ONT-2-E4xxxi Multi-service Residential Gateway Series Hardware Installation Guide
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UNRELEASED DRAFT
TM 87-10879 Rev. A
2.2
EPON Multi-service Gateway Series Hardware Interface
This section describes the various hardware interfaces of the ONT.IEEE 802.3ah “First Mile” EPON
Interface
All ONTs in the series feature an a high-speed PON interface to the outside world that is IEEE 802.3ah
EFM (Ethernet First Mile) compliant, supporting bi-directional communications at 2 (2.488) Gbps
downstream and 1 (1.244) Gbps upstream (Turbo-EPON) speeds.
2.2.1
Gigabit Ethernet Ports (1000BASE-T)
All ONTs feature a built-in 4-port 10/100/1000Mbps Ethernet switch that supports four independent
LANs, and features automatic switching between MDI and MDI-X for 10BASE-T, 100BASE-TX and
1000BASE-TX ports. Auto-detection is supported for straight or crossover Ethernet cables.
2.2.2
IEEE 802.11n Wireless Access Point with Support for Secured Access
The ONT-2-E4020iWn and ONT-2-E4021iWn units feature an integrated 802.11n Wireless Access
Point that provides flexible connectivity between wired, wireless, and broadband networks. The Wi-Fi
Protected Access (WPA) and Wired Equivalent Privacy (WEP) features enhance the security level of
data protection and access control via Wireless LAN. The unit is backward compatible with existing and
installed 802.11g and 802.11b equipment. WPS (Wi-Fi Protected Setup) is used for easy establishment
of secured wireless networks.
2.2.3
RF Video Service (RF Overlay)
The ONT-2-E4021i, ONT-2-E4021iWn, and ONT-2-E4001i units support both IP and RF video. The
RF video overlay service on these units enables delivery of both IP and RF video over the same single
fiber as all other services without additional wavelengths.
2.2.4
Voice over IP
ONT-2-E4020i, ONT-2-E4021i, ONT-2-E4020iWn, and ONT-2-E4021iWn units all provide 2 POTS
voice ports with SIP protocol for interoperating with industry-standard VoIP switches. Telephony fea-
tures such as silence suppression, voice activity detection (VAD), comfort noise generation (CNG), echo
cancellation, call waiting, call transferring, and Caller ID (CID) are included. A broad range of codecs
and standard telephones can be used with the ONT. T.38 Fax transmission and Fax pass-through modes
of operation also are supported.
2.3
Supported Residential Gateway (RG) Features
All ONT-2-E4xxxi Multi-service Residential Gateway Series support the following Residential Gate-
way features.
2.3.1
Network Address Translation (NAT)/NAPT (Network Address Port Translations)
NAT and NAPT (Network Address Port Translation) simultaneously allow multiple users to access
outside resources (such as the Internet) with one IP address/one Internet access account.