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8
• Digital Part
Processor:
Programming:
Program Mem.:
Data Memory:
EEPROM Memory:
Serial Link:
• Power Supply
Supply voltage:
Consumption:
• HAYES Commands:
The user can program all the parameters. A Windows programming software
is supplied "on-line" with documentation support. (See AT commands).
Examples of Hayes commands:
Serial:
Serial link rate, parity, bit count, stop bit count, Serial Time-
out, ...
Radio:
Channels table selection, retry count, ...
Mode:
Point to Point, Network, Stand-by, etc.
• Performance range
Length of com.:
Obstacles Impact:
FLASH Atmel Micro controller
Upload and download with a PC through the RS232
serial link and a specific interface (Demo Kit D900).
8 Ko of FLASH
512 bytes of RAM for stack and data
512 bytes for the HAYES parameters (registers S).
2400 to 38400 Baud, NRZ format, 5 volts TTL level.
5V monitored (± 5%).
Receive
Transmit
<40mA
<80mA
164 to 328 Feet (50 to 100 meters) in difficult
environment (buildings, reinforced concrete)
984 to 1,312 Feet (300-400 meters) in open
environment (Ground level).
3,281 Feet (1 Km) in view and in height (example:
between buildings)
Walls, trees, obstacles can strongly reduce the
range
Sleep
<5mA
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