User's Manual

9XTend™ OEM RF Module - Product Manual v2.x6x

Interfacing Protocols

The XTend Module Assembly (XTend OEM RF Module mounted to the XTIB-R Interface Board) sup-

ports the following interfacing protocols:

 RS-232

 RS-485 (2-wire) Half-Duplex

 RS-485 (4-wire) and RS-422

RS-232 Operation

DIP Switch Settings and Serial Port Connections

Figure B- erugiF.11 B-12.

RS-232 DIP Switch Seings Pins used on the female RS-232 (DB-9) Serial Connector

* ‘X-CTU’ is soware that can be used to e the module. The soware includes a namin convention

where "GPI" stands for ‘General Purpose Input’ and "GPO" for ‘General Purpose Output’.

Table B-04. RS-232 Signals and their implementations on the XTend Module Assembly 

(Low-asserted sils are distuished by horizontal line ov

er pin name.)

DB-9 Pin

RS-232

Name

X-CTU

Name*

Description Implementation

1 DCD GPO2 Data-Carrier-Detect Connected to DSR (pin6 of DB-9)

2 RXD DO Received Data Serial data exiting the module assembly (to host)

3 TXD DI Transmitted Data Serial data entering into the module assembly (from host)

4 DTR GPI2 Data-Terminal-Ready Can enable Power-Down on the module assembly

dnuorGlangiS dnuorG-DNG5

6 DSR GPO2 Data-Set-Ready Connected to DCD (pin1 of DB-9)

7 RTS

/ CMD GPI1

Request-to-Send /

Command Mode

Provides RTS flow control or enables Command Mode

8 CTS

GPO1 Clear-to-Send Provides CTS flow control

9 RI - Ring Indicator

Optional power input that is connected internally to the

positive lead of the front power connector

DIP Switch seins are read and applied

only while powerin-on.