Operator Unit
130--613
Operator Unit
85
Edition: March 11, 2005
3648/130--613.DOC010102
Pin: 1 2 3
Pin: 1 2 3
Plug B1
RS422
Transmit
Plug B2
RS422
Receive
1 TX--
2 TX+
3 GND
1 RX--
2 RX+
3 GND
RS422 connection
Plug B1 = Transmit
Plug B2 = Receive
GND
RS 422 TX--
RS 422 TX+
GND
RS 422 RX--
RS 422 RX+
OPTION
(currently not used)
Figure 79: Making the connections to the plugs for RS422 interface (TX and RX)