ADVA launches grandmaster clock with multi-band GNSS receiver

ADVA has launched its OSA 5405-MB, the industry’s first ultra-compact outdoor PTP grandmaster clock with multi-band GNSS receiver and integrated antenna. Part of the OSA 5405 Series of smart synchronization devices for indoor or outdoor deployment, the OSA 5405-MB ensures timing accuracy by eliminating the impact of ionospheric delay variation. This empowers communication service providers (CSPs) and enterprises to deliver the nanosecond precision needed for 5G fronthaul and other emerging time-sensitive applications. The multi-band GNSS receiver and integrated antenna enable the OSA 5405-MB to meet PRTC-B accuracy requirements (+/-40nsec) even in challenging conditions. For the first time, the technology is available in an edge timing device with minimal footprint, helping operators achieve unprecedented accuracy and reliability as they roll out wide-spread small cell networks.

The OSA 5405 Series is a uniquely versatile timing solution ideal for deployment deep in urban canyons, precisely where the most advanced end applications require stringent synchronization. With its small form factor, the OSA 5405-I indoor variant can be positioned on windows to avoid multipath signal interference. Offering both electrical and optical interfaces and featuring cost-effective Ethernet cabling, the OSA 5405 Series avoids the archaic and expensive RF feeds of traditional GNSS installations by integrating an antenna, GNSS receiver and PTP grandmaster in a single device.

Now with multi-band GNSS technology, the OSA 5405-MB also protects against timing inaccuracies caused by ionospheric disturbance. By receiving GNSS signals in two frequency bands and using the differences between them to calculate and compensate for delay variation, the OSA 5405-MB eliminates inaccuracy and ensures ultra-precise synchronization whatever the space weather conditions. It can also work with up to four concurrent GNSS constellations (GPS, GALILEO, GLONASS and BEIDOU), increasing the number of observable satellites in urban canyons. A comprehensive set of Syncjack™ PTP and GNSS jamming and spoofing monitoring features in combination with ADVA’s Ensemble Controller and Sync Director assures highest synchronization quality and provides transparency for simple operation of even very large synchronization networks. The OSA 5405-MB also offers network-delivered timing backup to further mitigate GNSS vulnerabilities and make synchronization more robust and resilient.

https://www.adva.com/