3.5.1.2 Serial-1 (J49) And Serial-3 (J37) Connector
Pin
Signal
Description
Pin Assignment
1
DCD
Carrier detect
2
RXD
Receive data
3
TXD
Transmit data
4
DTR
Data terminal ready
5
GND
Ground
6
DSR
Data set ready
7
RTS
Request to send
8
CTS
Clear to send
9
RI
Ring indicator
1
5
9
6
Figure 16:
Serial Port Connector (DSUB 9 Male)
(Connector: Compona, 329 151-6)
3.5.1.3 Serial-2 (J22) And Serial-4 (J12) Connector
On a PIP with no Serial Port Modules (these are optional), the connectors J12 and J22 are only dummy
connectors with no function.
If the PIP is equipped with RS232 or RS485 modules on the Serial-2 and Serial-4 port, the RS232 or RS485
signals will be available on connector J12 and J22.
With RS232 Module
Pin Assignment
Pin
Signal
Description
1
DCD
Carrier detect
2
RXD
Receive data
3
TXD
Transmit data
4
DTR
Data terminal ready
5
GND
Ground
6
DSR
Data set ready
7
RTS
Request to send
8
CTS
Clear to send
9
RI
Ring indicator
With RS485 Module
Pin
Signal
Description
1
NC
Not connected
2
Rx+
Receive data +
3
Tx+
Transmit data +
4
NC
Not connected
5
GND_isolate
Galvanically isolated Ground
6
NC
Not connected
7
Rx-
Receive data -
8
Tx-
Transmit data -
9
NC
Not connected
1
5
9
6
Figure 17:
Serial Port Connector (DSUB 9 Male)
(Connector: Compona, 329 151-6)
2010 by MPL AG
27
MEH-10126-201 Rev. D
High-Tech • Made in Switzerland
PIP20 / PIP22
Technical Reference Manual
