Checking The Running Status Of The Bts; Checking The State Of The Bts Leds - Huawei BTS3900 GSM Commissioning Manual

5 Commissioning the BTS (Transmission Unavailable)
If...
Some LEDs are not in the on in green
status
Step 2 Check the connection between the RFU and the BBU.
1.
2.
3.
Step 3 Check the connection between the cascaded RFUs.
1.
2.
3.
Step 4 Repeat
panel and other RFUs.
----End

5.5 Checking the Running Status of the BTS

This describes how to check the running status of the BTS. Check the running status of the BTS
involves checking the status of LEDs and alarm information on the SMT.

5.5.1 Checking the State of the BTS LEDs

To determine the running status of the BTS boards or modules, you need to check the state of
the LEDs on them. The LEDs are distributed on the following boards or modules: GTMU
(mandatory), UBFA, UPEU, RFU, GATM (optional), FAN unit, PMU, PSU (AC/DC), and PSU
(DC/DC).
5.5.2 Checking the Alarm Information of the BTS on the SMT
This describes how to check the BTS alarms on the SMT. If an alarm is generated, you need to
clear the alarm according to the handling suggestions on the SMT.
5.5.1 Checking the State of the BTS LEDs
To determine the running status of the BTS boards or modules, you need to check the state of
the LEDs on them. The LEDs are distributed on the following boards or modules: GTMU
(mandatory), UBFA, UPEU, RFU, GATM (optional), FAN unit, PMU, PSU (AC/DC), and PSU
(DC/DC).
5-26
NOTE
The status of the LED corresponding to the CPRI port that is not in use should be OFF.
Check that one end of the CPRI signal cable is securely connected to the CPRI0 port on
the RFU, and the other end is securely connected to the CPRI port on the BBU.
Check the SFP male connectors at both ends of the CPRI signal cable. If the connector is
faulty, replace it.
If the LEDs is still in the on in green status, replace the optical module of the CPRI port.
Check that the signal cables between cascaded RFUs are securely connected to the
CPRI0 and CPRI1 ports.
Check the SFP male connectors at both ends of the signal cables between cascaded RFUs.
If the connector is faulty, replace it.
If the LEDs is still in the on in green status, replace the optical module connected to the
CPRI port.
Step 1 through Step 3
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Then...
The communication between the CPRI0 port on
the BBU and the RFU is faulty. Go to
to check the transmission between other CPRI ports on the GTMU
BTS3900(A) GSM
Commissioning Guide
Step 2.
Issue 02 (2009-04-20)