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ND-71548 (E) CHAPTER 6
Page 385
Issue 2
FAULT RECOVERY DURING TESTS
NAP-200-057
Sheet 2/2
Abnormal Lamp Indications After System
Startup
Perform the following when the OPE lamp (Green) does not turn ON on a Trunk circuit card.
Confirm that the MB switch of the circuit card is DOWN.
Using command “ATRK”, check whether Trunk data has been assigned for the circuits on the
card.
Replace the circuit card with a spare.
Perform the following when the OPE lamp of a Trunk circuit card turns ON, but the BL lamp (Red) for
an individual circuit flashes.
Confirm that the MB switch for each circuit of the card is OFF.
Using command “MBTK”, confirm that the trunk circuit is not in Make Busy state.
Using command “ATRK”, check whether trunk data has been assigned for the trunk circuit.
Replace the circuit card with a spare.
Perform the following before replacing a circuit card which is considered defective with a spare.
Confirm the switch settings on the circuit card.
Poor contact at the connector portion of the circuit card may be responsible for the malfunction.
Check the circuit card once again by inserting and extracting it two or three times.
END
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
A