Optical Node Unit for RFoG Applications

About the Product

The Light Link® Direct DPON is the Optical Node Unit (ONU) for new "RFoG" (RF over Glass) fibre-to-the-home architecture, and is optimized to work with hybrid fibre-coax (HFC) plant. It is designed to facilitate 1550nm forward path RF signals and return path RF signals at 1610 nm or 1590 nm in a 1 x 32 split FTTx topology.

The DPON incorporates an isolated DFB optical laser to modulate the return path signal from any RF set top box or DOCSIS modem onto fibre at 1610 nm or 1590 nm. The photodiode featured on the duplex model* provides a 1550nm CATV receiver with a forward path frequency response up to 1003 MHz. An optional CWDM combines these forward and return path RF signals across a 1310/1490 nm PON network, offering a transitional platform to migrate existing HFC two-way STB and DOCSIS modem technology to PON FTTH.

Employing leading edge system design, the DPON is a must-have in any FTTx/CATV solution. The power of having a Passive Optical Network (PON) but still allowing an RF overlay offers a multi-functional PON delivering more services over the same infrastructure.

Features

• Suitable for transmission of PAL or NTSC analogue TV channels as well as DVB-C or DVB-T digital television standards.
• Active Carrier Suppression (ACS) to allow up to 32 units to function within a PON HFC network compatible with DOCSIS 1, 2 or 3, and with SCTE-RFoG standards.
• In-built return path transmitter to suit set top box systems where pay-per-view and other various return path information is sent via RF.
• Powered directly using the power socket or via the F-type connectors.
• The compact and sturdy enclosure fits easily into wiring closets or network termination boxes.
• Specifically designed to be SCTE SP-910 RFoG standards compliant.