This document describes the PTN-4-GC-LW and PTN-4-GCB-LW interface module. These Interface Modules provide four 1Gbps LAN/WAN ports on the front panel (LAN = Local Area Network; WAN = Wide Area. Cisco's family of 10-Gbps symmetrical passive optical network (XGS-PON) Optical Network Terminals (ONTs) delivers flexible, high-performance broadband connectivity for a wide range of fiber-to-the-premises use cases, including residential spaces, Multidwelling Units (MDUs), Small Office/Home Office. Sorry, this document cannot be previewed. Industrial grade core switches with MPLS-TP technology, a variety of interface and port options and provisioning network management software. The Huawei eSFP-1310nm-1000Base-Lx SM is a carrier-grade optical transceiver designed for reliable 1Gbps class single-mode connectivity over 10km links. Port 1 is a gigabit combo port.