8018653 1.1 Troubleshooting • 4-3
You are unable to establish T1 lines 4-7
You are unable to establish E1 lines 4-8
The STMs fail to come online and stay online 4-9
Start
Perform procedures in section 3.1, "Activation"
to verify that PDU power switches are set to ON.
Has power
been restored
to BSC rack?
Yes
No
Problem is not caused by the BSC rack. Refer to
site-specific documentation to troubleshoot electrical
supply system
BSC rack is operational.
Has power
been restored
to BSC rack?
Yes
No
BSC rack is operational.
Verify that all source voltage supply line circuit breakers are set to ON.
Is -48 VDC
present?
Yes
No
The power distribution unit (PDU)
must be replaced.
Verify that -48 VDC is being supplied to the PDU.
Flowchart 4-1. No power to BSC rack
To Next Page
Loading...
Need help?
General