Both the HTM-408S and the HTM-408SRJ support the bridged distribution of any combination of up to four telephone lines to eight locations, with the addition of Mode-3 socket providing line seizure capability for the DAS security system. The HTM-408S is a punch-down module, where as the HTM-408SRJ is a patching module. Both of these units are easily expandable using additional HTM-408S or HTM-408SRJ modules. The modules are designed to be installed and used with the 400 and 600 series Hills Home Hub structured cabling system. Distributor: Direct Alarm Supplies Contact: 61 2 9717 5222