Connector Assignment
Installation and technical data
CAN-PCI/360
Rev. 1.3
21
5.2.3 Option: RS-422, RS-485, TTY-Active/Passive
Alternatively to the RS-232-driver two base strips can be equipped optionally. These base strips have
been designed for piggybacks, which are available with RS-422-, RS-485-, TTY-passive or TTY-active
interfaces.
The assignment of the 10-pin post connector when using piggybacks is represented in the following
table. The signal names used in the table correspond to the physical data directions as seen from the
CAN-PCI/360, that means that the Tx-signals are represented as data outputs and the Rx-signals are
represented as data inputs.
Connector pin
Signal assignment
10-pin post
connector X601
9-pin DSUB-
socket in second
slot cover
RS-422
RS-485
TTY-
passive
TTY-
active
1
1
-
-
-
-
2
6
-
-
-
-
3
2
Tx+
Rx/Tx+
Tx+
Tx-
4
7
Tx-
Rx/Tx-
Tx-
(GNDA)
5
3
-
-
(I1+)
Tx+
6
8
GND
GND
(I2+)
Rx+
7
4
Rx-
1*)
(for Rx/Tx-)
Rx-
(GNDA)
8
9
Rx+
1*)
(for Rx/Tx+)
Rx+
Rx-
9
5
GND
GND
GND
GND
10
-
-
-
-
-
1*) In RS-485 operation these pins are connected to a terminating resistor network which is situated on the piggyback.
( )
The signals given in brackets have been assigned, however, they are not required for operating the interface.
