How do I install the wires for an iNX/iDX to a Tapco RRFB?
PWR & GND: The iNX/iDX needs 10-24 VDC for power between power and ground.
Buttons (+/-): The iNX/iDX needs 7-32 VDC across button terminals. Upon pressing the button, the voltage must drop to ~0VDC in order to signal the RRFB. This connection creates a contact closure which triggers the controller to start flashing the lights.
Lights (+/-): The iNX/iDX needs a signal to the lights input from the controller (7-32 volts). The voice message will not play without the button detecting voltage across the lights inputs.

Once wires are installed properly, check voltage across the 2 LIGHTS wires while pushing the button.
- If you get a constant voltage without fluctuating:
- iNX: Settings > LED Flash Behavior = Play Predefined Pattern - Rapid Flash
- If you get fluctuating voltage:
- iNX: Settings > LED Flash Behavior = Track Ltsln - Track Lights Input
iNX/iDX To TAPCO Terminal Block with INPUT
iNX/iDX Terminal |
Wire Color |
Terminal Block |
Function |
GND |
Black |
0 VDC - |
Common ground |
PWR |
Red |
12 VDC+ |
Provides +12 V power to pushbutton |
BUTTON (non-polarized) |
Orange |
INPUT |
Button press creates a contact closure triggering the RRFB to start flashing |
BUTTON (non-polarized) |
Yellow |
0 VDC- |
Common ground |
LIGHT (non-polarized) |
Blue |
LED2- |
Provides confirmation signal that beacons are flashing to iNX, triggering audio message |
LIGHT (non-polarized) |
Brown |
12 VDC+ |
Provides +12 V to the lights input |
iNX/iDX To TAPCO Terminal Block with N/O
iNX/iDX Terminal |
Wire Color |
Terminal Block |
Function |
GND |
Black |
0 VDC - |
Common ground |
PWR |
Red |
12 VDC+ |
Provides +12 V power to pushbutton |
BUTTON (non-polarized) |
Orange |
COMMON |
Common ground |
BUTTON (non-polarized) |
Yellow |
N/O |
Button press creates a contact closure triggering the RRFB to start flashing. |
LIGHT (non-polarized) |
Blue |
LED2- |
Provides confirmation signal that beacons are flashing to iNX, triggering audio message |
LIGHT (non-polarized) |
Brown |
12 VDC+ |
Provides +12 V to the lights input |