Service Manual

GSM-205-523
Replacing a SURF module
31st Oct 01
Maint. 2–24
Maintenance Information: Horizon macro indoor
CONTROLLED INTRODUCTION
68P02902W09-B
Fitting a replacement SURF module
To fit a replacement SURF:
1. Transfer the protective caps on the RF connectors from the replacement
module to the faulty module.
2. Insert the replacement SURF module firmly into place. Take care to avoid
trapping cables as the module is seated.
3. Tighten the four captive M6 torx screws to correct torque (see Overview
of replacement procedures).
4. Reconnect the coaxial RF cables to the positions noted in the removal
procedure. Tighten to correct torque (see Overview of replacement
procedures).
5. Reset the SURF circuit breaker button on the CBM.
6. Reset the CTU circuit breaker buttons on the CBM. Each RADIO STATUS
LED will flash green for about two minutes, and then remain lit.
7. Enable the CTU transmit RF power by using the ins_device command
at the OMC-R or from a PC connected to the MCUF. The Tx STATUS LED
(yellow) will be lit if the CTU is transmitting.
8. Notify the OMC-R of base station availability and log the maintenance
activity.
The SURF module replacement is now complete.