Features and functions
Serial data transmission with simple, dedicated commands
Relay function (maximum 10 stations)
Strong error correction function
Receive confirmation acknowledgement
Checking the field strength of target stations
Easy UART interfacing
Low voltage, low consumption current operation
Compact size
Serial data transmission with simple, dedicated commands
The MU-2-R uses Circuit Design’s unique simple, dedicated commands. Setting channels and all other controls can all be performed with commands.
Example 1: Sending the 5 characters “ABCDE”
@DT05ABCDE
Example 2: Changing the channel to 08
@CH08
Relay function (maximum 10 stations)
You can make a relay with a maximum of 10 stations using the route command.
Example of transmitting data (ABCDE) to the target station with Equipment ID EI=04 via relay station 1 (EI=02) and relay station 2 (EI=03).
Strong error correction function
The MU-2-R has a strong error correction function using Reed-Solomon code.
This enables highly reliable communication even in environments where random errors and burst errors typically occur.
However, communication speed is slower than when no error correction is used (with the standard protocol).
* To use error correction, set the communication protocol of both MU-2-R units to the error correction protocol.
1: Standard protocol: The standard protocol that does not perform error correction.
2: Error correction protocol
2-1. No interleaving → Error correction of 0 to 255-byte variable-length data. Data recovery 10%
2-2. Interleaving 1 → Error correction of 0 to 8-byte variable-length data. Data recovery 25%
2-3. Interleaving 2 → Error correction of 0 to 32-byte variable-length data. Data recovery 25%
Receive confirmation acknowledgement
With the command option of ACK request, you can request the target station to return a data receive acknowledgment ‘ACK’ .
Checking the field strength of target stations
You can check the field strength (S) and floor noise level (N) of target stations from the source station with commands.
This is convenient for checking the field status and noise level when embedding the MU-2-R in user equipment and the communication status of the equipment located in the distance.
Easy UART interfacing
Simple interfacing is possible with the UART port of a single-chip CPU or the COM port (RS-232C) of a PC.
Low voltage, low consumption current operation
The MU-2-R can be used for long periods of time using batteries outdoors where no other power supply is available.
Compact size
With a compact size of 36 mm × 26 mm × 8 mm, the MU-2-R can easily be embedded in other equipment.
The MU-2-R is 55% smaller by volume than the MU-1-R.
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