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Dual Video/Audio Transceiver

The NVT Dual Video/Audio Transceiver NV-518A Dual Video/Audio Transceiver contains one amplified receiver that allows transmission of real-time monochrome or color video and audio over Unshielded Twisted-Pair (UTP) telephone wire. An additional passive port is included allowing the support of bi-directional video, or as a second receive path up to 750ft (225m). Alternately, the ports may be combined to allow the NV-518A to function as a repeater. Baseband (composite) signals of any type are supported. Applications include Security/Surveillance, Video Distribution, Video Conferencing, or Distance Learning.

The unparalleled interference rejection and low emissions of the Model NV-518A allow video signals to co-exist in the same wire bundle as telephone, datacom, or low-voltage power circuits. This allows the use of a shared or existing cable plant. Video signals traveling in opposite directions in the same wire bundle are limited to 1,000ft (300m) over Category 2 or 3, and 2,000ft (600m) over Category 5 or better wire. The NV-518A comes with an RJ45 patch-cord and power supply. For rack-mounting, use the NV-518AR with the NV-RM15 rack system.

NV-518A features include:

→ Coaxial low-voltage power jack, 2,1mm, Power transformer 12VAC, 300mA, included
→ Dual full-motion monochrome or color video and audio
→ Distances up to 3,000ft (1km) when used with a passive transceiver
→ Exceptional interference rejection
→ Built-in transient protection and ground lifting
→ Built-in brightness and sharpness controls, Power LED, and Active LED
→ Frequency Response DC to 10 MHz
→ BNC, 1/4" Phone and RJ45 jack connections
→ May be used as a repeater for one way video/audio applications
→ Limited lifetime warranty

Video Attenuation DC to 5 MHz 0.5 dB typ
Video Common-mode rejection 15 KHz to 5 MHz 60 dB typ
Video Impedance Coax, RCA jack 75 ohms
Video Impedance UTP, RJ45 jack 100 ohms
Audio Attenuation 20 Hz to 20 KHz 1.5 dB typ
Audio Impedance 600 ohms
Signal Line level 4 dBm max
Network Wiring Two Unshielded Twisted Pairs 24-16 AWG (0,5-1,31mm)
Category type 2 or better
Impedance 100 ± 20 ohms
DC loop resistance 52 ohms per 1,000ft (18 ohms per 100m)
Differential capacitance 19 pF/ft max (62 pF/m max)
Wire length path “a” 3,000ft (1km) path “d” 750ft (225m). When connected to a passive transceiver
Connector Interfaces Video; Audio Female BNC jacks; 1/4in (6mm) phone jack
Connector Interfaces Twisted pair interface RJ45 non-keyed jack wired for 4 twisted-pairs
Power Requirement 12 to 24 VAC/DC 100mA (may be delivered through an additional twisted-pair)
Ambient temperature -20 to 50 °C
Humidity (non-condensing) 0 to 95%
Transient Immunity per ANSI / IEEE 587 C62.41
Dimensions 5.75 x 3.60 x 1.15in (146 x 91,4 x 29,2mm)
Weight Transceiver alone 9oz (250g); With transformer and patch cord 16oz (450g)
Material Gray ABS
Mounting Two 3M Dual Lock adhesive strips



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Prices and specifications subject to change without notice.