T1/E1 Ports

In centralized SIP trunking topologies, this T1/E1 module preserves voice services in the event of a corporate WAN connectivity failure. In distributed SIP trunking topologies the module preserves dial­out voice services in the event of a local SIP trunk interface failure.

The RJ48C connector looks very similar to an RJ45 connector found on a typical CAT5 cable, but they are very different. A RJ48C connector is fastened on to a STP (Shielded Twisted Pair) cable, not the standard UTP (Unshielded Twisted Pair) CAT-(1-6) cable. A RJ48C connector also uses a different pin out arrangement, voltage level, and line capacitance than a RJ45 connector.