Serial Port-8 To Module Gpio Configuration; Location Of Resistors - Connect Tech Multi-I/O User Manual

Connect Tech - Xtreme/Multi-I/O - Users Guide

Serial Port-8 to Module GPIO Configuration

When Uart Serial Port-8 is routed to the Socket Module-2 (see the "Serial Ports Enable / Disable" section), the
TXD and RXD signals from the serial port are routed through zero ohm resistors to 3 of the GPIO pins on the
Socket module as indicated here:
Signal
TXD
RXD
The appropriate resistors need to be installed to connect the 2 serial signals to appropriate GPIO pins on the
socket module.

Only 2 resistors should be installed (one for each serial signal).

Do NOT install resistors so that both signals go to the same GPIO.

It is best to consult with CTI Technical Support before

Location of Resistors

The resistors are located on the TOP side of the PCB, near the center of the PCB. They are 0402 sized
components.
Document: CTIM-00116
Revision: 0.02
GPIO-0 GPIO-1 GPIO-2
R82 R80 R78
R83 R81 R79
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0.02
Date: Apr. 14, 2015