Flash Technology
Revision A - 2/13/2020
17
HIGH INTENSITY LED LIGHTING SYSTEM – FTC 270 (SYSTEM CONTROLLER)
An internal wiring diagram is shown in Figure 6-1.
TB1 INPUT POWER AND TOWER COMMUNICATIONS (RS-485)
Input power connects to terminal block TB1 (Bottom right of the FTC 270). Mounted on TB1 is a Metal Oxide
Varistor (VR1), which reduces line surges and transient voltages.
An internal power disconnect (circuit breakers)
are also mounted on TB1. Remove power from the FTC 270 before servicing circuit breakers or MOV. Input voltage
range for the controller is 120-240 VAC 50/60 HZ.
The RS-485 communication cable also connects to TB1 (Far right on the terminal block). This communication link
provides a 2-way data exchange between the ground controller (FTC 270) and the tower lighting components (PC,
FH and MKR). The RS-485 link allows the controller to update the operating firmware of the boards (PCBs) on the
tower, via the PCB2 Tower Controller Board.
Flag Indicator on the 2-pole circuit breakers is clearly marked with green OFF and red ON.
