Product Info
Manuals
Brands
Nokia Solutions and Networks Manuals
Electronics
GSM 800 Transciever
41
42
43
44
45
46
47
48
49
50
Table Of Contents
Maintenance
1 About this document
2 Preparations for maintenance
2.1 Site folder
2.1.1 Fault reporting
2.2 Maintenance equipment
2.2.1 Nokia BTS Manager
2.3 Environmental precautions
2.4 Power supply precautions
2.5 Removing the BTS cover
3 Periodic maintenance
3.1 Maintaining the cabinet
3.1.1 Fan unit and air circulation
3.1.2 Cover
3.1.3 Seals
3.1.4 Lock
3.2 Periodic testing of the BTS
4 Adjusting the 13 MHz clock
5 Troubleshooting
5.1 Testing the BTS
5.2 Troubleshooting checklist
6 Replacing units
6.1 ESD protection
6.2 Removing units
6.3 Recycling of units
6.4 Replacing TRXs
6.4.1 TRX slot identification
6.4.2 Replacing a slave TRX
6.4.3 Replacing the master TRX in BTS configurations with two or more TRXs
6.4.4 Replacing the master TRX in a single TRX BTS
6.5 Replacing the transmission unit
6.6 Replacing the interface unit
6.7 Replacing the power supply unit
6.8 Replacing the cooling fan
6.8.1 Replacing the HVMF cooling fan, version 1
6.8.2 Replacing the HVMF cooling fan, version 2
7 LED indicator conditions
7.1 Transceiver unit LED
7.2 Transmission unit LED
7.3 Interface unit LED
7.4 Power supply unit LED
7.5 Fan unit LED
Maintenance
50 (52)
© Nokia Cor
poration
Draft
DN9913495
Nokia Proprietary and Confidential
Issue
3-0
en
T
ab
le 8.
LED conditions f
or the f
an unit
LED colour
Conditions
Green
Unit operating
Y
ello
w
Operation deg
raded
Red
Unit broken
1
...
...
48
49
50
51
52
