Most of the Challenger hardware is now field programmable. If a KEY is lost or someone leaves without returning their KEY, it can either be defeated or the remaining KEYs can be reprogrammed to render the missing KEY useless. The hardware is available in different models. The following chart provides a quick overview of the Challenger family of products. Usage logs and failed attempts.
Front panel push buttons or through the serial port PC connection.
Any unit can access any other unit in the system. Can chain up to 8 units. With a PC connected to the serial port. Also used for reports. Answers the line and waits for the Touch-Tone password.