Field Wiring For Fire Alarm; Main Fire Alarm Board Wiring; Figure 28 Main Fire Alarm Controller Board Field Terminal Connections - Mircom FLeXNet FX-MNS-6000 Installation And Operation Manual

5.0

Field Wiring for Fire Alarm

5.1

Main Fire Alarm Board Wiring

Wire devices to terminals as shown in Figure 28 below. Refer to Appendix A for specifications
and to LT-1023 for compatible devices.
!
Attention: Do not exceed power supply ratings:
i
Notes:

Figure 28 Main Fire Alarm Controller Board Field Terminal Connections

MD-871A Main Fire
Alarm Controller board
RS485
TROUBLE
ALARM
SUPV.
41
Main Chassis: FX-6000MNS-CH: total current for NACs is 10A max.
"All wiring shall be in accordance with NFPA 70 and CSA C22.1, Safety
Standard for Electrical Installations, Canadian Electrical Code."
The terminal blocks are removable for ease of wiring.
All power limited circuits must use type FPL, FPLR, or FPLP power limited cable.
P3
P4
+
-
S
S
COM
COMMON TROUBLE
CONTACTS
NO
24 VDC, 1 AMP
RESISTIVE LOAD
NC
COM
AUXILIARY COMMON
ALARM CONTACTS
NO
24 VDC, 1 AMP
RESISTIVE LOAD
NC
COM
AUXILIARY COMMON
SUPERVISORY
CONTACTS
NO
24 VDC, 1 AMP
RESISTIVE LOAD
NC
SIG GND
NOT USED
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.
MUST BE
CONNECTED TO A
LISTED POWER
LIMITED SOURCE
OF SUPPLY