The Elk-M1XIN is a 16-Zone Input Expander that adds 16 EOL supervised hardwired zones to the M1EZ8 or M1Gold control boards.The Elk-M1XIN connects to a 4-wire data bus. Up to twelve Elk-M1XIN Expanders can be used at once, with the potential for reaching a total of 208 zones. Also known as -ELK M1XIN ETHERNET PORT DATA BUS EXPANDER INTERFACEMain Features16 EOL Resistor Supervised Hardwire ZonesOperates on the 4-Wire Data BusDIP Switch Address SettingsPlug-In Terminal StripsStatus and Diagnostic LEDOn-Board EOL Bus Termination JumperVertical Mounting using ELK-SWG Glides(included)General InformationName: ELK M1XIN 16 Zone Input Expander, ELK Products, Inc, ELKCategory: Elk Products Inc., Intrusion & Smart Home, Alarm Control Panels & Keypad, Expanders & V-Plex AccessoriesUPC Code: 762158550171Country of origin: United States. Country of origin is subject to change.