Tones During Esa Mode - Nortel DMS-100 Series Maintenance Manual

Operating company personnel override a time-out value other than zero to
start a manual exit. Operating company personnel busy the LCM units of
the RLCM at the LCM MAP level to override the time-out value. Personnel
must use the FORCE option with the BSY command.
The following steps describe the manual exit sequence:
1 The C-side communications between the DMS CC and the RLCM
restore.
2 The DMS CC discovers that the RLCM is in ESA mode.
3 The DMS CC queries the RLCM for the number of active calls.
4 The DMS CC displays the number of active calls on the MAP display
and queries the operating company personnel if ESA-exit is desired.
5 If operating company personnel confirms to the DMS CC that ESA-exit
is desired, the DMS CC sends the ESA-exit request to the ESA
processor.
6 If operating company personnel does not want to continue with the
ESA-exit, the RLCM is left ManB. The RLCM stays in ESA mode.
7 The RLCM and the ESA processor perform exit operations.
8 The ESA processor tells the LCM to return the LCC card to normal
operations.
9 The ESA processor sends operational measurements, peg counts, and the
reason that the RLCM dropped into ESA mode to the DMS CC. This
information appears in the PM171 and PM181 logs.
10 The DMS CC RTS the RLCM.
11 RTS the ESA processor and RMM nodes.
12 Receiver off-hook

Tones during ESA mode

The ESA clock and tone card (NT6X75AA) provide five continuous tones
when an RLCM is in ESA mode. The LCM interrupts these tones to give
specified types of tones as the system requests. The tones appear on channel
16 on the incoming C-side ports of the RLCM. The following table shows
the RLCM ESA tones, channel appearance, and cadence.
DMS-100 Family RLCM Maintenance Manual XPM12 and up
ESA maintenance overview 3-23