User's Manual

GE910 Hardware User Guide
GE910 Hardware User GuideGE910 Hardware User Guide
GE910 Hardware User Guide
1vv0300962 Rev.9-bis3 2013-05-20
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 57 of 87
Mod. 0805 2011-07 Rev.2
An example of RS232 level adaptation circuitry could be done using a MAXIM transceiver
(MAX218).
In this case the chipset is capable to translate directly from 0/1.8V to the RS232 levels (Example
done on 4 signals only).
The RS232 serial port lines are usually connected to a DB9 connector with the following layout: