Uniform IEI programming & wiring Door position input Request to Exit input 2 Form C SPDT relay outputs default for access control function Expansion relay module (2000-8EX) 8 additional outputs for elevator and other applications Sounder for key press and alert conditions All outputs can be programmed independently if required Option for secure installation with control electronics in protected area Widest array of user type options including single use and two man rule 10-30 VDC and 12-24 VAC operation Over-voltage protection for reliable operation Programmable Wiegand formats Works as a reader for all IEI and Wiegand access systems 2000-8EX Output expansion module for 2000 series keypads-adds 8 control relay outputs to 2000 series access control keypads. Receives power from and installs remotely from the keypad in double gang box or attaches to double gang plate. Requires 6 conductor shielded cable for interconnect. Includes power LED and individual LEDs indicating status of each of the 8 relay outputs