solution provides in line power and data over existing analog telephone communications on a single twisted pair to a wireless Access point deployed in hospitality environments. The use of vDSL technology and Wireless LAN networking makes for a robust solution yet simple to install. This document can be used as a reference for troubleshooting and tuning based on some common practical examples seen when installing such a solution. This document should be used as a starting point with the assistance of Motorola Technical Support if problems persist or cannot be resolved.

2.0 T5 Installation Pre-Cautions/Suggestions

Prior to any installation and deployment of the Motorola T5 switch into customer’s environment, the following precautions/suggestions should be taken into consideration for proper operation and optimum functionality.

1. DSL Line Power – do not enable line power on an un-terminated / unfiltered port

2. Make sure the CPE and all filters are installed before Line Power is enabled to the Wallplate 3. DSL Speed Configuration – Configure DSL ports to something conservative while the rooms are

being installed. 10Mbs down / 10Mbs up is a good, conservative setting.

4. Load Latest Firmware on CPEs and Switch

 Contact Motorola Support Team for latest firmware and release notes

 On the T5 – the CPE firmware and T5 Switch firmware should always match

 If possible, upgrade CPEs prior to installing.

 CPE Upgrades will take longer when DSL speed is set to slower data rates.

5. Prior to installing the Wallplate and Motorola DSL Filters, check dial-tone and speaker tone on all phones. Make a note of any quality issues. This is generally a connection issue in the cabling. 6. When installing the Wallplate and external Filters, make sure filters are installed in the correct

orientation – they are not bi-directional.

o On Inline RJ11 filters

 Output to phone = female side RJ-11 o On hard wired Spider filters

 Red/Orange Wires = input  Blue Wires = output to phone

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7. When turning on DSL power to that room. Always ensure port links up (approx 2 minute wait

time to come into service) before moving on to next CPE or new switch configurations.

8. Check all connected telephones a second time before signing off each room, including speaker

phone. This ensures proper use and terminations.

9. Determine the Maximum Capacity on DSL Lines

 Reconfigure DSL link speed to 100Mb downstream/50Mb upstream. Wait for all DSL ports to link then get output of “show interface dsl status”. See wire-related trouble-shooting section if port(s) don’t meet criteria below, or if they won’t link when configured at 100/50.

 DSL Ports should link with similar values for Speed, Power, Length, and Margin.  Rooms that are in close proximity (length) should usually have similar values.  Rooms at greatest distance from T5 switch will generally have lower data

speeds, higher power consumption and longer length values reported.

 The Margin for DS (downstream) and US (upstream) should be at 6dB or higher.

10. Use the GUI Monitor/DSL to view historical data such as link losses, margin and Code

Violations. A Code Violation is equivalent to Uncorrected Bit Errors in previous T-series products.

11. Post Installation Useful Commands

 Use the “show cpe status” to verify all CPEs are operational.

 Use the “show cpe uptime” command to make sure CPEs have all been linked since installation.

 The “show log” command is useful for troubleshooting and determining cause of any unnecessary reboots.

 Use the “show interface ge status” as a helpful command to make sure GigE port is linked at the correct rate.

 Use the “show interface radio” command to display status of wireless radios and ensure all radios are in operation. This displays operational status, channel in use, and TX power.

 Use “show wireless neighbors” to display all of the neighboring radios that are seen on the same channel by each TW-511 wireless access point.

12. Make sure to record output of “show interface dsl status” in your onsite T5 Installation

Document. This is helpful reference information if problems happen post-install.

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3.0 Troubleshooting Installation

Symptom 1: T5 DSL Line Quality/Low DSL Link Speeds

Summary: In the T5 solution, DSL link quality is a critical component in achieving an optimized system for high speed internet access. This section attempts to address the most common DSL related obstacles found in some deployments. The T5 switch will negotiate the best link speed based on quality of the wiring and infrastructure and the configured line parameters. vDSL2 has unique signaling characteristics that need to be understood when installing large quantity of DSL lines into single wire bundles. Since there are many factors to ensure optimum signal quality, there are a multitude of tools in the T5 for analysis and monitoring of such behavior.

Monitor: Compare the DSL Link Speed values with the other dsl lines to determine if the value is appropriate for its physical wiring conditions and configured values.

 If the desired behavior of the DSL link is for all port speeds to be consistent and equal values then a sacrifice of some bandwidth may be in order.

 If the desired behavior of the DSL link is to obtain maximum data rates on all ports, then some DSL ports might link at lower speeds than others due to interference generated when all DSL lines are linking

simultaneously.

Use “show Interface dsl status” to monitor DSL link speeds both Upstream and Downstream

 The DSL Link Speed Rate is a combination of the configured maximum link speed and minimum link margin in addition to the wiring

environment. Depending on these variables, the DSL data rate for upstream and downstream communications will negotiate at an

optimized value, sometimes less than the maximum configured/desired value.

 Margin for DS (downstream) and US (upstream) should be 6 or higher. A lower margin can result in an unstable link and uncorrected errors. If the SNR is less than 6, reboot that port and check the SNR again.

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 Ports should link with similar values for Power and Length. Values will vary depending on length of wire. Rooms that are in close proximity should have similar values.

 **Note – TW-510 uses less power than the TW-511 Wallplate model.

Remediation 1: Step 1. First try to re-link the line. Performance is derived from SNR link margin.

This value can change during installation when other noise and electromagnetic interference may be on the wire. If the line is re-linked after installation, it will achieve the best performance for the wire condition.

Step 2. Reconfigure the DSL Parameters to a more conservation value based on

the environment.

 Max. Data Rate - Lower to a more conservative value.

 Target Margin – Increase target margin to allow for more noise tolerance on the line (effectively increasing SNR).

Step 3. Check the DSL Status. Navigate in GUI to Monitor/DSL/Status Tab or

from CLI type “show interface dsl status.”

Sample DSL Status in T5 GUI Management

Step 3. Check the DSL Configuration parameters.

 Max Downstream Data Rate/Max Upstream Data Rate  US/DS Target Margins

Step 4. If the monitored DSL line is not within the configured/desired range,

then reconfigure the DSL link speed on 1 or 2 ports to 100Mb downstream /50Mb upstream. If possible, choose a port that is most likely to have longest wire pair. Wait for port(s) to link up again. Monitor the DS and US data rates achieved.

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That link speed should be used to configure the DSL ports.

 If the port linked at 65/25Mb for example, you would then configure all ports to 65/25 or lower. This prevents the ports from taking a long time to link if the switch is rebooted.

Step 6. Wait for all ports to link then get output of “show interface dsl status”

command – Record this information in your installation document.

Remediation 2: Step 1. Verify the physical infrastructure.

 Remove any non-Motorola DSL filters or un-terminated bridged taps on the line.

 Replace lightning arrestors with an arrestor that will support [200vAC] limit. These will often be designed to support DSL applications.  Review wire infrastructure trouble-shooting section if port(s) don’t

Meet the link speed desired, or if they won’t link when configured to a higher data rate.

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Symptom 2: Slow CPE Link Up or Response Times

Summary: Since Release 5.1 of the T5 solution, the ability to monitor the CPE response time in order to determine time delay between the Switch and Wallplate is available for viewing/analysis.

The CPE link time is directly related to the DSL link algorithm. An aggressive algorithm will attempt to get the highest Bit Loading and use the most Spectrums to arrive at the fastest possible line rate. The iterative tuning process can take a lot of time if the wire is very long.

Slow CPE response times can be an indicator of slow data rates applied to the DSL line as well as incorrect configuration. If the response time is too great, it may impact

throughput and performance on real time applications.

Monitor: Step 1. In order to monitor the CPE response times;

Navigate to the Monitor/CPE/Statistics tab in the GUI or in the CLI type in “show cpe

status” to review the log messages

Sample CPE Statistics with Avg. Response Time

You will notice the average, maximum and minimum values for each CPE selected, as well as time stamped graph of the response trend for analysis. If the CPE response time is noticeably too high compared to the others connected. Line quality and wiring will need to be investigated further.

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Step 2. If the CPE link establishment process is taking longer than normal for the

majority of the ports configured, ensure that the DSL link speed configuration is

appropriate for the wiring environment deployed, as discussed early in this document.

Step 3. If the CPE link establishment process is taking longer than normal on just a few

ports, review the T5 log messages to look for multiple re-link attempts and associated error messages.

Use the “show log” command in the CLI or Navigate to Monitor/Messages to review any log messages in the system.

Step 4. Monitor the Failed Full Inits, Failed Recovers in the DSL Statistics to determine

any failures on startup. These values should be at zero. If the value for these counters continue to increment, consult Motorola support for more investigative analysis and any recommendations.

It is recommended to reset the DSL counters in the GUI at Monitor/DSL/Counters/Clear

Counters or in the CLI use the command “clear counters interface dsl1-24” to clear

errors for refreshed view.

Note: Upstream CV Errors and Upstream FEC Errors will increment in large quantities

when the DSL Link is broken. Resetting the statistics on the DSL line will allow for better understanding of error behavior.

Remediation: To increase CPE link up times, reduce the target line rate to an expected value. For

example, set the line rate to 50Mbps and monitor the link response time.

For line quality issues that have associated error messages in the T5 log, refer to the section in this document “Incrementing Errors on DSL Line”

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Symptom 3: CPE Wallplate Does Not Link to Switch

Summary: The CPE will not link to the T5 switch.

Monitor: Step 1. Use the T5 Message Logs to review any significant events for the CPE in

question. Event Logs will show multiple re-links and/or attempts on the observed DSL port.

Use the “show log” command to view messages on switch or in the GUI, Navigate to Monitor/Messages.

Step 2. Monitor the DSL Errors to review any Full INITs and Failed Full INITs

counters incrementing.

Use the “show interface dsl counters” and “show interface dsl errors” to view Initialization counters and any incrementing DSL Line errors on the observed port.

Step 3. Use the “show interface dsl status” . The State will be stuck in “Idle” or

in continual “Linking” state instead of a normal “Linked”. DSL statistics are not available because the link is not up yet in this scenario.

 If the CPE has never linked up prior, the state of the CPE will be continually in “Searching” mode.

 If the CPE was previously linked, and link lost, , the state of the CPE will be continually in “Idle” mode.

 The unit should be in “Linked” state for proper operation.

Remediation 1: Poor wiring conditions such as corrosion on termination or damage to buried cable. These should have been determined and noted during a site audit. Conduct a physical check. Set the target line rate to be 10Mbps. If link is established, begin diagnosing Margin, Errors and data rates.

Remediation 2: Check line power. If line power is showing 12w or more, the line could be too long, or other physical issues are consuming power leaving the CPE starved.

Remediation 3: If “show interface dsl status” or a log message shows the CPE going into

“over-current”, the port will be disabled and re-enabled repeatedly, preventing the

CPE from linking. If the wire is too long, the port can go over-current and shutdown. If a local power supply is connected to a long wire, disable line

power so that line power detection circuit does not disable the port

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Symptom 4: Incrementing Errors on DSL Line

Summary: The T5 switch monitors the DSL line errors and reports any significant events for DSL upstream and downstream line errors. Ideally the link should not have any errors on the line. To determine if errors are occurring, monitor the following areas on the T5 switch. Upstream CV and FEC errors will increment upon link loss of the CPE.

Monitor: Step 1. To determine if CPEs are linked and ready.

 Navigate to Monitor/DSL/Status in GUI or in the CLI type in “show interface

dsl status”

Step 2. To determine if there are any errors on the DSL line.

 Navigate to Monitor/DSL/Errors or in the CLI use “show interface dsl errors “ command to review CVs and FECs. Use “show interface dsl custom ?” to view all error counter options.

Sample output for DSL errors

 DSL Technology automatically adapts to different wire conditions to produce an error-free transmission. On the T5, uncorrected bit errors are noted as Code Violations (CV). Generally, one CV per second for every 10Mb of line rate is allowable. Anything more than that can indicate interference on the wire or a poor link state. First monitor the SNR Margin in the downstream and upstream direction. Reboot the line if you suspect the SNR Margin may be dipping too low. If errors are on any given CPE connection, monitor the error counters diligently and determine if there is a continual issue.

 The T5 reports two specific errors as key identifiers in troubleshooting CPE connection problems. FEC or Forward Error Correction errors as well as CV or

Code Violations are used as significant identifiers to DSL problems. CVs are

unresolved bit errors and FECs are corrected by the error correction in the vDSL frames.

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 To view DSL counters use the command: “sho interface dsl errors”

 If there are accumulating DSL CV errors, clear the DSL error counters. Wait for a few hours and then look at the DSL errors to see if any ports are encountering accumulation of errors. To clear counters in the CLI: “clear

counters interface dsl1-24”

Remediation 1: If Target Margin is below the default value of 6dB, increase the DS and/or US Target margin to provide greater SNR value.

Remediation 2: Review wiring infrastructure and refer to section T5 Cabling Plant

Troubleshooting/Inspection in this document. Incrementing errors can be an indication of poor wiring conditions.

Remediation3: Enable the Interleaver option on the DSL line configuration. Enabling Interleaver option protects the data from impulse noise but adds slight transmission delay. Use the “interface dsl” command to enable US or DS Interleaver options or Navigate to Wired/DSL/Interleaver Option in the GUI.

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4.0 T5 Post Installation Troubleshooting

The following sections apply to a successful installation. These tools will help to optimize the network or solve issues that might arise during operation.

Symptom 1: Degraded Quality of DSL connection

Monitor: SNR Analysis: SNR (signal to noise ratio) and Bandwidth Allocation graphs/counters on

the T5 DSL lines are now available for troubleshooting analysis.

Signal to Noise ratio is relative to the environment it is connected to. The ideal scenario is to get high signal strength compared to lower noise floor for the best line quality and speeds. Obviously the goal is to keep the noise low and signal high. So a high SNR value is better than lower SNR value. This is SNR on the DSL lines so remember DSL is a group of analog frequencies and is subject to noise interference. If the SNR value looks low, check the DSL lines/wires to determine if there is a source for noise interference or poor connections on the DSL.

The SNR graph on the T5 switch is represented in groupings of approximately 500 frequencies. There are 4096 tones or frequencies to make up a vDSL2 connection on the T5 switch. To better represent this on the graph, the GUI groups the frequencies into a visually more user friendly representation.

Notice the sample below depicts an ideal SNR graph for a single DSL/CPE line for both upstream and downstream frequencies. Notice the falloff on the upper and lowest frequencies, which is normal graph curve.

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Bit Allocation Analysis: The bit allocation graph helps to analyze the frequencies used in

the connection and the allocated bandwidth that is applied on each US/DS frequencies. This will help to determine if there are line quality issues possibly from noise or poor physical connection. This can help determine better US/DS granular analysis for

performance troubleshooting. If the US or DS looks inconsistent, then suggest to contact Motorola support for in depth analysis.

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Symptom 2: DSL Line Power Issues

Monitor: No Line Power to the Wallplate/CPE . Check Line Power Configuration on the DSL line.

LED Status Indicators on the switch, Refer to the Addendum C for LED indicators on the CPE ports for power issues diagnosis.

Use the command “show Interface dsl status” to indicate if over current is an issue.

Sample output of over current state in CLI

Use show logging command in CLI to see if message logs are indicated as seen below:

Remediation 1: Enable line power to CPE Wallplates, Navigate to Wired/DSL in the GUI and select the Line Power option for the CPE. Make sure it is configured correctly. Or use ” interface dsl1-24 line-power” command and enable line power in the CLI.

Remediation 2: Check if length of DSL line is greater than 1500/2000 feet for 511/510 specifications.

If the length of the UTP Unshielded Twisted Pair is greater than 1500 ft for TW511 and 2000 ft for TW510 there will be issues with providing power to the CPE.

Remediation 3: Try local DC power supply to see if that remedies the issue. Make sure to

disable in-line power on the T5 switch configuration.

Remediation 4: Line Quality. Determine if the physical line condition is adequate for T5. Re-punch down any poor terminations and review for corrosion or inadequate environment. Re-terminate the DSL terminations or fix any wiring issues as referred to in Section X.

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Remediation 5: DSL Over-Current. If the phone in the guest room is connected without the appropriate DSL line filter (usually a second phone in the room), the DSL line will over current. Sometimes the unfiltered line power will ring the phone, but with T5, that will not always happen. When the DSL line is over-current, the

Wallplate in that room will not link or properly power up.

Remediation 6: Poor Wiring and Corrosion on lines, or Lightning arrestors are usual cause of continual Over-Current conditions seen on the line. Refer to the T5 Cabling Plan Troubleshooting/ Inspection section in this document for wiring inspection.

Remediation 7: Intermittent Over-Current condition is usually an indicator for missing filters or length out of spec for line power (too long)

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5.0 T5 Wireless Radio Troubleshooting

Symptom: Wireless Radio on TW511 Wallplate is Non Operational

Monitor: Step 1. Use the “Monitor/Wireless Radio/ Status” in the GUI or “show

interface radio” command in CLI to show the status of the radio as “UP”. This

indicates the configured country is correct, the radio has been enabled and a WLAN has been associated to the Radio.

Step 2. To determine if the radio is transmitting, view that radio signal from

another radio on the same channel. Determine the BSSID or MAC address of the Radio in question by using the following CLI command “show wireless

wlan”.

Step 3. Then Use “Monitor/ Wireless /Neighbors” to see if the radio is being

received by another radio.

Step 4. Check for connected wireless clients and data transfer from those

clients using “Monitor/ Wireless Client/Status / Utilization” or “show wireless

clients” in the CLI.

Remediation 1: Remove Regulatory Alarms on CPE

Use “show cpe status” to see if there are any regulatory alarms or navigate to

monitor/CPE/status as seen below.

Sample of regulatory alarm on radio 3 and 4

If there is any regulatory alarm noticed, determine if the appropriate Country Code is selected for the TW511 SKU (US/EU/WR). Navigate to System/Settings in the GUI or type in CLI “show config-all” to view the country code set on the T5 switch.

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Remediation 2: Check WLAN Configuration/Radio Allocation

 Use the CPE lights on front of the Wallplate. Make sure radio is broadcasting and LED is illuminated (if configured) in green/2.4Ghz or amber/5Ghz.

 Check the WLAN mapping to determine if the radio is mapped to an SSID

 Use "show interface radio wlan-map”

 Use “show interface radio status” to see if radios are up.

 Use “show wireless neighbors” to make sure all radios see other radios

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6.0 T5 Network and IP Communications Troubleshooting

VLAN Configuration Notes:

The factory default configuration of the T5 contains two VLANs: VLAN 1 for switch management , VLAN 4090 for T5 to CPE management communication. The T5 supports 100 VLANs numbered 1-4094. VLANs are used to control and isolate IP communications between the DSL links, the GigE and FE ports as well as WLAN SSIDs. If any VLAN configuration is customized make sure the following is correctly configured:

 VLAN 4090 is the default used for management communication between the T5 switch and the CPE

 CPE address Range applied in VLAN 4090 correctly

 Make sure DSL VLAN (4090 default) is set as a trunk type VLAN

 VLAN 1 is the default Guest communication VLAN. The defaults are as follows:  FE ports are VLAN type ACCESS on VLAN 1

 GE ports are VLAN type ACCESS on VLAN 1

 DSL ports are VLAN type TRUNK with Native VLAN = 1

 DSL ports are member of VLAN 4090 (for management communication)

 If Guest traffic needs to carry a VLAN tag upstream, make sure you:  Reconfigure GE port VLAN type to TRUNK

 Add VLAN to FE and/or WLAN, DSL ports and GE ports

 Use “show cpe status” to make sure CPEs have been up since installation.

 Also make sure the CPEs are obtaining the appropriate IP address defined in VLAN.

CPE IP Address Range Notes:

The CPEs require an IP address for communication to the T5 switch. The VLAN that is configured (on VLAN 4090 by default) determines the associated IP address range to be given to the CPEs. The CPEs IP address range is customizable and can be applied to any configured VLAN. Only one can be selected. To check if the Wallplate CPEs are obtaining an appropriate IP address. Use “show cpe address”

command to check the CPE addresses. If addresses are not shown, check the configuration of DSL VLAN used and the CPE address range defined.

External IP Communications Notes:

Use the “sho interface ge1 status” to make sure GigE port is linked at the correct rate. Depending on which GE port is used for management or uplink to the customers network, make sure VLAN and IP configurations are correct for each port used.

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7.0 T5 Cabling Plant Troubleshooting/Inspection

Basic Wiring Inspections

 Check Category of Wiring: determine UTP twisted wiring Category. Must be twisted pair.

CAT-3 or greater recommended for optimum speed/power.

 The T-series solution requires UTP (unshielded Twisted Pair) wiring to the room  Check phone closet, IDFs and behind face plate

 Non-UTP can be OK from the IDF to the room (this is pretty common)

 Examine the existing Telco blocks

Sample corrosion on termination block

 Check for Corrosion on Terminals

 Corrosion is usually found in exposed coastal locations

 Corrosion is bad, it will severely limit line power and data rates  On Wallplate side

 On IDF side

o replace or pull more slack to remove corroded terminations o replace any termination blocks

 Check for Improper Punch downs

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correctly

 Look for split pairs  Any loose connections

 Any loose RJ-21 connectors in and out of T-series switch

 Determine appropriate Wiring Distance

 Make sure all total wire distances are within the specification of the solution.

 For T5 with TW-511 Wallplates at distances greater than 1500 feet need to be powered with a local power supply

 For T5 with TW-510 Ethernet Wallplates at distances greater than 2000 feet need to be powered with a local power supply

Symptom: Noise on the Lines

Summary: Interference noise on the DSL line can cause issues with link speed, power support and consistent data communications. The DSL diagnostics graph is best used for this determination and analysis. The SNR and Bit Allocation graphs are best used to determine proper signal characteristics and affects data

communications quality on the line.

Remediation 1: Use the DSL SNR graph and Bit Allocation graphs to determine if any noise interference is noticed on the any of the frequency ranges. The upstream and downstream frequencies can be viewed and if any values that look out of spec need to be investigated further. A sample “good known” graph is shown below for reference. If there are any “gaps” or holes in the spectrum, noise is most likely to be determined on the line.

Remediation 2: If nothing else works, turn on DS or US interleaver in the DSL configuration parameters. This will allow the system to recover its data communications in the event of an EMI induction on the wiring such as large amount of magnetic noise from an elevator or other external source.

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Appendix A:

T5 Wiring Installation Reference/Reminder

This procedure details the wiring interconnect between the T5 switch and PBX telephone wiring plant. This is a sample configuration. Wiring connectivity can vary depending on country or area as well as interconnect standards/types.

Start by identifying the line 1 wire pair on the block. The recommended interconnect installation procedure is to begin replacing cross connects at the room termination block, moving back to the PBX termination block. The reason is simple: In most cases, the room termination blocks are marked with room numbers; whereas the PBX block is marked with cable pairs or PBX port IDs.

 Starting at the House block, remove the “old” wire termination

 (leave the “old” wire attached to the PBX block until step 3)

 Punch down a new wire on the same termination point

 Route the new wire to the cross connect block, punch down on the right side

 Mark the block with the room number using a permanent marker

 Punch down a new wire pair on the left side of the block

 Route the new wire pair to the PBX block

 At the PBX block, remove the “old” wire termination from step 1

 Remove the “old” wire and punch down the new wire on the same termination

 The System is now ready for Wallplate installation

2 1 3 2 2 1 3

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Detailed View of Cross Connect

Expanded view of the wiring, shows the cross connect wire pairs attached to the block. In this example, a type 66 split-50 block is shown. Split-50 means the 50 lugs on the right side are not connected to the 50 lugs on the left side.

Note: the room numbers are marked on the “house” side of the block. If the markings are done during

installation of each line, then errors are minimized.

Cross connection wire pairs

Data Path through the Cross Connect Block

 Analog POTS phone lines from the PBX enter the block from the left side cross connect

 The RJ-21 cable connected on the left side carries the signals to the T5 Switch

 Passing through the T5 Switch, the wire inputs Adaptive Line Power and vDSL2 signals, multiplexed with the analog POTS frequencies from the PBX on the same wire pair

 The RJ-21 cable connected on the right side carries the signals from the T5 Switch back to the block

 The multiplexed signals exit the cross connect block on the right side, toward the house

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Appendix C:

TS524 Switch LED Definitions

1. T5 Status LED - System

• One Status LED is used by hardware, bootloader, and application software. It indicates overall status of the system.

• Solid Amber as soon as power is applied to the unit

• Solid Green when the user applications is loaded and the system can be accessed

2. CPE PORT LED

• 24 port LEDs indicate the status of individual DSL ports. • Off when the DSL line is disabled.

• Flash green slowly, once per second when the DSL line is enabled but before detecting the CPE.

• Flash green when the DSL line is disconnected.

• Flash green quickly in a 125ms cycle while the DSL line is training after detecting the CPE. • Remain solid green after the DSL line is linked.

• Solid Amber when over-current (since R5.1)

• Slow blink Amber when no CPE present (since R5.1)

3. Ethernet LEDs – GE1/GE2 Uplink

There are two LEDs per Ethernet interface. Each pair indicates the link status of the Ethernet line.

Left Ethernet LED

• Off when the Ethernet line is disabled or disconnected.

• Solid Amber when the Ethernet line is connected at 10/100 Mbps. • Solid Green when the Ethernet line is connected at 1000 Mbps.

Right Ethernet LED

• Off when the Ethernet line has no traffic. • Flash Green when the Ethernet line has traffic.

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Appendix D:

Wall plate (CPE) Status LED Definitions

The Status LED indicates overall status of the system and the DSL interface.

• Flash Green slowly (1s) after the DSL line is enabled but before detecting the CO. This also happens when the DSL line is disconnected.

• Flash Green quickly (125ms) while the DSL line is training after detecting the CO • Solid Green when the DSL line is linked

Wireless LED

The wireless LED indicates overall status of the system and the wireless interface. • Off for TW-510, Ethernet-only CPE

• Solid green after the CPE is configured to operate in 2.4GHz mode

• Flash Green when there's wireless activity when operating in 2.4GHz mode • Solid Amber after the CPE is configured to operate in 5.0GHz mode

• Flash Amber when there's wireless activity when operating in 5.0GHz mode

Sample TW511 Wallplate LEDs

To obtain assistance and support

Contact Motorola Solutions Support

Email: ems.support@motorolasolutions.com Phone: 800-653-5350

Motorola T5 Power Broadband Troubleshooting Guide. Motorola Solutions February, 2014