Users Manual Part 1

FOX3-2G/3G/4G HARDWARE MANUAL VERSION 2.2.5
This confidential document is a property of Lantronix and may not be copied or circulated without previous permission.
Page 32 of 48
4 TxA_1 Output
(Serial Port 1) Serial port (transmit data) for direct connection
to the host PC (transmitting history data, output GPS protocols
and others). If not used leave it open.
V24, ±12 V
5 SCL Output
I2C bus interface - Serial Clock line – the signal used to
synchronize communication between the master and the slave.
6 SDA
Input
/Output
I2C bus interface - Serial Data line – the signal used to transfer
data between the transmitter and the receiver.
Table 9: Description of the 6-pin (2x3) connector