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Cable network operators

Network evolution

Cable network operators have begun modernizing their infrastructure by extending fiber as deeply as possible. The trend to push fiber ever closer to the end user, in conjunction with distributed access architecture (DAA), is transforming cable networks and providing higher bandwidth capacity, improved customer quality of experience and access to advanced applications. This transition to distributed access architecture, with remote PHY devices replacing fiber nodes does, however, bring a new set of synchronization requirements to cable access networks. Typically, cable operators are using Data Over Cable Service Interface Specification (DOCSIS), starting from DOCSIS 3.1, with synchronization provided using the ITU-T G.8275.2 PTP (IEEE 1588 2008) profile.

Precision timing

A comprehensive grandmaster portfolio with sophisticated assurance capabilities enables flexible design and continuous monitoring of sync quality.
Our OSA 5430 with 10Gbit/s interfaces, comprising a multi-technology PTP grandmaster, NTP server and GNSS receiver, is the ideal sync solution for your cable network and can be used to synchronize thousands of RPDs.

Getting digitized cable networks in sync

Oscilloquartz provides a complete synchronization portfolio for cost-efficient, manageable and precise timing of any device and application.

Accuracy to the edge

Timing delivery to the edge of the cable network was previously provided inherently by quadrature amplitude modulation (QAM) signals. With the transition towards digital feeder systems, precise synchronization needs to be delivered to the RPD, with accuracy depending on the targeted application. While moderate precision is required for synchronizing the shared access to the coaxial cable, mobile backhaul applications need extremely precise time information closely monitored by the connectivity service provider. PTP is used for timing delivery with GNSS-sourced grandmasters at head-ends or distributed in the access network for very high timing accuracy.

Time to call the experts

Our experience with cable networks gives us the innovation and knowhow needed to design and implement the most suitable technology for your infrastructure.

Ultimate solution for your cable requirements

We support cable network operators and MSOs with a focused solution that enables the seamless transformation of current HFC networks into next-generation distributed access architectures. What’s more, we’re actively participating in interoperability sessions and have tested interoperability with many vendors. Our OSA 5430 and OSA 5420 are the ideal solutions for the synchronization of your cable network. As with all Oscilloquartz products, our OSA 5430 and 5420 have been specifically designed to help cable network operators leverage their existing networks to meet increasingly advanced and progressively stringent synchronization demands in an operationally efficient and cost-effective way.

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