The network element expansion subrack cross board is UXCSB, and after replacing it with an XCE board, the service returns to normal.

Products

OptiX OSN3500

Fault category

TU_AIS

T_ALOS

BD_STATUS

WRG_BD_TYPE

Description

Query the single board physical information on the T2000 network manager. the BA2 board position is shown as PQ1 board, and the EGT2 board position is shown as PQ1 board. slot 17 and slot 5 boards are out of position.

TU_AIS, T_ALOS, BD_STATUS, WRG_BD_TYPE alarms are reported on the expansion subrack, but the service is normal.

One week later, the business was affected due to database corruption.

Cause Analysis

Possible causes:

GSCC board failure

Spare board failure in slot 1 where BA2 is located

Device configuration conflict

Failure of the PQ1 board or AUX board of the expansion subrack

Procedure

Confirm the physical slot of the single board on the base station subrack.

Confirm the placement of the veneer in the subrack and the expansion subrack.

Confirm that the expansion subrack is normally powered on.

The expansion subrack's crossover board must be XCE.

Replace the existing crossover board UXCSB of the expansion subrack with the XCE single board.

Query the expansion subrack alarms, the original alarms are lifted, and no new abnormal alarms are added. The service is back to normal.

Reference Information

The expansion subrack does not need to configure the GSCC single board.