To deliver triple-play services to the subscriber in Fiber-to-the-Home or Fiber-to-the-Premises application, the GPON RGU (Residential Gateway Unit) DT-GU+4GE+2POTS+CATV SF RF+WF incorporates interoperability, key customers’ specific requirements and cost-efficiency.Equipped with ITU-T G.984 compliant 2.5G Downstream and 1.25G Upstream GPON interface,G8082U-A supports the full Triple Play of services including voice, video, and high speed internet access service. Compliant with standard OMCI definition, G8082U-A is manageable at remote side and supports the full range FCAPS functions including supervision, monitoring and maintenance.

★Service

Data

⊙The GPON RGU is delivered with four 10/100 Base-T Ethernet data interfaces, supporting:

⊙Auto-negotiation and MDI/MDIX auto-sensing

⊙Built-in layer-2 switch

⊙Advanced data features such as VLAN tag manipulation, classification, and filtering

⊙Built-in layer-3 routing and residential gateway

⊙802.11 b/g/n WLAN interface

⊙USB 2.0 storage

Voice

The DT-GU+4GE+2POTS+CATV SF RF+WF can optionally be delivered with up to two POTS interface ports for carrier-grade voice services, supporting:

⊙5 REN per line, balanced Ring at 55V RMS, DTMF dialing and pulse dialing

⊙Multiple voice codec

⊙Echo Cancelling, VAD, CNG

⊙Supporting static or dynamic jitter buffer

⊙Various CLASS services - Caller ID, Call Waiting, Call Forwarding, Call Transfer, etc.

⊙SIP (RFC3261)

⊙MEGACO v2 (H.248)

⊙Common architecture, drop-in replacement

To enable VoIP access, the DT-GU+4GE+2POTS+CATV SF RF+WF also supports interfacing external IAD box or Home Router with voice capability through the Ethernet Interface.

 Video

The DT-GU+4GE+2POTS+CATV SF RF+WF supports two kinds of video services: one with Video Overlay and the other is delivered in form of data (by multicast or unicast).

In supporting of Video Overlay, where a dedicated wavelength is used for carry video broadcast signal to the subscriber, a Triplexer (the three wavelength GPON optical transceiver) will be equipped. The output level of the analog RF signal is at +17dBmV.

As default, the pass band of this analog video interface is 47 MHz to 1000 MHz. But as required in some specific applications, the ONT can optionally provide an additional remote band control function to support for “Basic Services” and “Premium Service”.

In case where multicast technology is used for delivering video contents through data channel, the ONT supports the dedicated multicast GEM port on the Downstream. So the video contents are received and processed by all the ONTs through the unified channel and this greatly improves the bandwidth efficiency.

In addition, the ONT supports IGMP snooping function to be applied for further optimization. When IGMP snooping is enabled, the ONT monitors the member joining and leaving activities at the Ethernet service port, and then selectively delivers the multicast streams.