DS1-FAC (DS1 Facility)
Issue 1 May 2002
8-669555-233-143
Notes:
When problems persist, resetting the DS1 CONV circuit pack via the reset board
command may temporarily resolve the error condition and restore service until
further assistance is provided.
a. A major failure occurred on the DS1 interface hardware on the DS1 CONV
circuit pack associated with this DS1 facility. Replace the DS1 CONV
circuit pack.
b. This error indicates that the DS1 facility has been busied out via the
busyout ds1-facility command. To resolve this error, release the DS1
facility via the release ds1-facility command.
c. A minor failure occurred on the DS1 interface hardware on the DS1 CONV
circuit pack associated with this DS1 facility. Replace the DS1 CONV
circuit pack.
d. DS1 CONV circuit packs in this DS1 CONV complex do not match in their
framing formats or line coding formats.
Aux Data 1 indicates that the framing formats (ESF or D4) do not match.
For TN574 DS1 CONV boards, the framing mode is administered on the
fiber-link form. The TN1654 DS1 CONV has option switches located on
the component side of the circuit pack. If T1 operation is selected via the
first switch, four additional switches are used to select the framing mode for
each facility. The Framing Mode field on the fiber-link form is display-only
for the TN1654 boards. It displays what the switch is set to for the DS1
facility. It cannot be administered.
Aux Data 2 indicates that the line coding formats do not match. Line
Coding is an administrable value on the fiber-link form. The line coding
options are ami-zcs or b8zs for TN574 boards and TN1654 boards in T1
mode. For TN1654 boards in E1 mode, the line coding options are
ami-basic or hdb3.
This error should clear in 15 minutes.
1. Verify that DS1 facility and the network is using the same line coding
(ami-zcs, b8zs, ami-basic, hdb3) and framing mode (ESF, D4). Use
list fibers and display fiber-link commands to check the values for
this DS1 facility. Contact T1 Network Service to check the modes
used by the network.
If the framing mode format differs on boards in a TN1654 DS1
CONV complex, the DS1 CONV board that has its option switch set
incorrectly will have to be physically removed from the system in
order to set the facility framing mode switch properly.
2. If the problem persists, reset both DS1 CONV circuit packs via the
reset board command.
3. If the problem still persists, replace this DS1 CONV circuit pack.
4. If the problem still persists, replace the DS1 CONV circuit pack at
the other end of the DS1 CONV complex.
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