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ONT-2-E4xxxi Multi-service Residential Gateway Series Hardware Installation Guide
TM 87-10879 Rev. A UNRELEASED DRAFT 7
Chapter 2 Overview
This chapter provides an overview of the supported features, product specifications, and system re-
quirements for the ONT-2-E4xxxi Multi-service Residential Gateway Series, which comprise the
ONT-2-E4000i, ONT-2-E4020i, ONT-2-E4021i, ONT-2-E4020iWn, ONT-2-E4021iWn, and
ONT-2-E4001i models.
2.1 Overview of ONT-2-E4xxxi Multi-service Residential Gateway Series
The ONT-2-E4xxxi Multi-service Residential Gateway Series of Optical Network Terminals provide
basic and optional features supporting current and future business and consumer connectivity needs for
Data, IPTV including High-definition TV, Voice over IP (VoIP), and Triple-Play services. All ONTs in
the family support the latest Residential Gateway features, including high-speed EPON and
Turbo-EPON communication to the Cable Operator or ISP WAN network, firewall security, efficient
provisioning, and up to 1 Gbps (1000BASE-T) connectivity to four independent LANs on the customer
premise. Optional features for Wi-Fi, Voice over IP, and RF Video Overlay are also available.
The ONT-2-E4021iWn is the full-feature EPON ONT Residential Gateway, featuring a 4-port RJ-45
10/100/1000BASE-T Gigabit Ethernet switch, 2 POTS ports for VoIP, 1 RF Video Overlay port, and
IEEE 802.11n wireless (Wi-Fi) access. The ONT-2-E4020iWn is the same basic unit as the E4021iWn
without the RF Video; the ONT-2-E4021i provides RF Video without Wi-Fi; the ONT-2-E4020i has no
Wi-Fi and RF Video; the ONT-2-E4000i only provides the four 1000BASE-T ports.
See Table 1 for a brief overview of interfaces, ports, VoIP, RF video, Wi-Fi, data, and IPTV services on
each EPON Multi-service Gateway ONT. The various features are described in subsequent sections of
this guide.
Table 1 EPON Multi-service Gateway ONT Supported Services and Features
Multi-service
Gateway ONT Gigabit
Ethernet
(GE) Inter-
faces POTS Port
VoIP Ser-
vice RF Overlay
Port
RF Video
Service Wi-Fi
Service
(Wire-
less) Data and
IPTV Residential
Gateway (RG)
Features
ONT-2-E4000i 4 0 NA NA X X
ONT-2-E4020i 4 2 NA NA X X
ONT-2-E4021i 4 2 1 NA X X
ONT-2-E4001i 4 NA 1 NA X X
ONT-2-E4020iWn 4 2 NA X X X
ONT-2-E4021iWn 4 2 1 X X X