FTS 371 SMART USER MANUAL
Flash Technology, LLC
Revision 4 – 9/7/2021
16
For DC powered systems, one FTS 371 FH DC IR beacon may be connected. Connect the red wire to J2 terminal
DC+ and black wire to DC-. Connect the blue ground wire directly to the controller backplate using the ground
terminal installed near the beacon PCB connector.
FTS 371 FTC SMART DC
Beacon and Marker Connections
Up to eight of the MKR 371 DC / MKR 372 DC IR series marker lights may be powered from the MARKER OUTPUT
at J3. Connect the red wire to DC+, black wire to DC- and WHT/BLU wire to SENSE. Connect the bare (non-
insulated) shield wire directly to the controller backplate using the ground terminal installed near the beacon PCB
connector.
Note:
The beacons or markers are powered if wired to the connectors. The configuration switches and jumpers
configure alarming.
DRY CONTACT MONITORI NG AND PHOTODIODE CONNECTIONS
Find the dry contact monitoring connections on J4 and J5. The FTS 371 controller allows the option to have a
BEACON, MARKER and PHOTODIODE alarm point available for external monitoring. Also included is the MODE
relay connections that allow remote notification of mode change via a dry contact.
The photodiode (PHD 516) will connect to the far right of J5. If necessary, prepare the photodiode cable by
stripping jacket and removing foil shield from black, clear and drain wires. Connect the wires to matching labels on
the PCB for proper operation (Clear to WHT, Black to BLK and drain wire to SHLD).
Dry Contact Monitoring and Photodiode Connections
RADAR AND PRIMARY/SECONDARY CONNECTIONS
The SYNC connector J7 can be used to provide either beacon inhibit control by an external RADAR input or
primary/secondary synchronization with multiple controllers. Only one of these features is available at a time.
