3 609 929 721/1.2 | KE300
5 Initial Operation
5.4
Interface X 12: RS232/20 mA
The interface X 12 is intended for connecting
data collection terminals, bar code readers,
etc.
Functionality depends on the present func-
tional scope of the firmware. This is de-
scribed in the system handbook.
The 25pin plug provides the connections for
an RS232 or 20 mA interface. It is only pos-
sible to use one of these interfaces. Determi-
nation of the used interface arises from the
wiring of the pinned-up plug.
13
25
Fig. 5:
SUB-D-plug, 25pin (male)
Pin Signal
Description/Function
1
NC
2
TxD
RS232 Send
3
RxD
RS232 Receive
4
RTS
RS232 Request Send
5
CTS
RS232 Enable Send
6
NC
Not Connected
7
ISO_GND Reference Potential Interface
8
NC
Not Connected
9
10 V
Supply for 20 mA Interface
in
10
10 V
Supply for 20 mA Interface
out
11
-
-
12
Rx–/Rx+
20 mA Receive
13
Tx–/Tx+
20 mA Send
14
-
-
15
NC
Not Connected
16
NC
Not Connected
17
NC
Not Connected
18
-
-
19
-
-
20
DTR
RS232 Data Terminal Ready
21
NC
Not Connected
22
Rx+
20 mA Receive
23
Tx+
20 mA Send
24
ISO_GND Reference Potential Interface
25
ISO_GND Reference Potential Interface
Table 5:
Electric Drives and Controls | Bosch Rexroth AG 15/52
1
14