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Pinout of the X1 service port
The X1 port is designed as a 9-pin D-sub miniature female connector. The female connector
can be changed to male with the supplied "pin" gender changer. As an RS-232 port, the
pinout corresponds to that of a standardized PC connector.
Table 6-7
Pinout of the X1 RS-232 connector
Illustration
This service port is required when a firmware update is necessary for the modem section
MD740-1. The user also has access to diagnostic information over this port.
If a laptop or PC needs to be connected to the X1 port for service work, the standard
SINAUT connecting cable 6NH7701-5AN can be used.
Pinout of the X2 port
The connector of the Ethernet port is designed as an 8-pin RJ-45 jack. The pinout is shown
in the following table.
Table 6-8
Pinout of the RJ-45 Western jack for the Ethernet port
Illustration
8
7
6
5
4
3
2
1
There is no standard connecting cable available in the SINAUT range to connect the
MD740-1 to Ethernet. Use the suitable Ethernet connecting cables (for example IE TP Cord)
from the SIMATIC NET product range (catalog IK PI).
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
Pin no.
Signal name
1
2
3
4
5
6
7
8
9
Pin no.
Signal name
1
TXD+
2
TXD-
3
RXD+
4
-
5
-
6
RXD-
7
-
8
-
Installing and putting a SINAUT modem into operation
6.3 GPRS/GSM wireless modem MD740-1
Signal direction
DCD
Output
RXD
Output
TXD
DTR
GND
DSR
Output
RTS
CTS
Output
RI / T
Output
Signal direction
Output
Output
Input
Input
Remark
Input
Input
Input
Remark
233
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