ONT G-25A Hardware Installation Manual
309-12201-01 Rev. A: October 2006
Cambridge Industries Group Co. Ltd
1
1.
Product Description
1.1
Introduction
Optical network termination (ONT) model G-25A is an ITU- G.984 compliant device that receive
voice, Ethernet, and video traffic in the form of optical signal from the service provider’s passive
optical network (PON) and transmitted it to the desired format —POTS, data, or video—at
residential or business premises.
Upstream traffic is likewise transmitted to the PON network via the fiber optic cable. A single
optical fiber carries both upstream and downstream traffic.
1.2
Services
Equipped with ITU-T G.984 compliant 2.5G Downstream and 1.25G Upstream GPON UPLINK
interface, ONT G-25A supports the full Triple Play of services including voice, video (Video
Overlay or IPTV/VOD), and high speed internet access.
ONT G-25A is equipped with the following service interfaces:
z
Four 10/100 Base-T Ethernet port for high speed internet access and IPTV/VOD services
z
Two POTS (VoIP) service port for voice services
z
One Analog Video service port for video broadcast services
ONT G-25A has built-in capability for remote management with standard compliance, including
the full range FCAPS functions like supervision, monitoring, and maintenance.
1.3
Features
The ONT incorporates the following features:
z
Single fiber GPON interface with 1244Mbit/s upstream and 2488Mbit/s downstream data
rates
z
Built-in layer-2 switch
z
Advanced data features such as VLAN tag manipulation, classification, and filtering.
z
Analog Telephone Adapter (ATA) function based on SIP (RFC3261), various CLASS services
supported - Caller ID, Call Waiting, Call Forwarding, Call Transfer, etc.
1
z
5 REN per line
z
Multiple voice Codec
z
Premium Service and Basic Service for Video Overlay
z
Multiple LED indications for alarming and maintenance
1
These services may be unavailable within a specific carrier network and may require additional subscription.
