SpectraLink Corporation
Maintenance and Diagnostics
Link WTS – Link 3000 MCU
Part Number: 72-0059-04-E.doc
Page 22
4.5 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 -
Port Card 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.
3. To reset the Base Station: From F2,
Port Card 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
Port Card 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.
4.6 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”s) on the demarc block. Remove any you
find.
3. If the problem persists, follow instructions in
Base Station’s LED Solid Red or
Yellow,
below.
4.7 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.