The Technetix UCA-6820 is one of a series of ingenious solutions designed to lower the total cost of IP video installations. Many existing CCTV systems employ co-axial cable as the video transmission media with some sites having 10s or 100s of kilometres already installed.
For installations with multiple cameras, the UCA-6820 can be used to convert all incoming coaxial signals to fully transparent IP connections to a central switch. All remote adapters are powered from this device which consists of two 19” rack-mounted housings containing 2 x’s 4-port cards (UCA-6424)
By employing the UCA-6820 in combination with multiple UCA-6120's it is now possible to use existing coaxial cable to transmit fully specified Ethernet signals transparently across a link of up to 350m. A power transmission capability (maximum 60W) means that no power is required at the remote end and this can further reduce the cost of new installations.
The UCA-6820 is also useful for providing Ethernet connections in excess of the normally permitted 100m. With a maximum range of 350m, a comination of the UCA-6820 and UCA-6120's can become a low cost alternative to fibre-optic media or can simply save the cost of having to add an in-line repeater on standard Ethernet connections.
The units are effectively plug 'n' play with no complicated set-up procedures. Simply connect the cables and fix into position then plug in any Ethernet device - IP cameras, access controllers, video servers or any other Ethernet compliant piece of equipment.
The adapters convert the symmetrical send/receive Ethernet signals into asymmetrical signals and then combine them to be transported over a single strand of copper. [See .] To compensate for the loss that occurs during conversion, the system re-amplifies the received signal. [See , as a function of current, for different types of coaxial cable.]
UCA-6820 Adapter - Features
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Transmit full duplex 100Mbps Ethernet and power over coaxial cable
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Low latency, transparent to higher level protocols
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Connect IP cameras using existing coaxial cables. Removes cabling cost when upgrading from analogue to IP video systems
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Long cable lengths, up to 250m [829 ft] (RG59), up to 350m [1,150 ft] (Coax-6)
700m with in-line repeater (UCA6220/R)
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Remote end is powered over the coaxial cable, no need to run a separate power spur
Input: 15-60 VDC
Maximum Transmitted Power: 60W
Maximum Current: 1.2A
Consumption (@24V): 3.5W
Connection: removable 4-contact terminal block
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UCA-6820 Series Ethernet Adapter, 424 kB pdf file.
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