Flash Technology
Revision A - 2/13/2020
28
MKR 371
The MKR 371 is a DC driven LED marker, which is designed for easy installation and minimal service.
The installation/mounting kit is comprised of (2) adjustable band clamps, wire nuts and electrical
tape. The provided 18AWG marker cable will be run through metallic flexible conduit for enhanced
EMI and RF protection.
PC 270, FH 372 & MKR 372 TERMINATION JUMPERS
Termination jumpers are found on the PC 270 PCB1 (controller board), FH 372 PCB1 (core board) and the MKR 372
Marker Interface PCB1 (marker board). These jumpers are used to assign an endpoint for the RS-485
communication link between the FTC 270 (ground controller) and the tower light components. The last lighting
unit in the RS-485 link should have the jumper in the closed position (covering both pins), with all other jumpers in
the open position.
Lighting Unit
Jumper Position*
PC 270
FH 372
MKR 372 Marker Interface
*Jumpers shown in the closed position.
