JLG G12-55A AccuPlace Service Manual - Manual (Page 130)

Electrical System
9.12 G10-55A & G12-55A AccuPlace
c. UGM Communications/Power/Ground
UGM
Connector/Pin
Description Signal Level Description/Purpose
J1-4 Rear Stab Valve Gnd Common ground for the two rear stabilizer
coils; no current feedback
J1-28 Analyzer PWR Analyzer Power
J1-29 Analyzer RS232 Receive Analyzer Communication
J1-30 Analyzer RS232 Transmit Analyzer Communication
J1-31 Analyzer Return Analyzer Ground
J3-3 Boom Angle Right Sensor
Ground
B- Analyzer Ground
J3-12 Boom Angle Right Sensor
Power
+5V
regulated
J4-24 V
bat
for Panel Switches B+ (V
bat
) UGM provides power for panel switch inputs
J4-25 Mini Joystick Switch Power B+ (V
bat
) UGM provides power to Mini Joysticks to
confirm out-of-neutral state
J4-32 Lamp Gnd GND Common lamp return
J7-3 Controller Power Enable B+ ( Power Enable for UGM Logic Circuitry
J7-6 CAN1 Terminator 1 Jumper to J7-17 for 120 ohm termination
J7-13 CAN1 HI
J7-17 CAN1 Terminator 2 Jumper to J7-6 for 120 ohm termination
J7-18 CAN1 Shield
J7-19 Cab Joystick Ground B-
J7-24 CAN1 LO
J7-25 Mini Joystick Ground B-
J7-27 Mini Joystick Power +5V
regulated
J7-34 Cab Joystick Power B+ (V
bat
)
J8-1 B- B- Ground for UGM
J8-2 Switched B+ B+ (V
bat
) Power to UGM; fused to 25A via F8
J8-4 INCOVA Power B+ (V
bat
) Power Enable for UGM Logic Circuitry
J12-3 CAN2 HI Cab Joystick on CAN2
J12-4 CAN2 LO
J12-5 CAN2 Shield
J12-6 CAN2 Terminator 1
J12-7 CAN2 Terminator 2