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Maintenance Object Repair Procedures
555-233-123 10-154 Issue 4 May 2002
ANN-PT (Announcement Port)
The TN750 Announcement circuit pack is a service circuit pack that provides a
customer with an integrated means for recording announcements that can be
played back on demand by call processing as part of a calling feature (that is,
announcements on hunt group calls). There are 16 Announcement Ports on the
Announcement circuit pack. Each port can play any integrated announcement,
independently of the other ports. In addition to the 16 Announcement Ports, the
Announcement circuit pack also has one Data Line Circuit Port (Port 17). The
Data Line Circuit Port is used for uploading/downloading the announcement
memory to/from the system tape. If there are any errors associated with Port 17,
refer to “DAT-LINE (Data Line)” Maintenance documentation. If there are any
errors associated with the circuit pack, refer to “ANN-BD (Announcement Circuit
Pack)” Maintenance documentation.
The Announcement circuit pack has two processors on it. The first processor, or
Angel, controls the circuit pack, and communicates with the switch via the control
channel on the TDM Bus. The second processor, or SP, controls the speech
memory and announcements. Digital speech is converted from its TDM Bus form
to an internal storage form (for recording) and vice versa (for playbacks) by the
140AY device on the circuit pack, which has 16 channels (one for each
Announcement Port).
General Notes
Here are a few very important general notes that apply to any problem on the
Announcement circuit pack. The user should read this before attempting to work
on the TN750 Announcement circuit pack or Announcement Ports, especially if
the circuit pack needs to be replaced.
1. The Announcement circuit pack retains all integrated announcements as
long as the circuit pack has power. For this reason, whenever there is a
problem with either the Announcement circuit pack or an Announcement
Port that may require the circuit pack to be reset, it is always better to try to
reset the circuit pack via the reset board PCSS command first and, if that
does not work, then try to reseat it. Announcements are preserved
through a software reset, but they are lost when the circuit pack is
reseated.
MO Name (in
Alarm Log) Alarm Level
Initial Command to
Run
1
1 Where P is the port network number (1 for PPN and 2 or 3 for EPN); C is the carrier
designation (for example, A, B, C, D, or E); and SS is the address of the slot in the
carrier where the circuit pack is located (for example, 01, 02, etc.).
Full Name of MO
ANN-PT MINOR test port PCSSpp l Announcement Port
ANN-PT WRN test port PCSSpp l Announcement Port