Maintenance-Object Repair Procedures
555-233-143
8-276 Issue 1 May 2002
Notes:
a. Error Type 1: the ATM-TRK circuit pack does not appear to be in its
assigned slot.
1. Make sure that the ATM-TRK circuit pack is installed correctly
seated in the slot administered for the ATM trunk.
b. Error Type 18: the ATM circuit pack is busied out.
1. Run release board UUCSS.
c. Error Type 23: an ATM trunk is administered, but the corresponding
ATM-TRK circuit pack does not appear to be physically installed.
1. Make sure the ATM-TRK circuit pack is installed and correctly
seated in the slot.
d. Error Type 125: an ATM trunk is administered but a non-ATM-TRK circuit
pack is installed in the corresponding slot. You have two options:
■ Replace the incorrect circuit pack with an ATM-TRK circuit pack.
■ Or re-administer the slot for the circuit pack that is physically
present, locate the slot where the ATM-TRK circuit pack is actually
installed, and re-administer the ATM trunk.
e. Error Type 257: Control Channel Loop test (#52) failed. The circuit pack is
not properly connected with the control channel on the TDM bus.
1. Take the corrective action specified by Test #52.
f. Error Type 513: ATM Crosstalk test (#1298) failed. The board is writing to
or reading from a TDM time slot that is not allocated to the board, or the
Digital Signal Processor (DSP) selected for this test has malfunctioned.
1. Run test board UUCSS.
2. Take the corrective action specified for Test #1298.
g. Error Type 769, 770: the ATM switch is requesting too many LAP-D
retransmissions (off-board ATM cell corruption errors).
1. Check the connections between the fiber cable, the ATM-TRK circuit
pack, and the ATM switch.
2. See ‘‘PKT-BUS (Packet Bus)’’ on page 8-1230 for test and
corrective procedures.
Error
Type
Aux
Data Description
769 35 Excessive LAP-D retransmission requests
770 25 Uncorrectable ATM cell headers – threshold
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