User Guide
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-295CARR-POW (Carrier Port Power Unit) for DC-Powered Systems
10
2029 ABORT Internal System Error.
1. Retry the command at one-minute intervals a
maximum of five times.
2. If the test continues to abort, escalate the problem.
FAIL There is a problem with one or both port carrier power
units on the tested carrier.
1. For each port carrier power unit that has all status
LEDs OFF, check the DC input to the port carrier
power unit at the port carrier power unit outlet (see
Figures 11-19 through 11-22). If there is no DC, then
check the appropriate circuit breakers for the
affected port carrier power unit. If the circuit breaker
has tripped (that is, it is in the down position), reset
the circuit breaker. If the circuit breaker trips again
or DC is not present at the port carrier power unit
outlet, there is probably a power wiring problem in
the cabinet. Follow normal escalation procedures.
2. At this point, DC should be present at the port carrier
power supply outlet. If the carrier being tested is the
1A or 2A carrier, or the 1B carrier in a High or Critical
Reliability system, refer to"Troubleshooting Control
Carrier Power Units"" in Chapter 5, "Routine
Maintenance Procedures". Otherwise, use the
recycle carrier PC command (where PC is the
appropriate port network and carrier) in an attempt
to bring back the power units for this carrier. If the
test passes, the trouble is cleared. If the test does
not pass, one port carrier power unit, or both, in the
tested carrier is defective.
If only one port carrier power unit is defective, the status
LEDs on the healthy port carrier power unit light green
for a moment. When the recycle test determines that
both port carrier power units are defective, the software
turns off power to both the good and defective port
carrier power units. This causes the status LED(s) on the
good port carrier power unit to light red.
Table 10-85. TEST #127 Power Unit Query Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page