User's Manual

Table Of Contents

MReX Transceiver User Manual v1.92 Firmware

WTE Output Control Protocol

Introduction

This section describes how to control the outputs of WTE Products via transmission payloads.

The WTE protocol needs to be able to switch many outputs on, and many off in a single message.

Receivers need to be able to be uniquely addressed, and in a manner that is maintainable.

It may be likely that the payload is transmitted as part of a paging payload, such as POCSAG or

FLEX, but ultimately the transport method is irrelevant as long as it is capable of transmitting the

characters used by the protocol.

Once an output has been activated, it will remain in its activated state for its configured period.

This may be many seconds, or permanently latched.

The control message can be placed in any position in the message payload, and there can be mul-

tiple control messages in the same payload.

Format

The payload of a message must fit the following format in order to operate the unit outputs. Note

that this is a general format used by WTE products that may have many more than a single output.

[[ID]EEEE-DDDD]

Where:

[ is the character ‘[’

] is the character ‘]’

ID is the UNIT_ID that has been programmed (e.g “01” or “Unit_A”).

E is the output to enable (1 for the MReX).

- is the hyphen character ‘-’ All digits following the ‘-’ are outputs that are disabled

D is the output to disable