7
9580-A2-GZ40-10
June 1999
Power-On Self-Test
When power is applied to the FrameSaver SLV 9580 DSU, it performs a series of
internal tests. The SYSTEM TST and SYSTEM OK LEDs are on during the
power-on self-test. When the test is complete, all LEDs light up for about five
seconds, then assume their assigned functions. After the test:
If the test ran with no errors, the SYSTEM OK LED stays on and the
SYSTEM ALM (Alarm) LED turns off.
If any step of the power-on self-test failed, the SYSTEM OK LED cycles on
and off rapidly (10 times per second) and the SYSTEM ALM LED stays on.
If the processor failed, the SYSTEM OK and SYSTEM TST LEDs stay on.
If the power-on self-test failed, a message describing the failure can be displayed
on the Health and Status screen of the Asynchronous Terminal Interface.
Self-Test Results Messages
Message
What It Indicates
What To Do
Bypassed
Self-test was disabled when
the unit was powered up or
reset.
No action needed.
CPU Fail
The CPU failed internal
testing.
1. Reset the unit and try again.
2. Call your service representative for
assistance.
3. Return the unit to the factory.
Network T3 Fail
The FrameSaver SLV 9580
DSU failed to internally loop
data on the network T3
circuit.
1. Verify the connection between the
unit and the T3 source.
2. Reset the unit and try again.
3. Call your service representative for
assistance.
4. Return the unit to the factory.
Memory Fail
Memory verification failed.
1. Reset the unit and try again.
2. Call your service representative for
assistance.
3. Return the unit to the factory.
Failure
ffffffff
An internal error has
occurred, identified by the
8-digit hexadecimal code
ffffffff.
1. Record the failure code; reset the
unit and try again.
2. Call your service representative for
assistance.
3. Return the unit to the factory.
Passed
No problems were found
during power-up or reset.
No action needed.
