Nortel DMS-100 Series Maintenance Manual page 190

4-22 ESA maintenance overview
ESA manual exit
A manual exit is an exit from ESA mode that the operating company personnel
start at the LCM MAP level with the RTS command. The system requires a
manual exit when any of the following conditions exist:
•
•
Manually-busy the LCM units to manually override a time-out value (other
than zero). Manually-override the LCM units of the OPM at the LCM MAP
level to start a manual exit. With the use of the Force option, use the BSY
command.
The following steps describe the manual exit sequence:
1. The system restores the C-side communications between the DMS CC
2. The DMS CC discovers that the OPM is in ESA mode.
3. The DMS CC queries the OPM for the number of active calls.
4. The DMS CC displays the number of active calls on the MAP display.
5. If operating company personnel confirm the DMS CC ESA-exit, the DMS
6. If operating company personnel do not want to continue with the
7. The OPM and the ESA processor performs exit operations.
8. The ESA processor tells the LCM to return the LCC card to normal
9. The ESA processor sends operational measurements, counts, and the
10. The DMS CC RTS the OPM.
11. RTS the ESA processor and RMM nodes.
Tones during ESA mode
The ESA clock and tone card (NT6X75AA) provides five continuous tones
when an OPM is in ESA mode. The LCM interrupts these tones to gives
system specified types of tones. The tones appear on channel 16 on the
297-8361-550 Standard 04.02 December 2004
Both LCM units of the OPM are in a ManB state.
The RLCMM_XPMESAEXIT office parameter time-out value is zero.
and the OPM.
The DMS CC also queries if operating company personnel want
ESA-exit.
CC sends the ESA-exit request to the ESA processor.
ESA-exit, the OPM stays ManB. The OPM stays in ESA mode.
operations.
reason that the OPM dropped into ESA mode to the DMS CC. The system
displays this information in the PM171 and PM181 logs.