DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-656DS1-FAC (DS1 Facility)
9
The following DS1 facility options are sent to the TN574 DS1 CONV circuit pac k:
Framing Mode, Line Coding and DS1 CONV-1 and DS1 CONV-2 Line
Compensation.
The following DS1 facility options are sent to the TN1654 DS1 CONV circuit p ack:
Line Coding and DS1 CONV-1 and DS1 CONV-2 Line Compensation (T1 only).
These option fields are given in the fib er link administration screen.
Near-end External Loopback Test (#799)
This test is destructive
This test starts at the DS1 CONV circuit pack whose equip ment location was
entered and traverses over the spe cified facility and loop s back at the manually
hard-wired external loopback device. Depending on the type of physical
connectivity of the DS1 facility, speci al tools, cables or connecto rs may be
required to make the hard-wired loopbacks.
To isolate a problem, set the loopback first at the loopback point LB 1, and then
at the loopback p oint LB 2, see Figure 9-31 and

Figure 9-28.

Place the
loopbacks at as many p oints as your CSU capabilities will allow. Hard-wired
loopbacks at the far end are not desirable, bec ause the equalization level
adjustments may cause p roblems.
Table 9-257. TEST #798 DS1 Interface Options Audit
Error
Code Test
Result Description/ Recommendation
105 ABORT The neighbor DS1 CONV circuit p ack at the other end of the DS1 CONV
Complex is not acc essible.
2100 ABORT Could not allocate the necessary system resources to run this test.
2000 ABORT Timed out while waiting for a response from the circuit pack.
2300 ABORT The downlink message necessary to run this test could not be sent.
2301 ABORT The timer could not be set before sending the downlink message necessary to
run this test.
1. Retry the command at 1-minute intervals a maximum of 3 times.
2316 ABORT Fiber link is not administered. Administer the DS1 CONV fiber link via the add
fiber-link command.
2500 ABORT Internal system error
1. Retry the command at 1-minute intervals a maximum of 3 times.
PASS The DS1 Interface options are sent to the circuit pack.
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