ONT-2-E4xxxi Multi-service Residential Gateway Series Hardware Installation Guide
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UNRELEASED DRAFT
TM 87-10879 Rev. A
The IEEE 802.3x-compliant gigabit Ethernet 10/100/1000Base-T interfaces auto-detect whether the
connecting cable is a straight-through or cross-over type and configure themselves accordingly. In ad-
dition, the interfaces auto-negotiate (by default) to match the speed of the remote device.
The link length can be no greater than 100 m (≈328 ft), which is the Ethernet standard.
3.7
EPON SC/APC Fiber Optic Network Interface
The
ONT-2-E4xxxi Multi-service Residential Gateway Series
supports one EPON optical interface via an
SC/APC connector located on the left-side rear panel for the Network Interface (NI) connection. This in-
terface accepts a single mode fiber terminated with an SC/APC connector. The SC/APC PON connector is
smartly enclosed by a small plastic removable cover that, when snapped into place, protects the connector
from becoming dislocated or separated from the ONT. See Figure 3 for the optical fiber connector location,
where the fiber is shown routed through the smaller aperture for wall mounting.
Figure 3 SC/APC Optical Fiber Plugged into Optical Network Interface
A small screw located in the unit holds the cover in place.
The network connector and network EPON fiber
must be wired to the premises by the service provider or contractor in an appropriate location before the
EPON Multi-service Gateway ONT can be installed.
The ONT-2-400i supports an UPC connector, not an APC connector. UPC connectors are blue in color.
3.8
Voice Telephony Interfaces (Standard Telephone)
The ONT-2-E4020i, ONT-2-E4021i, ONT-2-E4020iWn, and ONT-2-E4021iWn provide two independent
standard analog voice ports. The voice ports are commonly known as Plain Old Telephone Service (POTS)
ports. These connections provide toll quality voice through a Voice over IP (VoIP) connection. Refer to
Figure 2 for the location of the telephone connectors, labeled “Phone1” and Phone2.” The voice ports on the
ONT use RJ-11 modular jacks, with one line per jack, wired in a standard two-wire configuration.
You can attach a standard household telephone to these ports to make voice calls. Call setup and signaling is
provided via the Session Initiation Protocol (SIP) for interoperating with industry standard VoIP switches,
and analog voice data is converted to IP packets for transmission over the service provider’s network. The
ONT-2-E4020i, ONT-2-E4021i, ONT-2-E4020iWn, and ONT-2-E4021iWn support a wide variety of te-
Note