TB Box ---------------------------------------------------------------------------------- Headset (Female 7 pin XLR) ---------------------------------------------------------------------------------- Pin 1: J2 on IFB PCB Red Wire (pin 2) Pin 2: TP1 on IFB PCB (Black wire) Pin 3: J2 on IFB PCB Blue Wire (pin 4) Pin 4: Mic Out Pin 1 & White wire off transformer Pin 5: Talkback button Pin 3 Pin 6: Mute Button Pin 2 & Blue wire off transformer Pin 7: NC Mute Red Button ---------------------------------------------------------------------------------- Pin 1 (LEft from back): Talkback Button Pin 3 Pin 2 (Right from back): Talkback Button Pin 1 & Headset Pin 6 Pin 3 (Top from back): NC Pin 4 (Botton from back): NC Talkback White Button: ---------------------------------------------------------------------------------- Pin 1: Mic out Pin 3 & Mute Button Pin 2 Pin 2: Mic out Pin 2 Pin 3: Headset Pin 5, Mute Button Pin 1, & Red Wire off transformer Pin 4: TB Out Pin 3 & Purple Wire off transformer Pin 5: TB Out Pin 2 Pin 6: Yellow Wire off transformer Mic Out (Male 3 pin XLR) ---------------------------------------------------------------------------------- Pin 1: 105K 100V L1 to TB Out Pin 1 Pin 2: TB Button Pin 2 Pin 3: TB Button Pin 1 TB Out (Male 3 Pin XLR) ---------------------------------------------------------------------------------- Pin 1: 105K 100V L1 to Mic Out Pin 1 Pin 2: TB Button Pin 5 Pin 3: TB Button Pin 4 RTS-REV Switch ---------------------------------------------------------------------------------- Orientation is top to botton Left to Right Pin 1: RTS-Rev Switch Pin 6 Pin 2: RTS-Rev Switch Pin 5 Pin 3: J1 on IFB PCB Blue Wire (pin 3) Pin 4: J1 on IFB PCB Red Wire (pin 2) Pin 5: RTS-Rev Switch Pin 5 & RTS Loop Male Pin 2 Pin 6: RTS-Rev Switch Pin 1 & RTS Loop Male Pin 3 RTS Loop (Male 3 Pin XLR) Inside ---------------------------------------------------------------------------------- Pin 1: RTS Loop Female Pin 1 & J1 on IFB PCB Black Wire (pin 1) Pin 2: RTS Loop Female Pin 2 & RTS-Rev Switch Pin 5 Pin 3: RTS Loop Female Pin 3 & RTS-Rev Switch Pin 6 RTS Loop (Female 3 Pin XLR) Outside ---------------------------------------------------------------------------------- Pin 1: RTS Loop Male Pin 1 Pin 2: RTS Loop Male Pin 2 Pin 3: RTS Loop Male Pin 3