Specifications

FS-250 Installation and Operation Manual
35
Serial Remote Device Wiring Overview
When connecting devices on the Serial Interface Circuit, the data wires must be daisy
chained and with no T-taps to preserve the integrity of the data. Each end (two places)
must be terminated with a 120 ohm termination resistor. The following diagrams show the
proper wiring.
P2 Addressable Device Circuit(s)
These devices are polled by the control panel every few seconds and input or output
functions communicated to determine device status or function. The control panel monitors
all device addresses for alarm and trouble conditions.
Loop Circuit 1
Addressable
FS-250 - P2 ADDRESSABLE DEVICE CIRCUIT
A
ddressable Device Circuit
Style 4 or 6 Operation
24VDC nominal
Wire Resistance-50 ohms max
(see Line Resistance Graph)
Supervised, Power Limited
See Owner’s Manual for
Compatible Devices
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