User`s manual

3.5. Power supply connection

• Check whether the voltage in your mains corresponds to the data on the data plate on the

product.

• Use the supply adapter that is a part of your ISDN GSM GATEWAY Lite package. *

• Check whether you have connected an antenna. If you connect power supply to the gateway

without connecting an antenna, the GSM module transmitter might get damaged.

• Plug the adapter connector in the gateway (see the lower front connectors – fig. 1). After a

moment the green “Power” LED must light up. If the control lamp does not light up the power

supply or the protective fuse in the gateway are defective – please contact the service

department.

*Rack version of GSM gateway has powesuppy on back bus.

Fig.5: Connecting supply

3.6. Connection to your PC

The GSM gateway works in the data mode as a modem: the connector has exactly the

same connection as a normal external modem and it is shown in fig. 6. To connect the PC you

should use a so-called not crossed (1:1) “extending” cable – the same as for connecting a PC to

any external modem. Maximum length of the cable is a few meters. (Connect the cable to the

PC serial COM port.)

Fig..6: Connection of the ISDN GSM gate to a PC via RS232

1 DCD

2 RxD

3 TxD

4 DTR

5 GROUND

6 DSR

7 RTS

8 CTS

9 RI