Appendix A
Changing Jumpers and Channels
You may want to change the channel on the Base Station or you may want to set the unit to use a Serial Y Cable. To do so, open up the case.
Turn your Base unit upside-down and unscrew its single Phillips screw. If you don't completely remove the screw you can use it as a lever to pull up on the cover, otherwise insert a fingernail, credit card edge or small screwdriver blade into the gap between the base and side of the case. Gently use it as a lever to lift up the edge of the base, then grasp the edge of the base and open it outward like a door.
This exposes the reader's circuit board, as shown on the next page. When you've finished examining or changing jumper settings, put the reader case back together by reversing the steps illustrated on this page.
To change the Channel (0-9 for USA and Canada), unplug the power supply and use a small flat head screwdriver to move the rotary switch shown below to the number of the channel you desire. Now simply put the case back together and plug in the power supply. You should see channel number set+ 3 green flashes on the base's LED; i.e. channel 0 setting will flash 3 times -- channel 6 setting will flash 9 times.