*   4 zone inputs (8 zones with zone doubling) + 2 keypad zones 
*   2 partitions 
*   49 user codes 
*   256 events buffered 
*   1 PGM output 
*   950mA switching power supply 
*   Supervised bell output, auxiliary output and telephone line 
*   2-wire smoke detector input option (input 3) 
*   Serial or parallel wiring for zone doubling connections 
*   Master Code Lock: cannot change or delete the Master Code or User Code 01 
*   Supports pager reporting 
*   Closing Delinquency Timer: transmit a report when last arming exceeds timer 
*   Auto-test report can now be set in hours or days 
*   Includes 20cm x 25cm x 8cm (8" x 10" x 3") metal box