GE864-QUAD Automotive V2 Hardware User Guide
1vv0300840 Rev.0.1 24/11/09
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 36 of 65
An example of level translation circuitry of this kind is:
The example is done with a SIPEX SP3282EB RS232 Transceiver that could accept supply voltages
lower than 3V DC.
In this case Vin has to be set with a value compatible with the logic levels of the module. (Max
2.9V DC). In this configuration the SP3282EB will adhere to EIA/TIA-562 voltage levels instead
of RS232 (-5 ~ +5V)
