From the control Box. (powered source). First isolate your electrical power supply).
In the control box, disconnect the terminals to the Battery and disconnect and isolate the power source to the unit by disconnecting and insulating the wires to the transformer, (or unplug the blue/red connectors from the transformer to the PCB board), thus making the unit redundant.
if you have no use for the 9800 code panel, and yours is still in a good useable condition, let me no, as I am looking for one.
Yunus Hack
March 2008