Nortel Communication Server 1000S Maintenance Manual page 201

Self-test error codes
Table 62 lists the self-test failure codes for the NTAK79/NTBK50 2.0 Mb
PRI. These codes can be returned on card power-up in the form "DTA105 L
X" (where X is the failure code), or during a self-test procedure in LD 60 as
"DTI009 L X" (where X is the error code).
Failure codes 1-14 are hardware failures on the NTAK79/NTBK50 card.
Codes 15-16 might be due to carrier span problems or lack of loopback
activation at the far end.
Table 62
Self-test error codes (Part 1 of 2)
Failure code
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2.0 Mb PRI maintenance
Associated error
Self-test passed.
Self-test general failure.
LCAs failed to program correctly.
8031 code checksum failure.
8031 internal RAM failure.
8031 external RAM failure.
PAD RAM failure.
AO7 signaling interface failure.
UART (card LAN) failure.
CEPT transceiver failure.
Line interface failure.
Receiver framing failure.
Transmit/receive (inter)national bit failure.
Yellow (remote) alarm failure.
PCM path integrity failure.
ISDN Primary Rate Interface
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