User's Guide

PRO-FLEX TRANSCEIVER MODULES

USER’S GUIDE

The information in this document is subject to change without notice.

Confirm the data is current by downloading the latest revision from www.lsr.com.

2.7.1 Master / Slave Selection

Master device setup

1. Press the reset button and the user button simultaneously.

2. Release the reset button.

3. Wait until the green LED is lit, then release the user button.

Slave device setup

1. Press the reset button and the user button simultaneously.

2. Release the reset button.

3. Quickly release the user button (Release within 1.5 seconds of performing step 2

above).

2.7.2 Association Mode

In association mode, the red LED will flash rapidly on each board until it has linked with

the other device. At this point, the red LED will go out and the green LED will begin to

flash rapidly for approximately two seconds. Association mode lasts up to thirty seconds

after power up, so the master and slave pair should be powered up at relatively the

same time. If the transceivers link, they will enter the ping pong mode after association

mode times out. However, if they do not link, they will not communicate and the

sequence must be repeated from the point of master/slave selection at power up.

2.7.3 Ping Pong Mode

In ping pong mode, the master and slave boards will flash one or two LEDs with each

packet (slave) or acknowledge (master) received, based on message signal strength.

Refer to Table 2 below for a description of the LEDs versus signal strength. In case

there is a lot of traffic on the default channel, it is possible to change the channel.

Red LED Green LED Signal Strength

OFF OFF None

ON OFF Marginal

OFF ON Good

ON ON Excellent

Table 2 LED Signal Strength Definitions

2.7.4 Changing RF Channels

Note that this can only be performed if boards have been associated.