77The left and right brake pedals are connected mechanically to the Brake Transmitter transducer on the FO rudder pedal mechanism.
Brake Transmitter Tranducer, connected to the brake pedals by rods; Image by David Cheilan
XMTR UNIT BRK PEDAL (P/N C20 215000)
Pinouts
Right Brake G/M(wiper)/U or H/P(wiper)/Y
Left Brake Y/C(wiper)/H or K/B(wiper)/V
Reference ASM 32-42-01
Soarbywire 