PAYLOAD CIRCUIT NUMBERS M20007.1 03/02 Payload Meter II M20-33 Circuit Designation Circuit Description 39F, 39F1...39F5 +18 volt sensor power supply 39FA Pressure signal Right Rear 39FB Pressure signal Left Rear 39FC Pressure signal Right Front 39FD Pressure signal Left Front 39FE Inclinometer signal 39FG Sensor ground 39A PLM lamp output - green 39B PLM lamp output - amber 39C PLM lamp output - red 39D PLM lamp output - unused 39E PLM lamp output - unused 39G +24 volt PLM power 39AA Load light - green 39BA Load light - amber 39CA Load light - red 73FSL TCI 100% load signal - 930E only 73MSL TCI 70% load signal - 930E only 714A Speed signal 714AT Speed signal 63L Body up (gnd = up, open = down) 39H Brake lock (gnd = release, open = lock) 35L1 PLM RS232 RTS (request to send) 35L2 PLM RS232 signal ground 35L3 PLM RS232 receive 35L4 PLM RS232 transmit 35L5 PLM RS232 CTS (clear to send) 35L6 35L7/35L4 Scoreboard 1 to scoreboard 2 35L8 PLM chan 2 TxD 35L9 PLM chan 2 RxD 21C Engine oil pressure (gnd = off, open = run) 21D Alternator R-Terminal (open = off,+24V = run)