NEXPEED NBG440 User’s Manual
NexComm Systems, Inc. 5 PAGE
Introduction
Introduction to the NEXPEED NBG440 router
Overview
Implementing international standard-based ITU-T/ETSI G.SHDSL transmission (G.991.2) with
robust IP routing, concurrent bridging functions and built-in 4 port Ethernet switch, NBG440 is
perfect for mission-critical applications such as compus networking, multimedia services and
network gateway access.
Interoperating with NexComm’s Ethernet-based SHDSL Mini-DSLAM NS4024G, the NBG440
provides a cost effective alternative of Ethernet networking of Point to Multi-Point application for
SMBs that have multiple buildings in a campus-like environment. By leveraging Tag-based VLAN
and STP capabilities of the NBG440, the campus ensures a highly secure and reliable network. By
utilizing the Ethernet-based QoS capabilities the campus can take advantage of voice and video
applications. This application requires no new infrastructure, and results in a low cost, plug and
play solution with low management overhead.
Features
SHDSL is a technology based on the G.SHDSL(G.991.2) standard. NBG440 supports a packet-
based network technology that allows high-speed transmission over twisted-pair copper wire
between an Internet service provider central office and a customer site or on local loops created
within a building.
The features are as follows:
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Supports 4 ports of 10/100M Ethernet LAN of automatic sensing.
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Supports ITU-T G.991.2 (G.SHDSL) standard.
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Supports identical user data rates in both upstream and downstream directions (symmetric
technology) and vary from 200 Kbps:
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up to 2.3 Mbps in two-wire(one pair) mode
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up to 4.6 Mbps in four-wire(two pair) mode
