Application Notes; General Notes; Getting Started & Installation - Siemens M20 Terminal Technical Description

Siemens Information and Communication Products
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Application notes

1) The Cellular Engine M20 may only be used in approved configurations or with accessories (SIM card reader, handset)
that have been explicitly approved. Information about approved configurations and accessories that have been appro-
ved for use with the M20 is provided in this document. This information is also available in the appendix to the EC
TYPE EXAMINATION CERTIFICATE or from your local distributor.
2) The CE mark on the Siemens M20 with GSM-IMEI must be visible from the outside without the use of any tools,
even if the M20 is integrated and/or built into an application (visibility through cooling slits is sufficient). Alterna-
tively, an additional label can be placed on the outside of the application or if there is not enough room, it can be
included in the operating manual with the wording "This application uses integrated GSM Terminal Equipment with
the following registration: CE xxxx, IMEI xxxx."
3) An earthed wristband should be worn when handling the M20/M20 terminal components to protect against electrosta-
tic charge. Avoid touching open contacts to prevent injury by electrostatic discharge.
8.1

General notes

• A warning symbol from TÜV (German Technical Inspectorate) should be applied to the application's identifi-
cation plate, advising the user to read the instruction manual before powering up the application.
• The following services can only be implemented if they are enabled for the subscriber. Multi-numbering: each
of the services has its own calling number.
1) Calling number for speech and SMS
2) Calling number for 4800 Bit/s data transfer (and SMS)
3) Calling number for 2400 Bit/s data transfer (and SMS)
• 3 V SIM cards are available from different network operators and service providers.
• A sticker with the IMEI number is supplied with the M20 to be applied on the outside of the application. In the
event of M20 module service, a new sticker with the new IMEI number will be supplied.
• Two stickers with the logo "Cellular Engines by Siemens" are supplied with each M20 (transparency/black and
transparency/yellow 24 mm x 24 mm). See below in the lower left corner.
• SIM cards should only be inserted or removed when the M20 is not supplied with power.
8.2 Getting started & Installation
Using Hyperterminal or Procomm Plus for controlling the M20T:
8.2.1 Connecting the M20T
1) M20 Application, M20 Terminal or M20 D-Box
2) SIM card (activated, M20/M20 Terminal can only be activated by 3V SIM cards)
3) 9-pin serial cable for connection between PC an e.g. M20 Terminal
4) For speech transmission: Handset: speaker and microphone
5) Antenna cable with antenna and fitting connector for connection with M20 Terminal´s FME female antenna plug.
6) GSM Antenna
7) Power supply with ignition circuit, Pin 4 of the 6 pole Western Plug can be switched to >3V for minimum 1 second
(with the M20T use supply voltage for ignition).
See also following fig.
"Example circuit for IGNITION"
8.2.2 Example circuit for IGNITION
The Ignition signal is used to start the M20. Unlike the M1 the Ignition on the M20 can be activated simultaneously with
the Power connection. For switching off the M20 with AT^SMSO ignition must be returned to low state!
Version 8 dated 15.03.00
for details.
Application notes
A
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