Performing The Loopback Test; Table 8-7 Description Of The Parameters Shown In The Loopback Test Dialog Box - Huawei BTS3900 GSM Commissioning Manual

BTS3900 GSM
Commissioning Guide
Step 6 Perform operations according to the result displayed in the Board Alarm Information dialog
box.
If...
No alarm is generated, Close the Board Alarm Information dialog box. Then, repeat
An alarm is generated, Clear the alarm according to the suggestions provided.
----End

8.3 Performing the Loopback Test

The GTMU loopback test is performed to check the link between the Site Maintenance Terminal
System and the GTMU. The DRFU loopback test is performed to check logical path A or logical
path B of the DRFU.
Context
Only the GTMU and DRFU support the loopback test.
in the Loopback Test dialog box.

Table 8-7 Description of the parameters shown in the Loopback Test dialog box

Parameter
Data length
Initial data
Data step length
Procedure
Step 1 Select Board in the left pane of the Site Maintenance Terminal System window, and then
double-click Board Management in the right pane of the window.
The Board Management window is displayed, as shown in
Issue 03 (2008-07-15)
NOTE
Each red grid represents an alarm.
Meaning
Length of the valid data of a single frame in the loopback
test command sent from the GTMU or DRFU to the
board.
Initial value of the valid data in the loopback test
command sent from the GTMU or DRFU to the board.
Incremental step length of the valid data in the loopback
test command sent from the GTMU or DRFU to the
board.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
8 Checking the Operating Status of the BTS3900
Then...
2 through Step 6 to check the alarm information of other boards or
modules.
Table 8-7 describes the parameters shown
Figure 8-4.
Step
Value
Range
1-220
0-255
0-255
8-7