Mitsubishi Electronics MAM-AM6, MAM-GM20, MAM-GM24 Connecting the GSM antenna only GM series

Connecting the GSM antenna (only GM series) Installation and Mounting

3.4Connecting the GSM antenna (only GM series)

First of all find a suitable location for mounting the GSM antenna outside of the control cabinet. In order to find a suitable location with a good reception quality you may use the software MX Mitsubishi Alarm Editor to display the signal quality.

Screw the antenna plug into the antenna socket on the front of the modem.

027954541034	10-30VDC,mit2xRs232Mitsubishi max +6 Alarm .0.7AI/Os Modem
	GSM

					Antenna
	Service
		Process	Line	Data out	Modem Mode
	Power
		SIM-Card		Push
-	+	COM2 (RS232)		COM1 (RS232)

Fig. 3-6:

When fitting the antenna plug ensure that it is seated correctly. It should be possible to turn the threaded nut easily.

NOTE

Standard GSM antennas with an FME plug can be used. The GSM antenna is not supplied with the modem and can be ordered separately.

Ensure that you buy an antenna with the correct frequency range for your mobile communi- cations network. Further information on this is provided in the Appendix of this manual in section 10.4, Mobile communication networks in Europe, USA and worldwide.

If the length of the antenna cable is not sufficient for your requirements you can use a suit- able extension cable purchased as an accessory from a GSM outlet. Take into account the attenuation of these cables that will reduce the antenna gain and observe the relevant speci- fications of the manufacturer.

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