Connecting The Device And Switching On The Device - Siemens SIMATIC NET MODEM MD720 System Manual

Gprs/gsm modem
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3 Connecting the device and switching on
the device
Connectors and LEDs
1
Connector for supply voltage DC 24 V
2
Interface X1 (RS232) for the application or a service PC
3
SET button
4
LEDs: S (Status), Q (Quality), C (Connect)
5
Antenna connector
6, 9
Fixation for top rail mounting
7
SIM card holder tray
8
Button to access the SIM card
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3
14

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