Avaya S8700 Series, Maintenance Manual

Page: 204 / 2618

Additional Maintenance Procedures
555-233-143 5-18 Issue 1 May 2002
TDM Bus Time Slot Test Call
The time slot test call connects the voice terminal to a specified time slot on the A
or B TDM Bus of a specified port network. To connect to any out-of-service time
slots, refer to
‘‘Out-of-Service Time Slot Test Call’’ on page 5-19 .
To test a specific time slot on the TDM bus of a specific port network:
1. Dial the FAC described in the introduction to this section and listen for dial
tone.
2. Dial the 2-digit port network number followed by
#
and the 3-digit time slot
number listed in the following table.
3. Listen for one of the following tones:
TDM Bus Time Slots
When you address a tone-carrying time slot on the TDM bus (A or B) that is
currently carrying tones, you will be connected to that time slot and will hear the
tone.
■
Time slots 005 – 021 and 261 – 277 (bus A) are reserved to carry the
system’s dedicated tones.
■
Time slots 000 – 004 and 256 – 260 (bus B) carry control information and
are not addressable.
■
Time slots 254 and 510 are not addressable due to a hardware constraint.
At any given time, only one of the TDM busses (A or B) carries the dedicated
tones, with B being the default. Entering status port-network will display which
TDM bus is currently carrying the dedicated tones. The corresponding time slots
on the other bus are normally inactive and are only used for call service, as a last
resort, when every other non-control channel time slot on both busses is busy.
Reorder tone The time slot is in use, the time slot is not addressable,
or inter-PN resources are not available to make the
call.
Confirmation tone The time slot is idle or out-of-service. The time slot
may be on the TDM bus (A or B) that is not currently
carrying tones, or it may be busied out. The call is
connected to the time slot so that any noise may be
heard.
System tone The time slot is carrying a system tone as listed in the
following table.