AccessPON

The AccessPON Host transponder is a modular system designed to reduce the cost of providing Cable/Satellite TV and high-speed Ethernet/IP services during a system upgrade to Fiber Deep optics by utilizing the existing coaxial drop cable. Data service in the form of Ethernet / IP and conventional HFC overlay is transported through PON fiber optic deployment to the residents’ connection point, via an aerial or pedestal mount service.

At this point, the signals are converted from PON to Ethernet and, if HFC signals are present, from RFoG to RF. The Ethernet signals are then converted to MoCA bonded channel modulation, combined with HFC if present, and launched into the subscriber coax. These signals are then received by the MoCA home gateway, giving the subscriber access to 5 MHz to 1.2 GHz HFC service and a >1.25 GHz data service, yielding 1.2 Gbps data speed at this time.

AccessPON Host transponder can support up to 4.8 Gbps aggregated Ethernet data speed over four (4) coaxial output interfaces, which can satisfy the latest GPON 2.5 or the future 10G-EPON or XG-PON2 deployment. The MoCA home gateway has one (1) bi-lateral port for HFC, four (4) 1000Base-T ports, and an optional 802.11 b/g/n/ac Wi-Fi broadband router. This system is MoCA Intranet (LAN) blocked to allow compatibility with existing MoCA network in the home while providing MoCA Internet (WAN) access service simultaneously.

System powering can be provided from commercial power supply, from HFC coaxial cable, from MDU basement, or from another external power source to the remote AccessPON Host transponder in the pole, pedestal, or wiring closet. Outdoor casting with modular design to host multiple AccessPON Host transponders is also available.

The ROI is realized initially by using the existing coaxial drop instead of burying or laying fibers to the home. Future ROI can be realized by using the same AccessPON devices when PON infrastructure is upgraded with faster aggregation data pipe (e.g. GPON 2.5, 10G-EPON, XG-PON1/XG-PON2). Operating costs are reduced by the facts that the electronics need ed for service are not installed until activation. The bandwidth and traffic policing can be remotely configured in runtime for billing.

When a new customer is added, simply connect the subscriber drop, and install the gateway in the home to activate. This system can easily be operated in parallel with the existing HFC network and switched over to PON-based FTTH whenever needed. With its lightweight, rugged design, and easy integration to your existing system, the AccessPON devices are the most cost-effective data transponder for signal conversion needs.

High Speed Data with RF Overlay

Spectrum of DOCSIS CATV and MoCA overlay

Video RF
DVB-T/ISDB-T50 to 860MHz
DVB-C5MHz to 1.2GHz
ATSC150 to 850MHz
Ethernet / IP
Hi-Band1.1GHz to 1.6GHz
800Mbps to 2.5Gbps
Low-Band5MHz to 95MHz
300 to 600Mbps
Distance
70dB loss budget between two MoCA devices (e.g. 940ft or 287m over RG6 cable at 1.35GHz)

Coaxial Cable Distance Extension

Frequency vs Distance attenuation of coaxial cables

MoCA operating frequency is configurable between 1.1GHz and 1.6GHz with attenuation around 7.4413dB/100ft (or 24.4041dB/100m) over RG6 cable at 1.35GHz. The bonded channel adatper has output power up to 50dBmV and the minimum input/receive power is -20dBmV.

The maximum attenuation allowed between two MoCA adapters is 70dB. The longest distance between two MoCA adapters to perform is dependent on the operating frequency and the attenuation coefficient of coaxial cable. For example, MoCA signal modulated at 1.1GHz can reach 70 / 4.6576 = 1,503ft (or 459m) extension over RG11 cable without amplifier.