User's Guide

TW223 User guide.docx 4 of 6
MDT and Repeater Configuration
All MDT and Repeaters come from the factory with a default factory-set configuration; there is
no user changeable setup. MDTs need only be connected to the meter and turned on. A
number of different MDTs are available, our most popular being a single pulse input unit with a
one-hour transmission interval. See our web site for other variations available.
MDT devices come from the factory in a powered off state. They can be powered on using a
hidden button under the Tehama Wireless logo.
The big circle in the photo below shows where the hidden button is located on the enclosure. It
may take a few times to get the feel of the button, but an LED to the left gives you feedback
when the button is pushed.
The repeaters will automatically power on when power is applied. Press the pushbutton on their
front panel to activate the LEDs as they will turn off eventually to save power.
The information delivered by the LEDs and the Repeaters are identical and described below:
Turn ON or Off (MDT only):
- Press & hold button until LED blips off, then release.
Power-up LED Flashing:
- Listening for DCAP or Repeater: LED flashes slowly
- Trying to Connect to DCAP: Flashing changes from slow to fast
- Successful Connection: LED stays solid for 10 seconds.
- If NOT successful, LED goes out without the 10 second on
Check the status of an MDT or Repeater by tapping the button
- Unit is OFF: Two flashes after button is released
- Unit is Asleep and NOT connected to Network: One flash only
- Unit will wake up within one hour and try to re-connect to
Network. This is usually an indication of poor placement or
inadequate Repeater coverage.
- Unit is Connected and operating normally: LED on for 10 seconds
- Green is good link, Orange an OK link, Red is poor link
Reset Count (MDT Only): Press and hold button until power-up
flashing sequence starts (12-15 seconds)
MDT to Meter wiring
Refer to our many wiring diagrams on our web site for wiring instructions from the many
different meters available.