Wire Relay Connection; Figure 17 : Source 3-Wire Scheme; Figure 18 : Sink 3-Wire Scheme - Teledyne Spyglass SG50 F IR3-V User Manual

Spyglass IR3-V
Flame detector
USER MANUAL
The following drawing shows how to wire the detector to act as a current source non-isolated transmitter
(3-wire connection):
Note: Link between 3 and 11 to be wired on site
The following drawing shows how to wire the detector to act as a current sink non-isolated transmitter (3-
wire connection):
Note: Link between 4 and 12 to be wired on site

3.9 4 Wire Relay Connection

This wiring option uses the fault and alarm relay and are connected to fire alarm panels. This connection
allows to connect several detectors on 4 wires in a single loop. On the last detector there is a connected
EOL resistor in the connection box. The value of the resistor depends on the control panel specification.
The number of detectors in a single loop depends on the control panels power supply capacity and length
on wire width.
18

Figure 17 : Source 3-Wire scheme

Figure 18 : Sink 3-Wire scheme

SG50FIR3V-EN
Revision 1.0