Centralized Alarm Reporting - Nortel DMS-100 Series Reference Manual

6-18 OAS alarm and Control Circuits
The replaced circuits provide additional connections to visual alarm, audible
alarm, and exit panels, and other DMS or non-DMS equipment not part of
the OAU or AXU.
Figure 6-2
RLM alarm extension
NT2X57
Scan detector
card
NT0X10
Scan detector
card

Centralized alarm reporting

The centralized alarm reporting (CALM) feature allows the host dynamic
network controller (DNC) of a large business remote (LBR) switching
network to retrieve the current alarm conditions for each DMS switch in the
LBR network. The DNC can display these alarm conditions.
When active, CALM continuously scans the alarms status of the DMS
subsystems. The scan results are displayed on the MAP display. The
CALM feature compares each status with the status of the previous scan. If
the system detects a change, the system transmits a new status to all logged
in DNC. Current alarm status information is also available to the DNC on
request.
297–1001–122 Standard 06.01 August 1999
Distribution NT5X92AB
frame Extension alarm
circuit
Distribution NT5X92AA
frame Common audible
alarm panels
(maximum of 10)
NT0X63
with audible
(maximum of 2)
NT0X64
Exit alarm panels
(maximum of 5)
Non-DMS
systems
(maximum of 2)