Function
Pin #
Signal
Data 1
RS232/422/485
3
Data 1: RS422 OUT (+) / RS232 OUT
11
Data 1: RS422 OUT (-)
12
Data 1: RS422 IN (-)/ RS485 I/O (-)
9
Data 1: RS422 IN (+) / RS485 I/O (+) / RS232 IN
10
Data 1 Format Select
Data 2
RS232/422/485
6
Data 2: RS422 OUT (+) / RS232 OUT
1
Data 2: RS422 OUT (-)
2
Data 2: RS422 IN (-)/ RS485 I/O (-)
8
Data 2: RS422 IN (+) / RS485 I/O (+) / RS232 IN
7
Data 2 Format Select
Ground
5
GND
Format bias
15
Format bias +12 VDC
GPI
4
GPI 1 input
14
GPI OUT A
13
GPI OUT B
29
Thunder
User Guide
The two data channels can be individually configured to use any of the supported formats,
by using the appropriate Format Select pin (7 or 10):
• Floating for RS-422 or TTL
• Tied to GND (pin 5) for RS-232
• Tied to +12 VDC bias (pin 15) for RS-485
