Nortel DMS-100 Series Reference Manual page 62

6-4 OAS alarm and Control Circuits
2 Operation of the SDOC3CUTOFF SD point occurs when an SDOC3
3 The link break does not affect network management IDOC3 hardware.
4 When you complete the DSA test, restoration of the SDOC3 hardware
Figure 6-1
DSA-NWM interaction example
Part of
NT3X82 in OAU
Dead
–48V
system
circuit
Network
management
control
Remote dead system indication
If the office is not attended when the dead system condition occurs, the
Version 1 OAS allows the transfer of the alarm to a remote monitoring
location. Remote alarm transfer must be active for transfer of the alarm to a
remote monitoring location.
297–1001–122 Standard 06.01 August 1999
hardware link break occurs.
link occurs (See Figure 6-1).
Dead system alarm
NT2X57AA
SDOC3CUTOFF
signal distribution
Network management
signal distribution
IDOC3
Part of
NT3X82 in standby MTM/ISM
SDOC3
x
Dead
–48V
system
circuit