
FMS-2000M
LIT-12013578
17
Wiring the system and BACnet MS/TP communications
+
24V_IN
–
+
DSPLY
RS485
–
+
BACnet
MS/TP
–
REF
120 VAC
24 VAC
Figure 11: FMS-2000M system wiring diagram
Table 7: FMS-2000M system wiring
Callout
Component
1
DIP switch
2
Remote pressure sensor
3
Power supply
Note:
The figure shows a 120 VAC to 24 VAC step down isolation transformer as an example. For information about correct power
supply termination, see the following wiring information:
•
Wiring one remote pressure sensor to the monitor
•
Wiring two remote pressure sensors to the monitor
•
Wiring three remote pressure sensors to the monitor
•
Wiring four remote pressure sensors to the monitor
4
Supervisory device
5
FMS-2000M Critical Environment Monitor