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SX-200 ICP MX Technician’s Handbook
Connecting a Night Bell and Alarm Device
Night bells and devices such a lamps used to signal Critical alarms
connect to the general-use relays via the DB-9 and RJ-45 connectors. See
Appendix C for connector pinouts and relay states.
The night bell and alarm device each require an independent power supply.
The contacts are rated at 90mA @60 Vac or Vdc peak. Connection of the
bell or alarm device must be through an auxiliary relay if the total current
requirement exceeds the relay contact ratings.
All equipment (bell, power supply, etc.) are customer-supplied.
CDE programming for a Night Bell
The default database contains the required CDE programming for Night
Bell operation If using a different database, complete the following
programming:
1. In Form 18 (Miscellaneous System Ports), assign an extension
number to the night bell extension (default 340) at bay/slot/circuit/
subcircuit n/13/29/01, where “n” is the IP bay number (default 1).
2. In Form 14 (Non-Dial in Trunks), assign the night bell extension as
night answer point.
CDE programming for an Alarm Device
• In Form 18 (Miscellaneous System Ports), assign Major Alarm to
bay/slot/circuit/subcircuit n/13/29/2, where “n” is the IP bay number
(default 1).