3 — INSTALLATION AND WIRING
Curtis Model 3401T – August 2022
pg. 24
I/O PINS
Table 3-3 I/O Pins
Pin
Signal Name
Description
1
SCI Rx
Serial communications — Rx
2
SCI GND
Serial communications — ground
3
CAN_L
CAN low
4
CAN_L Termination
CAN 120Ω termination resistor — low
5
Switch Input1/Analog Input1/Frequency
Input 1
Input for switch, analog, or frequency signals.
6
Switch Input3/Analog Input3/HYD Fault
Code Input
Input for switch, analog, or hydraulic
controller fault code signals.
7
Keyswitch
8
Switch Input5/MOSFET OUTPUT
Switch input or driver output.
9
SCI Tx
Serial communications — Tx
10
CAN_GND
CAN ground
11
CAN_H
CAN high
12
CAN_H Termination
CAN 120Ω termination resistor — high
13
Switch Input2/Analog Input2/Frequency
Input 2
Input for switch, analog, or frequency signals.
14
Switch Input4/Analog Input4/TRA Fault
Code Input
Input for switch, analog, or traction controller
fault code signals.
15
B–
16
B+