Installing and putting a SINAUT modem into operation
6.2 GSM modem MD720-3
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
229
Pinout of the X1 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 6-2
Pinout of the X1 RS-232 connector
Illustration
Pin no.
Signal name
Signal direction
Remark
1
DCD
Output
2
RXD
Output
3
TXD
Input
4
DTR
Input
5
GND
6
DSR
Output
7
RTS
Input
8
CTS
Output
9
RI / T
Output
Standard connecting cable for the X1 port
The TIM module is connected to the RS-232 X1 connector (female with pin gender changer).
The following standard connecting cable is available.
Table 6-3
Standard connecting cable for the RJ-232 port
Order no.
Description
Illustration
6NH7701-5AN
Cable for connecting
•
the GSM modem MD720-3 (X1 port) with a TIM 3V-IE
/ TIM 4 (RS-232) for data transmission
or
•
the GSM modem MD720-3 (X1 port) with a PC (serial
port / COM port) for configuration and service
Cable length 2.5 m
*60
PRGHP
7,0
Antenna connector
The jack for connecting an antenna cable with an SMA connector is located at the top of the
front panel.
● Impedance: Approx. 50 ohms