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EXCEL 100C INSTALLATION INSTRUCTIONS
GSM COMMUNICATION (EUROPE, ONLY)
M20T Safety Precautions
EN1R-0144GE51 R1007
For communication via the Global System for Mobile communications (GSM), a
Siemens M20 Terminal (cellular engine) is required and must be connected directly
to the serial port of the Excel 100C (either front or rear connection). The M20T
translates the Excel CPU data received in transparent mode into the GSM standard.
The M20T behaves like a Hayes-compatible modem connected to the Excel
controller serial port, and it then transmits via GSM like a cellular (mobile) phone.
IMPORTANT
With the M20T, data communication is only possible in 900 MHz GSM
networks. GSM networks operating at 1800 MHz or 1900 MHz are not
supported.
The maximum communication speed is determined by the current GSM standard,
which is 9600 baud. Due to a special transmission mechanism, the effective
communication throughput is lower than 9600 baud – however, this will be notice-
able only when high data volumes are transmitted, e.g. when application download
is performed.
CAUTION
Use of the M20 Terminal on-board aircraft is forbidden.
Use of a Cellular Engine in an aircraft, such as for the purpose of wireless
connection of an aircraft based HVAC system to an XBS central, can endanger
navigation, it interferes with the cellular network and it is illegal. Failure to comply
with this prohibition may lead to temporary suspension or permanent cancellation of
Cellular Engine services for the person who disregards this prohibition and/or to
legal action against said person.
CAUTION
Users are advised to NOT use the M20T in automotive service stations.
Users are reminded of the necessity of complying with restrictions regarding the use
of radio devices in fuel depots, chemical plants and locations where explosives are
ignited.
Additional precautions are as follows:
• When receiving calls on a public highway, such as a cooling control system of a
refrigeration truck being called by an XBS central, the M20T is not permitted to
use "warning" devices which permit the vehicle's horn to sound or the lights to
flash.
• Drivers are advised not to use the handheld microphone or the telephone handset
while their vehicle is in motion, except in emergencies. Use the hands-free facility
to speak only if it does not divert your attention from the traffic.
• Operation of the M20T can disrupt the operability of inadequately protected
medical devices. Please address all questions to a doctor or the manufacturer of
the medical device.
• The M20 Terminal shall not be used within wet environment, such as in public
baths.
• If your M20 Terminal, your SIM card, or both are lost, notify your network operator
immediately in order to avoid misuse.
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