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The OSN2500 SSQ2SAP board is a system auxiliary interface board used in OptiX OSN systems to provide various management interfaces and auxiliary interfaces.There are two functional versions of the SAP board, Q1 and Q2.Q2SAP realizes the isolation of PGND and GND; it supports the function of single-board compatibility substitution.Q2SAP can be a direct replacement for Q1SAP.The main differences between the two versions areThe main difference between the two versions is that the indicators on the panel are different, andthe Q1SAP single board has been discontinued.
Technical specifications
SAP single-board indicators include mechanical indicators and power consumption, SAP single-board for the system to provide a variety of management interfaces and debugging interfaces, and for the sub-shelf of single-board +3.3V power supply centralized backup and other functions.Provide centralized backup function of +3.3V power supply for each single board of the sub-frame (1:N protection for secondary power supply of each single board), and the power of backup 3.3V power supply is 82.5 W.Monitor and control the two independent -48V power supplies of the sub-frame, and carry out over-voltage (-72V) and under-voltage (-38.4V) detection. Provide 1 debugging interface COM to realize the inter-board communication function between each single board of the sub-frame.
Mechanical Specifications
The mechanical specifications of the Q1SAP veneer board are as follows:
- Veneer size: 25.4mm (W) x 235.2mm (D) x 261.4mm (H)
- Weight: 0.7kg
The mechanical indicators of Q2SAP veneer are as follows:
- Veneer size: 25.4mm (W) x 235.2mm (D) x 261.4mm (H)
- Weight: 1.0kg
Power consumption
The maximum power consumption of the SAP veneer is 25W at room temperature (25°C).
Hardware failure causes the SAP single board to go offline and fail to report the switching alarm, and the failure is eliminated by replacing the single board.
OptiX OSN 2500
Failure Category
- COMMUN_FAIL
- COMMUN_FAIL
- BD_STATUS
Phenomenon Description
The SAP on the OptiX OSN 2500 equipment does not report switching alarms, and on the panel of the network element, the SAP is grayed out. At the same time, two tributary boards, one optical amplifier board, and two PIU boards report COMMUN_FAIL and BD_STATUS alarms. Hard reset the SAP veneer, the fault is not lifted.
Cause Analysis
The SAP board is used to realize the inter-board communication function between the boards in the subrack, and when more boards report BD_STATUS and COMMUN_FAIL alarms, the SAP board failure should be considered first.
Operation steps
- Replace the SAP board, the alarm is lifted, and the problem is solved.
