Service Manual

GSM-204-523
Digital module and BPSM replacement
31st Oct 01
Maint. 3–42
Maintenance Information: Horizon macro outdoor
CONTROLLED INTRODUCTION
68P02902W04-A
Fitting a replacement digital module
To install a replacement digital module:
1. Remove the replacement module from the anti-static storage container. In
the case of the NIU, ensure it is of the correct type (E1 or T1).
2. Slide the module into the guide rails and push firmly into place. The
ejectors will audibly click into place as confirmation of correct insertion.
3. Connect any fibre optic cables by inserting the connector and rotating a
quarter-turn clockwise to engage.
4. Ensure appropriate LEDs indicate correct operation.
CAUTION
When the two LEDs of the MCUF, are flashing, the boot
code is downloading into non-volatile memory for software
upgrade. Power should not be removed, nor the cabinet
reset, until downloading has been completed, as this will
corrupt the non-volatile memory. If the boot code is
corrupted, contact the Motorola Customer Network
Resolution Centre, requesting the boot code restoration
procedure and the appropriate boot code file.
NOTE Following an NIU switch on or reboot, both red and green
LEDs are initially lit. After approximately 20 seconds, the
red LED will extinguish, indicating normal condition. This
waiting period may be extended to 50 seconds after
rebooting due to a code download.
5. When fitting a redundant MCUF refer to Redundant MCUF firmware
compatibility for details of further checks required.
6. Notify the OMC-R of base station availability and log the maintenance
activity.