157 = CI-1, NI FIFO overflowed, and has been cleared. 128 message
were lost.
255 = TS16-DS30X FIFO overflowed, and has been cleared. 128
messages were lost.
147 = The TN of MESSOUT 28 received was not that of TS 0.
148 = The TN of MESSOUT 29 received was not that of TS 0.
149 = Upon enabling the DTI card, the CI-1 was unable to write Frame
0,
TS 16 with '0B'.
150 = MESSOUT 26 was received with the PPM counting bit (abcd) all
equal to zero.
151 = MESSOUT 28 was received with the outpulsing bit (abcd) equal to
zero.
152 = CI-2 failed to respond to the CI-1 watch dog message.
153 = The CI-2 failed to respond to five consecutive watchdog messages
and is assumed to be out-of-service.
154 = MESSOUT received requesting the lower nibble of MFAS pattern
to be written with something other than '0000'.
155 = MESSOUT received requesting '0000' to be written into an 'abcd'
state.
156 = MESSOUT received with a TN outside the range shelf 0, card 8-1,
unit 3-0.
DTI009C ch DTI009 error codes for CI microprocessor (M=C):
157 = CI-1, NI FIFO overflowed, and has been cleared. 128 message
were lost.
255 = TS16-DS30X FIFO overflowed, and has been cleared. 128
messages were lost.
Near-end trunk loopback test
The near-end trunk loopback test checks the integrity of the 2.0 Mb link from the system to the
far end. Either a per-loop or per-channel test may be run, with the far-end device placed in the
respective mode of remote loopback. Refer to Figure 30: Near-end trunk loopback on
page 142.
The commands for a near-end per-loop loopback test are shown in Table 68: LD 60 - Perform
a near-end per-loop loopback test. on page 142.
System DTI maintenance tools
ISDN Primary Rate Interface Maintenance November 2011 141
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