The table below describes field terminals of the Sigma A-CP Fire Control Panel:
Field Terminals Description
Group A
NAC POWER
No user connections, pre-wired connections from the factory, unused user function
POWER
No user connections, pre-wired connections from the factory, unused user function
AUX 24V
24 VDC, 500 mA maximum, unregulated and special application
ALM RES
No connection, unused function
RS485
No Connection. Reserved for future use.
NAC1 and NAC2
Notification Appliance terminals provide outputs containing 24 VDC, supervision and
special application.
Z1 and Z2
through Z4
These conventional inputs accept only authorized conventional detectors that provide
two-wire smoke and closed contacts.
Z1 RET
Class A loop return connections for Z1 terminals only.
Group B
Z5 through Z8
These conventional input terminals accept only authorized conventional detectors that
provide two-wire smoke and closed contacts.
TRBL
Contacts of the trouble relay (TRBL) support a maximum load of 1 Amp with voltage
free
change-over.
SUPV.
Contacts of the supervisory relay (SUPV.) support a maximum load of 1 Amp with
voltage free change-over.
FIRE
Contacts of the fire relay (FIRE) support a maximum load of 1 Amp with voltage free
change-over.
DIALER BOARD
CONNECTIONS
Provides two pairs of connections for line and phone with tip and ring features.
The Dialer Board is an optional feature on models of the Sigma A-CP Fire Control Panel.
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