Pin Pin
number Color Signal name Function Signal name number
1 Input Black RX– RS-422 serial inverting receiver. TX– 1 Output
2 Green RX+ RS-422 serial non-inverting receiver. TX+ 2
6 Output Black TX– RS-422 serial inverting transmitter output. RX– 6 Input
3 White TX+ RS-422 serial non-inverting transmitter output. RX+ 3
5 Output Black 12 VDC common 12 VDC, 500 mA maximum 5 Input
9 Red 12 VDC + 9
4,7,8 Not connected 4,7,8
Figure 3-17 Pendant extension cable – part numbers and signal list
To THC
control
module
To operator
pendant
Pendant extension cable