CODE READER MAH 200
D -5
QUICKSTART GUIDE
APPENDIX D – BLUETOOTH RADIO OVERVIEW (CON‘T)
Radio Range and Transferring Data
The MAH 200 radio is a Class 1 device. If connected to another Class 1 device the unit has
roughly a 300 foot line of sight operating range. If connecting to a Class 2 or Class 3 device, the
operating range may drop to match the lower range. Once a unit is connected, the application
software on the host must be open to receive data.
When the MAH 200 detects the radio is out of range, the MAH 200 will store data on the reader’s
non volatile memory. The reader will continue to try and send data until radio is back in range.
Once the data is sent the data will be erased from the units memory. If the radio cannot connect in
90 seconds, it will give an error beep. The reader will continue to try and connect until it has
reached the programmable radio time out setting.
The MAH 200 Bluetooth protocol allows for two (2) forms of communication:
1. One Way Mode - Defined as one way communication between the reader and host. One Way
mode only recommended when connecting to a device well within itse specified range or if
connected to a device without an operating system (i.e. printer). There are two settings in this
mode:
• Max Range (Default) - Greater range but data reliability is lower
• Max Reliability - Limits range but reliability is improved
RF One Way Mode (Max Range)
RF One Way Mode (Max Reliability)
Note:
While robust, One Way Mode doesn’t guarantee data integrity and you may have data
loss.
2. RF Two Way Mode - This is two way communication between the host and reader. This
requires the implementation of software at the application level.* The reader receives confirmation
via packet protocol verification and is 100% reliable. Data will be automatically retransmitted if
necessary.
RF Two Way Mode
* Note: You will need to install application software that supports packet communication to
operate in RF Two Way Mode. Omnitron offers a Windows or Pocket PC version of software
called CodeXML Router - Bluetooth Edition (BE) that provides for end-to-end Bluetooth
handshakes that eliminate out-of-range data loss. CodeXML Router - BE also offers Bluetooth
to keyboard wedge communication for applications that require keyboard port input.
If you are using the CodeXML Bluetooth modem, you must use RF Two Way Mode.
