Asl A1120/40 Gsm Modem - Elster A1140 User Manual

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ASL A1120/40 GSM MODEM

Features
• Modem compatible communications rates up to 9600
baud
• Error correction including V110 (for ISDN/GSM
connected host
• IP connectivity for AMR using low cost GPRS services
• SMS AMR capability with programmable read time
and remote diagnostics
• Industry standard RJ12 plug interface flying lead
• Host powered
• LED indication for modem status, network status and signal strength
• Standby mode with current drain of 50mW
• Typical average operating power of <500mW
• Local or remote antenna
• RS232/RS485 multi-drop option
Modem Installation
The modem connects to the meter in exactly the same way as the Technolog modem by using
standard At Hayes commands
The ASL modem communications parameters can be configured using an SMS text message
via a mobile phone.
The initial settings will depend on whether the meter is configured for a Standard Data to Read
or Data Stream Mode.
Standard Data to Read Mode
Enter Bits Per Second = 9600
Data Bits = 7
Parity = E
Stop Bits = 1
Flow Control = None
Inserting the SIM
The SIM should be set to the Service Provider settings detailed in Section C2, General
Information (About the SIM).
SIM Card Type
Carefully slide the SIM into the SIM slot
Communications
Data Stream Mode
Enter Bits Per Second = 9600
Data Bits = 8
Parity = None
Stop Bits = 1
Flow Control = None
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