FlameSpec
IR3-H2
User Manual
F150V0020.04
For more information & Technical support: (+1) 714-671-8500 · [email protected]
14
The following drawing shows how to wire the detector to act as a current source non-isolated
transmitter (3-wire connection):
F
IGURE
6
–
S
OURCE
3-W
IRE
S
CHEME
The following drawing shows how to wire the detector to act as a current sink non-isolated
transmitter (3-wire connection):
F
IGURE
7
–
S
INK
3-W
IRE
S
CHEME
4.3
RS-485 Communication Network
Using the RS-485 network capability of the detector and communicator software, it is possible to
connect up to 32 detectors in an addressable system with 4 wires only (2 for power and 2 for
communication). Using repeaters, the number of detectors can be much larger (32 detectors for
Controller
24VDC
Return
Detector
1
/
2
3
4
11
Controller
24VDC
Return
Detector
1
2
3
12
4
