3 — INSTALLATION, WIRING AND CONFIGURATION
pg. 15
Curtis Model 3150R – Oct. 2022
I/O CONNECTOR
The mating connector is an 8-pin Mini-Universal MATE-N-LOK housing from TE Connectivity.
The front is sealed to IP67. The rear is sealed to IP65 for electronic components and IP40 for the
connector. You can increase the connector’s protection to IP54 by using the parts listed in Table 3-2.
The following tables list the TE Connectivity parts for IP40 and IP54 protection.
Table 3-1 Mating Connector Parts—IP40 Protection
Part
TE Connectivity Part Number
Connector Housing
770579-1
Terminal (18–22 AWG)
770904-
X
Table 3-2 Mating Connector Parts—IP54 Protection
Part
TE Connectivity Part Number
Connector Housing
794821-1
Terminal (18–22 AWG)
770904-
X
Interface Seal
794772-8
Single Wire Seal or Gang Seal
794758-1 or 1586359-8
Cavity Plug Seal (for unused
terminal positions)
794995-1
I/O PINS
The following table describes the I/O pins.
Pin
Signal Name
Description
1
CAN Low
CANbus low signal
2
CAN High
CANbus high signal
3
B−
Battery negative
4
B+
Battery positive
5
SCI Tx / SW1
Serial communication interface Tx or Switch 1
Note:
Some models use pins 5–6 for a serial
port, other models use these pins for Switch 1
and Switch 2.
6
SCI Rx / SW2
Serial communication interface Rx or Switch 2
7
KSI
Keyswitch
8
Lift Lockout Output / SW3
Lift lockout output or Switch 3