Campbell COM110A, Руководство пользователя, Страница: 11 / 76

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CS-GSM/GPRS digital transceiver kits
This manual provides the details of how to use the CS-GSM/GPRS digital transceiver kits with
Campbell Scientific dataloggers. This version of the manual covers kits that use the Campbell
Scientific COM110A modem as the communication device. Details in this manual are specific
to this model introduced in October 2012. If you have an older model i.e. not the COM110A
modem version please request an older version of this manual from Campbell Scientific.
Note: The COM110A replaces the COM110. It is functionally equivalent but in a smaller
package.
1. Introduction
The CS-GSM/GPRS kits use the Campbell Scientific COM110A modem that is
designed to allow transfer of data across a GSM (Global System for Mobile
communications) digital cellular phone network. The COM110A modem is a
digital radio transceiver that works on GSM networks; it can be thought of as
equivalent to a ‘phone’ modem, but without the telephone line connection. It is
therefore commonly called a “modem”. It has the following features:

Standard RS232 serial port

Relatively low power consumption

Wide operating temperature range (-40°C to +85

C)

Can be used to collect data from a datalogger at a similar speed to a land-
based 9600 baud modem in good reception areas and faster in GPRS mode.

Closely emulates a standard ‘Hayes style’ telephone modem; suitable for
situations where the datalogger instigates a call back to a base station, e.g. for
alarm purposes

Compact package: 63 x 60 x 22 mm
The CS-GSM/GPRS kits include all the cables and antenna to allow easy use with
Campbell Scientific dataloggers.
A CS-GSM/GPRS kit can also be reconfigured for GPRS data transfer where data
is transferred using the TCP/IP data protocol, often over the public Ethernet. This