A1120/40 Meter Users Manual - Chapter 3 - Communications 1
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Contents
1 SCOPE ....................................................................................................................................3
2 WARNINGS, CE MARKING AND EMC..................................................................................3
2.1 Handling................................................................................................................................... 3
2.2 CE Mark ...................................................................................................................................4
2.3 Guidelines for Compliance with EMC Directive ....................................................................... 5
3 GSM MODEMS GENERAL INFORMATION ..........................................................................6
4 TECHNOLOG GSM MODEM..................................................................................................8
4.1 RS232 Multi-drop Mode........................................................................................................... 9
4.1.1 RS232 Multi-drop Installation Procedure.................................................................................9
4.2 RS 485 Multi-drop Mode........................................................................................................10
4.2.1 RS485 Multi-drop Mode Installation Procedure..................................................................... 10
4.2.2 Amplicon Model RS485 Line Driver....................................................................................... 11
4.3 Configuring the Technolog Modem........................................................................................11
5 ASL A1120/40 GSM MODEM...............................................................................................13
© Elster Metering Limited - M181 001 4A - 5/2007 DRAFT
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