Cablefree Solutions Limited

CableFree Solutions - Free Space Optics - Broadband Wireless

Cablefree Virtual-Point-to-Multipoint™

Cablefree V-PMP™ for Metropolitan Area Networks

Cablefree V-PMP™ systems enable implementation of License-free Local Multipoint Distribution Service (LMDS) networks using Optical Wireless technology.

Conventional LMDS uses microwave technology in licensed frequency bands to create wireless, two-way broadband networks which can bring a wide range of high-value, quality services to homes and businesses. Services using LMDS technology include high-speed Internet access, real-time multimedia file transfer, corporate local area network extensions, interactive video, video-on-demand, video conferencing, and telephony amongst many other potential applications.

Cablefree Solutions has applied its proven expertise in Optical Wireless to create License-free Next-Generation LMDS solutions using Virtual-Point-to-Multipoint™ technology. Key benefits of this technology are:

· License-free operation

· Non-shared bandwidth for each subscriber

· High symmetric bandwidths up to 1.5Gbps per subscriber

· Rapid network deployment and fast new-user connection

· Low cost of start-up

· No frequency planning

· Data Security against interference and interception

· Redundant 1+1 connection options including equipment and path diversity

Designed especially for the telecommunications market, Cablefree V-PMP™ enables rapid rollout of wireless infrastructure for today’s high-performance networks

Cablefree V-PMP™ combines Point-to-Point Optical Wireless technology and Intelligent Routers to create high-performance cellular networks offering high symmetrical bandwidths up to 1.5Gbps to end-users within the coverage area.

Configuration and Performance

Deployment of networks using Cablefree V-PMP™ assumes cellular deployment with coverage areas up to 2km in diameter. Cablefree V-PMP™ cell-size limits are dictated by the geographic region of operation, with radius varying from 500m to 2km depending on local atmospherics, offering network availability figures up to 99.97%.

Outdoor-Unit (ODU) options allow for hub-subscriber distances of 0.5, 1.0 or 2.0km, and data bandwidths up to 155, 622 or 1500Mbps. These units are transparent in bandwidth within their capacity, and allow simple plug-in module upgrades at the Indoor Unit (IDU) for bandwidths all the way from T1 (1.544Mbps) or E1 (2.048Mbps) up to the maximum 155, 622 or 1500Mbps capacity of the ODU.

This flexible architecture allows industry-standard PDH (NxE1 or NxT1), SDH (155 or 622Mbps) or native-format (10/100/1000 Ethernet, or ATM-155 or 622Mbps) connection to the Customer Premises Equipment (CPE), with complete ease of bandwidth upgrade at any point in time.

Advanced design features give the Cablefree V-PMP™ superior performance over comparable Point-to-Multipoint technologies. Unlike microwave at 26 or 40GHz, Cablefree optical wireless technology is immune to ‘rain-fade’, with only atmospherics such as fog, snow, sand-storms and thermal shimmer limiting transmission reliability over much longer distances. The use of ‘wide beam’ technology overcomes potential problems of vibration and building movement ensuring correct beam alignment at all times.

Cablefree V-PMP™ systems consist of ODU (outdoor) and IDU (indoor) elements. Outdoor Units are full-duplex Cablefree transceiver units in IP65 environmentally protected casings, together with mounting fixings. Indoor units contain the network interfaces and power supplies. Both ODU and IDU elements have in-built alignment aids, link-test and diagnostic functions to facilitate installation and service.

Advanced network management options allow integration using either the proprietary Cablefree Cluster Manager package or industry-standard SNMP platforms.

Cablefree V-PMP™ incorporates numerous safety features and meets the stringent eye-safety requirements of IEC825 and BS EN60825.

For further information regarding the Cablefree V-PMP™ range please contact us.