Open House H618 4 X 8 Telephone Expansion Hub Telephone Service For 4 Lines With Outputs To 8 Locations Expansion Accessory For Models H611 Or H616 110 Punch-down & Connectors Cat-5 Jumper Cable Included Expansion Jack For Multiple H618 Panels Expansion hub to models H611 and H616 Telephone service for 4 lines with outputs to 8 separate locations Remote power for connected cameras, automatic picture compensation 110 punch-down and connectors, expansion jack Includes Cat 5 jumper cable