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GE863-QUAD
GE863-PY
1vv0300715 Rev. 1 - 19/09/06
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Right reserved page 27 of 79
NOTE: In order to be able to do in circuit reprogramming of the GE863-QUAD/PY firmware,
the serial port on the Telit GE863-QUAD/PY shall be available for translation into RS232
and either it's controlling device shall be placed into tristate, disconnected or as a gateway
for the serial data when module reprogramming occurs.
Only RXD, TXD, GND and the On/off module turn on pad are required to the reprogramming
of the module, the other lines are unused.
All applicator shall include in their design such a way of reprogramming the GE863-
QUAD/PY.
An example of level translation circuitry of this kind is: