GPS RF over Fiber Transport

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• Supports all GPS frequencies internationally
• Weatherproof Fiber Transmitter for outdoor mounting
• Compact Transmitter also mounts indoors without using rack space
• Each system supports one or two GPS antenna paths
• Supports high level of optical split and RF split for flexible routing of GPS for C-RAN and base station hotels
• Operates on backed up base station power or dual AC power supplies
• Simple to install – no adjustments, no software set up
• Patented optical alarm reporting and simple discreet alarm connections
• NEBS Level 3 permits installation in the Central Office
• Approved by all 4 US WSP (Wireless Service Providers)

Modern data networks, commercial mobile wireless networks and Public Safety wireless networks all use the RF signal from the GPS (Global Positioning System) or GNSS (Global Navigation Satellite System) as the reference to sync the network and ensure maximum throughput. The GPS RF signal is either connected directly to the 3G, 4G and 5G radios or to the master timing servers that provide PTP timing over the backhaul. Those devices must often be installed in locations far from a clear view of the sky – too far for a coaxial cable connection to the antenna. In addition, these devices are frequently aggregated in centralized locations such as data centers, CRAN hubs and base station hotels where many GPS connections are needed. In both cases, Optical Zonu’s GPS Fiber Transport solutions provide a simple, compact, reliable and economical GPS over Fiber connection.

GPS Point-to-Point Connectivity GPS systems typically consist of an active rooftop antenna, a GPS receiver and a length of coaxial cable to connect them. A challenge arises, however, when the distance between the rooftop antenna and the cellular base station equipment (usually in the basement) is greater than 300 ft. Coaxial cable runs of over 300 ft are not practical for most GPS receiver systems, so a fiber optic link is required at these or greater distances, and Optical Zonu’s GPS Fiber Transport is the solution approved by all four US wireless service providers.

GPS RF Distribution This solution is also optimized for cost-effective, low-profile distribution of the GPS signal for CRAN hubs, base station hotels and data centers. The Base Unit RF outputs connect to your GPS receivers or base station equipment. The Base Unit is available with up to 1 to 16 RF outputs for point-to-point or point-to-multipoint connections. In addition, the fiber optic cable can be split up to 8 ways (16 splits are available for special order). The combination of optical and RF splitting permits easy routing of the GPS over thin optical fiber while providing the lowest cost per connection. The Base Units are simply distributed in the racks with the BBUs or eNodeBs so the final connections require only lightweight, short RF jumpers. The transport is NEBS Level 3 certified permitting installation in Central Office environments.

The Transport is available for one or two GPS antennas as well as two antennas with auto-switchover redundancy. The system provides simple alarm reporting to the network management system already in place so integration is simple with need for a separate SNMP setup.