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Optical Network Unit (ONU)

As residential device or access device of users, it offers economical connection system of GEPON users and high broadband service by connecting to a gateway or PC. Well satisfying the high speed access demand, GEPON has a more prosperous perspective.

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ONU 852/853/854

 Data port:

PON 852: 1 Gigabit Ethernet port, 10/100/1000 BaseT

PON 853: 1 Fast Ethernet ports, 10/100 BaseT

PON 854: 4 Fast Ethernet ports, 10/100 BaseT


Data Rate: 1 Gbps for up and down stream per PON link

Optical Fiber Type and Connector: Single SMF Fiber, SC Type

Max. Reach: 10 or 20Km (optional PON transceiver)

Dimension (WxDxH): 205mm x 150mm x 36mm

Power: External power adaptor, 12VDC








ONU 855v: 4 FE ports, with 2 FXS and 1 Life Line

ONU 855w: 4 FE ports, with 2 FXS and 1 Life Line and WiFi

ONU 855c: 4 FE ports, with 2 FXS and 1 Life Line and CATV

Ethernet Service

Data port, Support 4FE user interfaces

WiFi 802.11 support (ONU 855w)

Voice Features

Provide 2 FXS and 1 PSTN interface with RJ-11 connector

Full complies with RFC-3261 SIP

Codec: G.711a/m-law, G.723.1, G.726, G.729A/B

Silence Suppression & Detection

Comfort Noise Generation(CNG)

Echo Cancellation(G.165/G.168)

Adaptive(Dynamic) jitter buffer

Advice Calling Feature

In-band DTMF, RFC-2833 and SIP INFO

DTMF / FSK-Bellcore / FSK-ETSI caller-id type


ONU 858v/8516v/8524v






ONU 858v: 8 FE L2 switch, 8 FXS ports

ONU 8516v/8524v: 16/24 FE L2 switch with 16/24 FXS

Ethernet Service

Data port, Support 8/16/24 FE user interface

Auto negotiation and auto MDI support on

 RJ-45 ports<

[Application Diagram]   [Datasheet]