Built upon the features found in the highly successful MS-9200UD, the new LS model features Fire-Lites new fast Litespeed polling protocol. Not only does it poll 10 devices at a time, it permits the use of standard unshielded fire wire. The MS-9200UDLS is ideal for commercial, industrial, manufacturing, office buildings, schools, strip malls and other facilities requiring performance-based, sophisticated technology at reasonable cost. Also known as -Fire-Lite Alarms-Honeywell-Us REV 2 MS9600UDLS W/ DACT-2UD - FL-MS9600UDL