Field Wiring; Main Fire Alarm Module Terminal Connections - Mircom FleXNet FNC-2000 Installation And Operation Manual

Field Wiring

Main Fire Alarm Module Terminal Connections

Wire devices to terminals as shown in Figure 25 below. Refer to Appendix A for specifications and to LT-1023 for
compatible devices.
ATTENTION: Do not exceed power supply ratings:
Main Chassis: FX-2003-12NDS, FX-2003-12NXTDS, FX-2009-12NDS or FX-2017-12NDS: total current
for NACs is 10A max.
Notes:
The terminal blocks are removable for ease of wiring.
All power limited circuits must use type FPL, FPLR, or FPLP power limited cable.
Figure 25: Main Fire Alarm Controller Board Field Terminal Connections
42
FX-2000N Main Fire
Alarm Controller board
P3
P4
+
RS485
-
S
S
COM
TROUBLE
NO
NC
COM
NO
ALARM
NC
COM
NO
SUPV.
NC
SIG GND
or COM(-)
Shield one end of the
RS-485 LOOP ONLY
RS-485 INTERFACE TO
ANNUNCIATORS AND
OTHER DEVICES
(POWER LIMITED)
USE TWISTED SHIELDED PAIR
22 AWG UP TO 2000 FT.
20 AWG UP TO 4000 FT.
COMMON TROUBLE
CONTACTS
24 VDC, 1 AMP
RESISTIVE LOAD
AUXILIARY COMMON
ALARM CONTACTS
24 VDC, 1 AMP
RESISTIVE LOAD
AUXILIARY COMMON
SUPERVISORY
CONTACTS
24 VDC, 1 AMP
RESISTIVE LOAD
NOT USED
MUST BE
CONNECTED TO A
LISTED POWER
LIMITED SOURCE
OF SUPPLY