Nortel DMS-100 Series Reference Manual page 39

Figure 4-2
Alarm system for a large office
Optional audible alarm panels
(maximum four NT0X66)
Optional audible alarm cutoff key
panel (NT5X86)
Cross-aisle ACD (NT0X63)
ACD (NT0X63)
TTC audible alarm panel
(NT0X61)
Audible alarm panel
(NT0X66)
Audible alarm panel
(NT0X66)
Equipment row 1
Equipment row 40
Standby MTM shelf
OAU dead system card
(NT3X82AA) EAS use NT3X82AC
OAU shelf
OAU dead system card
(NT3X82AC) EAS use NT3X82AC
OAU alarm transfer or alarm sending card
(NT3X83AA or NT3X84AA)
OAU alarm group card (NT3X85)
Miscellaneous scan detector cards (NT0X10)
Signal distribution cards (NT2X57)
Optional alarm
cutoff control
circuit
(NT5X86)
MAP
IOC
Alarm cross-connect unit shelf
EAS use NT3X89AB
or NT3X89CA
Data link controller (NT0X89) or
NT3X8906 or NT3X8907
Data loop
DMS-100 Family Alarm System Description Reference Manual BASE12
Version 2 Enhanced Alarm System 4-3
Optional exit pilot
lamps (maximum
ten NT0X64)
DMS switch
Optional audible
and visual alarm
extension unit
(NT5X85)
DMS power plant
Exit pilot lamps
(NT0X64)
DF
To
remote
alarm
receiving
unit
To
other
floors for
alarm
grouping