4-E1-L - S30924-Q201-X101

The 4-E1-L interface module (=IFM) provides four E1 ports for connecting E1 TDM links to the XTran network. 4-E1-L refers to ‘4 ports – E1 – LAN’. E1 links are used to implement synchronous TDM links between two end points. These links typically transport voice and/or data using TDM. This IFM converts the E1 framing from an E1 link into MPLS-TP packets over the XTran network, and vice versa. A packetized TDM service is called a Circuit Emulation Service (=CES). A maximum of 16 CESes can be configured per 4-E1-L module.