SpectraLink JPI300 Setup guide

Link 3000 MCU
Maintenance and Diagnostics
Link Wireless Telephone System
Part Number: 72-0059-04
Issue J

SpectraLink Corporation Maintenance and Diagnostics
Link WTS – Link 3000 MCU
Part Number: 72-0059-04-J.doc Page 2
Notice
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SpectraLink reserves the right to make changes in specifications and other information contained in this
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SpectraLink software consist solely of those set forth in the written contracts between SpectraLink and its
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Trademark Information
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LinkPlus
Link
NetLink
SVP
Are trademarks and registered trademarks of SpectraLink Corporation.
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All other trademarks used herein are the property of their respective owners.
SpectraLink Corporation
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www.spectralink.com
Copyright © 2001 to 2007 SpectraLink Corporation. All rights reserved
Information in this document is subject to change without notice and does not represent a commitment on the
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between the user and SpectraLink Corporation OR (3) the terms and conditions previously agreed to in writing
between the user and an authorized SpectraLink reseller (each, the “Agreement”). The software may be used
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Part Number: 72-0059-04-J.doc Page 3
WARNING: Changes or modifications to this equipment not approved by SpectraLink
Corporation may cause this equipment to not comply with part 15 of the FCC rules and
void the user’s authority to operate this equipment.
WARNING: SpectraLink products contain no user-serviceable parts inside. Refer servicing
to qualified service personnel.
IMPORTANT SAFETY INFORMATION
Follow these general precautions while installing telephone equipment:
•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
•When installing Base Stations outside or in buildings other than the one containing the
System Controller, take the following precaution:
If wiring for a Base Station exits a building—whether to reach an outdoor Base
Station location or to reach a Base Station in another building—the wiring must be
protected at both ends by a Quick Clip Fuse from Illinois Tool Works, Linx Division,
model number SCP-2X2. The Quick Clip Fuse replaces the bridging clips on the 66
blocks for all four connections to the non-internal Base Station.

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Table of Contents
1. About This Document 6
1.1 SpectraLink Corporation Model Numbers 6
1.2 Related Documents 6
1.3 Contacting SpectraLink 6
1.4 Icons and Conventions 6
2. Troubleshooting Overview 7
3. System Maintenance 8
3.1 Replace an Interface Module (Hot Swap) 8
3.2 Add a Handset 9
3.3 Replace a Handset 9
3.4 Delete a Handset 10
3.5 Add a Base Station 10
3.6 Delete a Base Station 11
3.7 Add a Shelf 11
3.8 Delete a Shelf 12
4. Handset Problems 13
4.1 Using the Handsets 13
4.2 No Extension/Wrong Extension Displayed 13
4.3 “No Svc” Displayed 14
4.4 No Dialtone / No Audio 14
4.5 No Handoff 15
4.6 Calls Ring on the Wrong Handset 15
4.7 Multiple Handsets Not Working 15
5. Base Station Problems 16
5.1 Multiple Base Stations Not Working 16
5.2 Base Station LED Not Lit 16
5.3 Base Station LED Flashing Red and Green 16
5.4 Base Station Disabled 17
5.5 Base Station Will Not Download 17
5.6 Base Station LED Flashing Red 18
5.7 Base Station LED Solid Red or Yellow 18
5.8 Base Station LED Flashing Red, Yellow, Green 18
6. Troubleshooting During Start-Up Phase 19
6.1 Boot ROM LEDs 19
6.2 Boot ROM Alarms 20
6.3 Downloads 20
6.4 Configuration Changes 20
7. Troubleshooting Card Alarms 21
7.1 System and Shelf Controller Card Status Indicators 21
7.2 Interface Module Status LEDs 23
7.3 Reading the Status LEDs 24
8LED and Alarm Troubleshooting Tables 25
8.1 System Controller Card Alarm Matrix 25
8.2 System Controller Card Troubleshooting Matrix 26
8.3 Shelf Controller Card Alarms 30
8.4 Shelf Controller Card Troubleshooting Matrix 31

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8.5 Interface Module Alarm Matrix 33
8.6 Interface Module Troubleshooting Matrix 34
8.7 T1 Alarms 37
9Terms and Acronyms 39

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1. About This Document
This document describes the procedures for troubleshooting, maintaining, and
expanding the Link Wireless Telephone System (Link WTS).
1.1 SpectraLink Corporation Model Numbers
This document covers the following registered model numbers:
JPI300, MCS300, RCC400, RCO400, RCU100, RCU200, RCU201
1.2 Related Documents
Link 3000 MCU: Installation (72-0059-01)
Link 3000 MCU: Operator’s Console (72-0059-02)
Link 3000 MCU: Facility Preparation (72-0059-05)
Link 3000 MCU: T1 Remote Module Installation (72-0059-06)
LinkPlus Interface Guide (72-0171-xx) as appropriate for the PBX.
Installing the Outdoor Base Station (72-0050-01)
Available at http://www.spectralink.com/resources/manuals.jsp.
LinkPlus Interface Guide (72-0171-xx where xx indicates a number corresponding to the
type of PBX)
Available at http://www.spectralink.com/resources/interface_guides.jsp.
1.3 Contacting SpectraLink
SpectraLink wants you to have a successful installation. If you have questions please
contact our Customer Support Hotline at [phone]. The hotline is open
Monday through Friday, 6 a.m. to 6 p.m. Mountain time.
1.4 Icons and Conventions
This manual uses the following icons and conventions.
Caution! Follow these instructions carefully to avoid danger.
Note these instructions carefully.
NORM This typeface indicates a key, label, or button on the MCU, Operator’s
Console, or Link Wireless Telephone (handset).

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2. Troubleshooting Overview
The Link WTS software constantly monitors system components for problems. If a
problem is detected, the system will flag the problem with an alarm. Alarms are
displayed in two places:
Operator's Console
The Chk3000 program allows the administrator or technician to display details about
each system component. If the component is in an alarm state, details about the
alarm will display on the appropriate screen. See the Link 3000 MCU: Operator's
Console manual for more information.
LEDs
The front panels of all system cards (System Controller, Shelf Controller, and
Interface Modules) have six LEDs: one red (labeled ALARM), and five green (labeled
1 through 5) to indicate status, including alarm conditions. LED sequences,
descriptions, and recommended procedures are provided in Troubleshooting sections
6, 7, and 8, covering troubleshooting for each type of card.

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3. System Maintenance
This section explains some common maintenance procedures.
3.1 Replace an Interface Module (Hot Swap)
Interface Modules can be removed and replaced without shutting the system down.
Interface Modules must be replaced with the same type of card.
To perform a “hot swap” of an Interface Module:
1. From the Operator’s Console, press F2, Portcard State Display. Display the
Portcard to be swapped, so you can monitor its status during the process.
2. On the card to be replaced, move the Normal/Disable switch to the Disable
position. This locks the card and disables the Base Stations to prevent new calls
from starting, but does not drop active calls. Existing calls are allowed to
complete before the card is locked.
3. When the alarm light stops blinking and turns solid red, the card is idle. Verify
this on the Operator’s Console, all lines and Base Stations should show no
activity. If you unplug the card before it is idle, the system may alarm.
4. At the Operator’s Console, press Esc. This stops the Operator’s Console from
trying to monitor the card you are about to remove.
5. Unplug the 25-pair cable from the card.
6. Unscrew the card from the shelf and slide it out.
7. Slide the replacement Interface Module into the slot, until the card clicks into
place. Tighten the screws at the top and bottom of the card to secure it.
8. Connect the 25-pair cable to the card.
9. When the heartbeat LED sequence displays on the Interface Module (LED 1
flashes 1/3 of the time), press F2, Portcard State Display on the Operator’s
Console to verify the status of the new card. It should be Running.

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3.2 Add a Handset
Before adding a new handset, you must have a port location on the demarcation
block on the switch and a port location on the Link 3000 MCU Interface Module. If
no ports are available on the Link 3000 MCU, you must install another Interface
Module in the shelf. See Link 3000 MCU: Installation .
1. Connect the host telephone system port to the Link 3000 MCU Interface
Module port assigned to the new handset.
2. On the Operator’s Console, press F4, Portcard Configuration Display and
Administration.
3. Using the arrow keys or mouse, position the cursor on the port location to be
configured, and press Enter.
4. When the menu displays, scroll down to Edit Line, and press Enter.
5. At the pop-up menu, type the information for the handset.
Serial Number The factory assigned serial number for this telephone, located
inside the battery compartment under the battery. Double-check this number
when it is entered. If the serial number is entered incorrectly the telephone will
not function and will appear to be defective.
Note (optional) User name or any other information. Do not enter quotes (“) in
this field or an error message will display.
Extension/SPID Extension number or SPID. Must be numeric.
6. When information is correctly entered, select SAVE to save it.
7. To program the handset to display the correct extension number, hold down the
FCN key until Volume Level displays. Press the # > key until EXTENSION displays on
the handset. Press 0, then enter the correct extension number. Press END when
finished.
8. When the handset is turned on, the extension will be displayed. Test the new
handsets by placing a call to each one to verify that the correct telephone rings.
3.3 Replace a Handset
Use this procedure to replace a handset with a new handset.
1. On the Operator’s Console, press F4, Portcard Configuration Display and
Administration. Use the Search function to locate the handset to be replaced,
searching for the extension or the serial number.
2. Highlight the port location of the telephone and select Edit Line.
3. When the pop-up screen displays, replace the serial number of the old telephone
with the serial number of the new telephone.
4. Select SAVE to save the change.

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3.4 Delete a Handset
Use this procedure to completely remove a handset from the system, without
replacing the telephone with another.
1. On the Operator’s Console, press F4, Portcard Configuration Display and
Administration.
2. Using the arrow keys or mouse, position the cursor on the port location of the
telephone to be deleted, and press Enter.
3. When the menu displays, scroll down to Delete Line, and press Enter.
4. Scroll to DELETE and press Enter.
5. If you do not plan to re-use the port on the Link WTS, remove the cabling for
this telephone between the host telephone system and the Link WTS’s demarc
block.
3.5 Add a Base Station
Before adding a new Base Station you should have a port location for the new
equipment. If no ports are available on the Link 3000 MCU, you must install another
Interface Module in the shelf. See Link 3000 MCU: Installation .
1. Install the new Base Station. See Link 3000 MCU: Installation .
2. On the Operator’s Console, press F4, Portcard Configuration Display and
Administration.
3. Using the arrow keys or mouse, position the cursor on the port location to be
configured, and press Enter.
4. When the menu displays, scroll down to Edit RCU (Base Station), and press Enter.
5. At the pop-up menu, type the information for each Base Station.
Offset Offset IDs manage the division of the frequency (spectrum) among the
Base Stations. To prevent interference, neighboring Base Stations require
different offset values. Each Base Station is assigned a unique two-digit offset.
Press the right arrow key to see a menu of choices.
•For half-hop systems with up to 25 Base Stations, or whole-hop systems with
up to 50 Base Stations, number the Base Stations in order 1 through 25 or 1
through 50.
•If the system has more Base Stations, the offset IDs must be reused. Consult
the map that was generated during system installation. Assign unique offsets
such that adjacent or nearby Base Stations do not share the same offset.
When selecting offset assignments, keep in mind through-floor penetration
and the Base Station’s proximity to windows.
•Offset usage is summarized on the Show RCU Offset Reuse function from F2 -
Portcard State Display. This report shows how many times each Offset has
been used.
Isolated? If this Base Station is isolated from all other Base Stations, enter Y. An
isolated Base Station is one that is located physically apart from other Base

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Stations, therefore will never be heard during a Listen Verify diagnostic.
Designating a Base Station as Isolated will disable the Listen Verify alarm for that
Base Station and avoid generating spurious alarms.
Note (optional) type a short description of where the Base Station was installed
(a room or floor number, for example). Up to 30 characters. Do not enter quotes
(“) in this field or an error message will display.
6. When information is correctly entered, select SAVE to save it.
To replace a Base Station, unplug the existing Base Station and plug in the new Base
Station.
•The LED will blink red and green as the system software downloads to the Base
Station and the Base Station is tested.
•When the LED blinks amber, the system is ready for operation.
•When the LED blinks green, a handset has established a radio link with that Base
Station.
•If the LED turns solid red, blinks red, or continues to blink red and green, refer
to section 5 Base Station Problems .
3.6 Delete a Base Station
Use this procedure to completely remove a Base Station without replacing it with a
new one.
1. On the Operator’s Console, press F4, Portcard Configuration Display and
Administration.
2. Using the arrow keys or mouse, position the cursor on the port location of the
Base Station to be deleted, and press Enter.
3. When the menu displays, scroll down to Delete RCU, and press Enter.
4. Scroll to DELETE and press Enter.
5. If you do not intend to move the Base Station to a new location, disconnect the
cabling for this Base Station from the demarc block.
3.7 Add a Shelf
If the existing shelves in the MCU are not large enough to hold the required
Interface Modules, you must add a shelf to the system. The system can support 19
Expansion Shelves.
1. Install the shelf. See Link 3000 MCU: Installation .
2. If you moved Interface Modules from one shelf into the new shelf, use the Move
Portcard function to modify the existing Interface Module configuration to reflect
the change.
3. Register the new handsets and/or Base Stations on the new shelf. See section 3.2
Add a Handset and section 3.5 Add A Base Station .

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3.8 Delete a Shelf
If you move or reconfigure your system, you may need to completely delete a shelf.
1. On the Operator’s Console, press F4, Portcard Configuration Display and
Administration.
2. If you are completely removing the handsets and Base Stations from this system,
delete the Base Stations and handset by deleting each Interface Module on the
shelf using the Delete Portcard (Interface Module) option.
3. If you are moving the handsets and Base Stations from this shelf to another, use
the Move Portcard (Interface Module) option to designate the new shelf location
of the Interface Module. Note that you cannot move an Interface Module to a
slot which already contains configuration information. Also, the Interface
Module must be physically moved to the new slot and connected with a cable in
order for the module to become operational.
4. When all Interface Modules have been deleted or moved from the shelf, press
F1, Supervisor State Display. Select the Delete Cabinet (shelf) option to delete the
shelf.
5. After the shelf is deleted from the system you can physically remove it and its
cabling.

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4. Handset Problems
4.1 Using the Handsets
The Link WTS is an in-building wireless communication system that allows hand-
held Wireless Telephones (handsets) to communicate using the existing telephone
system. Calls are sent to and received by the handsets via small radio transceivers
called Base Stations, located throughout the building or campus. When using and
troubleshooting the handsets, consider the following concepts.
Call hand off
As the user moves through the facility, your conversation will be “handed off” from
one Base Station to another.
In range/Out of range
Service will be disrupted if a user moves outside the transmission area of the Link
WTS. Service is restored if the user moves back within range of a Base Station. If a
call drops because a user moves out of range, the handset will recover the call if the
user moves back into range within a few seconds.
Capacity
In areas of heavy use, the call capacity of a particular Base Station may be filled. If
this happens, the user can wait until another user terminates a call, or move within
range of another Base Station and try the call again. If a user is on a call and moves
into an area where capacity is full, it is the same as moving out of range of a Base
Station.
Transmission Obstructions
Thorough site survey was done prior to installation to determine the best location
for Base Stations for optimum transmission coverage. However, small pockets of
obstruction may still be present, or obstructions may be introduced into the facility
after system installation. This loss of service can be restored by moving out of the
obstructed area. Base Stations can also be added to overcome obstructions.
4.2 No Extension/Wrong Extension Displayed
1. Hold down the FCN key until Volume Level displays.
2. Press the # key twice until the display reads Extension.
3. Press 0, then enter the correct extension number.
4. Press END when finished.

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4.3 “No Svc” Displayed
The handset is either not registered, out of range, or can’t pick up a signal from a
Base Station.
1. Visually check to see if the handset is within range of a Base Station where other
telephones are working.
2. From the Operator’s Console, search for the handset’s serial number or
extension number to be sure it is properly registered.
3. If other handsets in the area are also not working, see section 4.7 Multiple
Handsets Not Working below.
4.4 No Dialtone / No Audio
If the handset has no dialtone, or if the user is unable to hear the other party’s voice
or heard echo or dead air.
1. Be sure the handset is powered on.
2. Be sure the No Svc icon turns off a few seconds after the handset is powered on.
3. Swap the Battery Pack with a Battery Pack from a functional handset. If this
corrects the problem, charge the Battery Pack.
4. Turn the handset off then on again, then test again for dial tone and voice
quality.
5. Move through several Base Station areas to be sure the handset is within range of
an operating Base Station.
6. Check for alarms on the System Controller, Shelf Controller, or Interface
Module cards (F1, Supervisor State Display or F2, Portcard State Display). If the
handset is connected through a digital interface, the system will show an alarm. If
the state is anything but idle, the handset is in alarm. If there are alarms, see the
applicable Troubleshooting Alarms section.
7. Check that the system connects when the user goes off-hook. On the Operator’s
Console, from the Portcard State Display screen (F2), view the status of the line
when the user goes off-hook.
8. Make sure the handset’s Interface Module is connected to a working phone line.
Use a telephone test set to check the line at the demarc block.
9. Check the cabling between the Interface Modules and the demarc block, and
between the demarc block and the telephone system ports. See Link 3000
MCU: Installation for more information.
10. Isolate the handset line on the PBX from the Link 3000 MCU. Connect a wired
telephone to the port to see if the wired telephone operates properly.
11. Move the handset to a different port location and test again.

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4.5 No Handoff
If the user walks between Base Station coverage areas, the conversation is not
handed off, and the call is dropped.
1. Using another handset, confirm that both Base Stations are operational.
2. Verify that the handset can hand off between other Base Stations.
3. On the Operator’s Console, from the Portcard State Display screen (F2) check the
status of the Base Stations. It is possible that the Base Stations have four calls
(the maximum) in progress. If the Base Station is handling three or fewer calls
and still drops the call, see section 5 Base Station Problems .
4.6 Calls Ring on the Wrong Handset
The handset has probably not been registered correctly.
1. From the Operator’s Console, use the Search function to find the handset’s serial
number and check its port location.
2. Trace the wires from the back of the Interface Module to the host telephone
system to be sure it is actually connected to that port location.
3. If the physical location is different, note the correct port location. From Portcard
Configuration Display and Administration (F4), use the Edit Line function to change
the serial number on the correct port. If the port location is already in use by
another handset, you will need to delete that handset (using Delete Line), then
change the serial number on that port location to the serial number of the new
handset.
4.7 Multiple Handsets Not Working
If several of the handsets are not working there may be a problem with the Interface
Module that controls them, or with one or more Base Stations.
1. Check to see that the handsets are correctly registered. See Link 3000 MCU:
Operator’s Console
for instructions.
2. At the Operator’s Console, use the Search function to display details about the
handsets (searching for serial number, extension, or user name). If they are all
connected to the same Interface Module, there may be a problem with that
Interface Module.
3. Try replacing the Interface Module with a different module of the same type. See
section 3.1 Replace an Interface Module (Hot Swap) for instructions.
4. Check the cabling between the Interface Modules and the demarc block, and
between the demarc block and the telephone system ports. See Link 3000
MCU: Installation for more information.
5. If the problem persists, diagnose the Base Stations.

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5. Base Station Problems
The first step in diagnosing Base Station problems is to isolate the problem to the
Base Station. Be sure the problem is not limited to a single handset. When a problem
occurs with a handset, try the same procedure using another telephone, or several
telephones (see section 4 Handset Problems .)
If all or several handsets are affected, try the following troubleshooting procedures.
If you try the following troubleshooting procedures and the Base Station still does
not work, return the unit to SpectraLink for service.
5.1 Multiple Base Stations Not Working
If several of the Base Stations are not working there may be a problem with the
Interface Module that controls them.
1. At the Operator’s Console, check for alarms on the Supervisor State Display (F1)
and Portcard State Display (F2) screens. Cards or components in alarm will have
an exclamation point (!). See the applicable Troubleshooting section for more
information.
2. Check to see that the Base Stations are correctly registered. See Link 3000
MCU: Operator’s Console for instructions.
3. If all of the Base Stations are connected to the same Interface Module, there may
be a problem with that Interface Module. Try replacing the Interface Module (see
section 3.1 Replace an Interface Module ) and re-testing the Base Stations.
4. Use a voltmeter to check for 48V DC on the Base Station wiring.
5.2 Base Station LED Not Lit
The Base Station is not receiving power. On the Portcard Status screen (F2) the status
may show Reset.
1. Be sure the RJ-45 connector is plugged into the Base Station.
2. Be sure the MCU is turned on.
3. With a voltmeter, check the 48V DC on the wiring between the MCU and the
Base Station.
5.3 Base Station LED Flashing Red and Green
The LED on the Base Station is designed to flash in specific colors and patterns to
reflect its functioning. At startup the system goes through a “listen” procedure to
ensure that the Base Stations do not interfere with each other. During the “listen”
process the LED will flash red and green for approximately two minutes.
Certain flashing patterns indicate a problem that needs to be addressed:
•If the System Controller disables a Base Station because it interferes with another
Base Station, the disabled Base Station’s LED will flash red and green.

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•If the Base Station is stuck in “download” the LED will flash red and green. In
this case, verify the status of the Base Station at the Operator’s Console. Press
F2, Portcard State Display. If status is Disabled, see section 5.4 Base Station
Disabled , below.
•If status is Download and the DL Time is longer than one to two minutes, see
section 5.5
Base Station Will Not Download , below.
Also:
•Try disconnecting and reconnecting the power from the Base Station. Unplug
the RJ-45 connector on the Base Station then plug it back in again, or remove
the bridging clips from the demarc block and replace them. If necessary, reset
several Base Stations at once by removing the cable from the Interface Module.
Remember, this will also disconnect lines and drop calls!
•Make sure there are no bridge taps (“Y” connections) on the demarc blocks.
Remove any you find.
•Use a voltmeter to check the lines for the 48 V dc to be sure there are no power
problems.
5.4 Base Station Disabled
The System Controller will disable a Base Station if it is too close to another Base
Station or if there are communication errors between the Base Station and the
System Controller. Once disabled the Base Station does not handle any calls.
1. On the Portcard State Display (F2) check that the status of this Base Station is
Disabled.
2. Before moving Base Stations, check the facility’s floorplan and the latest Listen
Verify diagnostic (F1, Check Listen Verify Report or Show Listen Report) for errors
and information.
3. To enable this Base Station, disconnect it and relocate it so it is farther from
other Base Stations.
4. Disconnecting and reconnecting the Base Station will automatically activate the
“listen” procedure. Run the Listen Verify Diagnostic (F1, Run Listen Verify) and
review results to be sure the problem is corrected without creating any new
problems.
5.5 Base Station Will Not Download
If a Base Station is stuck in download, the LED may flash red and green or just red;
the status on the Operator’s Console will show Reset or Download; and the Base
Station will be locked up (not handling calls).
1. At the Operator’s Console, check to see that the Base Station is registered, using
F2, Portcard State Display.
2. Check the status of the Base Station. If the status shows Download or Download
Data, the Base Station has locked up during download.

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3. To reset the Base Station: From F2, Portcard State Display, highlight the Base
Station and press Enter, then select Reset RCU from the menu.
4. If the Base Station still does not download, try disconnecting power from the
Base Station and then reconnecting it (unplug the RJ-45 connector on the Base
Station then plug it back in again, or remove the bridging clips from the demarc
block and then replace them.)
5. On the Portcard State Display (F2) screen, select the Base Station in question and
press Enter to show Base Station Detail. This shows continuous update of the
Base Station’s status. The DL Errors field shows the number of Download Errors.
Any number greater than 0 indicates a problem. RCU Link shows current
transmission errors. These errors are generally caused by hardware problems.
Contact SpectraLink Customer Support for assistance.
5.6 Base Station LED Flashing Red
This indicates that the Base Station is not communicating with the MCU.
1. Follow the instructions in Base Station LED Flashing Red and Green.
2. Be sure there are no bridge taps (“Y” connections) on the demarc block.
Remove any you find.
3. If the problem persists, follow instructions in section 5.7 Base Station LED Solid
Red or Yellow , below.
5.7 Base Station LED Solid Red or Yellow
This indicates a short in the Base Station’s transmit or receive wire pairs, usually
within a pair.
Be sure none of the wires are shorted together. Remove the RJ-45 connector from
the Base Station. Remove the cable between the Interface Module and the demarc
block. Then use an ohmmeter to be sure there is an open circuit between pins on the
RJ-45. If you do not want to remove the cabling from the Interface Module (so you
do not interfere with system operation), remove the bridging clips on the demarc
block for that Base Station, then test with the ohmmeter.
5.8 Base Station LED Flashing Red, Yellow, Green
The Base Station’s microprocessor is faulty. Replace the Base Station and contact
SpectraLink customer service.

SpectraLink Corporation Maintenance and Diagnostics
Link WTS – Link 3000 MCU
Part Number: 72-0059-04-J.doc Page 19
6. Troubleshooting During Start-Up Phase
This section describes the sequence of the LEDs on all system cards when the
system is first powered on (Boot ROM and Download of software).
6.1 Boot ROM LEDs
When the system is powered on, the normal sequence is for the green LEDs to
'count' up from 1 to 12 in binary. The following table outlines the sequence.
LEDs Code Description
0 0 Entered boot code.
1 1 Done RAM test (check boot code CRC, flash type, factory page CRC,
downloaded CRC in that order).
2 2 Sent recognition character at 115200 (if carrier detected).
1, 2 3 Sent recognition character at 57600 (if carrier detected).
3 4 Sent recognition character at 38400 (if carrier detected; send recognition
character at 9600 if carrier detected).
1, 3 5 Jumping to downloader code.
2, 3 6 Entered downloader code.
1, 2, 3 7 Copied to RAM, entered C code (check flash type, sense board slot, check
board type, CRC functional code, start IPC, in that order).
4 8 Checking for a keepalive message.
1, 4 9 Sent version to supervisor.**
2, 4 10 Awaiting download (sending requests if no other download).**
1, 2, 4 11 Jumping to functional code (functional code then blinks all the LEDs).
** Note: Codes 9 and 10 both blink at one-second intervals while awaiting a response

SpectraLink Corporation Maintenance and Diagnostics
Link WTS – Link 3000 MCU
Part Number: 72-0059-04-J.doc Page 20
6.2 Boot ROM Alarms
During system boot, if alarms are encountered the red LED will be on. The alarm
code will display on the green status LEDs, consisting of one second of blank lights
followed by two LED sequences which each display for one second.
LED 1 LED 2 Description Recommendation
1 1 RAM test failed. Replace card.
1 2 Flash type incorrect. Replace card.
1 1, 2 Boot code CRC incorrect. Contact SpectraLink Customer Support.
1 3 Factory page CRC incorrect. Contact SpectraLink Customer Support.
1 1, 3 Downloader CRC incorrect. Contact SpectraLink Customer Support.
1 2, 3 Bad board type. Contact SpectraLink Customer Support.
1 1, 2, 3 Bad board slot. Contact SpectraLink Customer Support.
1 4 Bad functional code. Contact SpectraLink Customer Support.
1 1, 4 Incompatible functional code version. Card requires newer version of functional code.
Contact SpectraLink Customer Support.
2 1 Error starting IPC. Replace card.
2 2 Supervisor communications refusal. Interface Module card is not configured for PBX
type.
2 1, 2 No keepalives detected. Shelf Controller card is not yet operating.
2 3 Bad shelf number. Contact SpectraLink Customer Support.
1, 2 1 Error writing or erasing flash. Replace card.
1, 2 2 Error downloading FPGA (not used by
Interface Module).
Replace card.
6.3 Downloads
During downloads, either from the serial port or across the IPC, the green LEDs
'count' up to show progress in the download. Each serial packet or IPC page
increments the count and it wraps to zero after getting to 31.
6.4 Configuration Changes
When changes are made to the configuration (Base Stations or Lines added or
changed), the information is sent from the System Controller to the Shelf Controller
and Interface Modules. Status LED 5blinks on each card during the configuration
download.