User's Manual
Table Of Contents
- Introduction
- Safety Information
- Operation
- Configuration
- Protocols
- Serial Point to Point Operation
- Input Handling
- Output Handling
- WTE Output Control Protocol
- Store Forward Operation
- Installation
- MReX Firmware Upgrade
- Antenna
- Disclaimer
- Manufacturing marking and labels
- Maintenance
- Product End Of Life
- Product Warranty
- Specification
MReX Transceiver User Manual v1.92 Firmware
Protocols
Serial input into and out of the MReX can be formatted differently by selecting an appropriate pro-
tocol.
WT Protocol
The WT Protocol is the default protocol used by WTE products. It allows for a variety of over the
air transport methods (such as POCSAG paging) to be used and a variety of baud rates.
Transmitting Messages
Message format:
WTNNNNNNNABC<SPACE>MMMMM<CR>
Where:
WT are the 2 characters WT
NNNNNNN are 7 ASCII digits from 0000000-9999999
A is the Transport method:
A = POCSAG Alpha
N = POCSAG Numeric
W = POCSAG WTE (WTE 8 bit format allowing all 8 bit characters to be
transmitted)
S = Message Payload sent directly to serial port without transmission. See note
“Serial Only Transport of Messages”.
B is the Level 1-9. Note that POCSAG only supports levels 1-4 which is the same as the
“Beep Level”.
C is the data rate (specified in channel width ranges):
25 kHz Channel Space Settings
0 = 512 Baud 2 Level FSK
1 = 1200 Baud 2 Level FSK
12.5 kHz Channel Space Settings
A = 512 Baud 2 Level FSK
B = 1200 Baud 2 Level FSK
C = 2400 Baud 2 Level GFSK
© WTE Limited, 2020 – Christchurch New Zealand Page 25 of 59