MReX-MB1 Transmitter User Manual v3.16 Firmware
Operation
When first installing a coin cell battery, the LED will slowly flash for 5 seconds. While the LED is
slowly flashing on and off the MReX-MB1 will accept configuration commands if connected.
The MReX-MB1 will illuminate the red LED when the button is pressed and remain lit until the
programmed transmission has been sent. If the button is pressed, and held until after the red LED
turns off, the MReX-MB1 will begin to flash on and off for 5 seconds, allowing the unit to accept
configuration commands.
Prior to the normal long LED illumination after the button press the MReX-MB1 may:
•
Flash once briefly. This indicates that the battery has less than 30% battery capacity
remaining.
•
Flash rapidly for up to 4 seconds. This indicates that the channel is currently busy.
Under normal operation, on start-up there is a sign-on message sent out the 3.3V TTL programming
serial port two seconds after a battery is inserted. The sign on message indicates the firmware
revision, serial number other software related information.
Commands may be issued and firmware updated from this 3.3V TTL serial port. Messages and
frequency can be preconfigured on order, or a serial may be purchased for qualified end user
configuration.
Replace battery if LED does not light after pressing button or if messages are not received.
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