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Connector Assignments
4.5.4 Connector Assignment
The RJ12 socket is assigned with the signals of the serial interfaces COM1 and COM2. Per default
the serial interfaces are designed as RS-232 interfaces.
Optionally COM1 can be designed as RS-232 interface and COM2 as RS-485 interface. This
option is only available with DP-option (CAN-CBX-CPU5201/DP only).
Device connector:
RJ12-Buchse
Pin Position:
Pin
Standard
2x RS-232
Option
1x RS-232, 1x RS-485
(CAN-CBX-CPU5201/DP only)
Signal
Signal
1
GND
Rx/Tx+_S1
(RS-485, COM2)
2
Tx_S0
(RS-232, COM1)
Tx_S0
(RS-232, COM1)
3
Rx_S0
(RS-232, COM1)
Rx_S0
(RS-232, COM1)
4
Tx_S1
(RS-232, COM2)
Rx/Tx-_S1
(RS-485, COM2)
5
Rx_S1
(RS-232, COM2)
GND
6
GND
GND
Signal description:
Tx_S0, Rx_S0,
Tx_S1, Rx_S1...
signal lines of the RS-232 interfaces COM1 and COM2
GND..
reference potential
Rx/Tx+_S1, Rx/Tx-_S1...
signal lines of the optional RS-485 interface COM2
(CAN-CBX-CPU5201/DP only)
CAN-CBX-CPU5201
Hardware Manual • Doc. No.: C.3071.21 / Rev. 1.5
Page 33 of 53
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