User's Manual

Telit GE863-GPS
Hardware User guide
1vv0300714, Rev. ISSUE#0, - 21/02/06
Reproduction forbidden without Telit Communication written authorization – All Right reserved – Right of modification reserved page 28 of 76
This is because in this way the level translator IC outputs on the module side (i.e. GE863-GPS
inputs) will work at +3.8V interface levels, stressing the module inputs at its maximum input
voltage.
This can be acceptable for evaluation purposes, but not on production devices.
NOTE: In order to be able to do in circuit reprogramming of the GE863-GPS firmware, the serial port
on the Telit GE863-GPS 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-GPS.