Nortel DMS-100 Series Maintenance Manual page 595

XBERT tests
Test name
XBERTDCC
XBERTBIC
The isolate command automatically runs tests to isolate a fault in a specified
set of cards. The number of cards in the card list can vary from one to three.
The number of cards in the list depends on each test result.
One manual request can test the P-side ports of the XPM or the RLCM bus
interface cards (BIC) in sequence.
Test XBERTDCC (digroup control cards)
To test the digroup control cards (DCC), the XPMDCC test path travels
through the following cards:
Message card (NT6X69)
Timeswitch card (NT6X44)
DS-1 interface card (NT6X50)
DCC (NT6X52)
Link control card (LCC) (NT6X73)
To set up the test path, XBERTDCC attempts to establish a looparound of a
manually specified P-side port at the RLCM DCC. If the attempt is not
successful, the system displays a response and terminates the test. If the
RLCM looparound is successful, the test runs.
Test XBERTBIC (bus interface cards)
To test BICs, the XBERTBIC test path travels through the following cards:
Message card (NT6X69)
Timeswitch card (NT6X44)
DS-1 interface card (NT6X50)
LCC (NT6X73)
DCC (NT6X52)
BIC (NT6X54)
DMS-100 Family RLCM Maintenance Manual XPM12 and up
Trouble isolation and correction 10-7
Related cards
NT6X44, NT6X50, NT6X69, NT6X52, NT6X73
NT6X44, NT6X50, NT6X69, NT6X52, NT6X54,
NT6X73