Maintenance-Object Repair Procedures
555-233-143
8-120 Issue 1 May 2002
ANN-BD (Announcement Circuit
Pack)
The TN750 contains 16 announcement ports each of which can play any recorded
announcement. The circuit pack also has one data line circuit port (port 17) for
uploading and downloading announcement files to and from the system’s disk and
removable media devices. For errors associated with port 17, see ‘‘DAT-LINE
(Data Line Port)’’. For errors associated with ports 1-16 see ‘‘ANN-PT
(Announcement Port)’’.
NOTE:
TN750C is required if the system has multiple announcement boards. To
use multiple announcement boards, you must have V4 or later software, and
at least one TN750C (up to ten are allowed). Only one TN750A/B may be
present in the system when a TN750C is used. The announcements from a
TN750A/B can be saved and restored to a TN750C — but once the
announcements are recorded onto a TN750C, they are not backward
compatible with the TN750A/B.
Essential Service Information
You should have an understanding of the following principles before attempting
work on the TN750/B Announcement circuit pack.
NOTE:
The TN750C Announcement circuit pack has on-board non-volatile storage
and does not need to be saved to disk.
■ The announcement circuit pack retains every integrated announcement as
long as the circuit pack has power. Announcements are preserved through
a software reset (reset board command), but they are lost when the circuit
pack is unseated. (Unseating is generally not recommended unless
replacement is necessary.)
MO’s Name
(in Alarm
Log)
Alarm
Level
Initial Command to
Run
1
1. UU is the universal cabinet number (1–64 for ATM PNC, 1–44 for CSS PNC). C is the carrier
designation (A, B, C, D, or E). SS is the number of the slot where the circuit pack resides (01–21).
Full Name of MO
ANN-BD MINOR test board UUCSS l Announcement circuit pack
ANN-BD WARNING test board UUCSS l Announcement circuit pack
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