NV-518A Dual Video/Audio Transceiver

The NVT Model NV-518A Dual Video/Audio Transceiver contains one amplified receiver that allows transmission of real-time monochrome or color video 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 1,000ft (300m). 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 over Category 2 or 3, and 2,000ft over Category 5 wire.

The NV-518A comes with an RJ-45 patch-cord and power supply. For Rack-mounting, use the NV-518AR.

• Dual full-motion monochrome or color video and audio
• Distances up to 3,000ft (1km) when used with another NV-518A
• Exceptional interference rejection
• Built-in transient protection & ground lifting
• Built-in brightness & sharpness controls, Power LED, and Active LED
• BNC, 1/4" Phone and RJ-45 jack connections
• May be used as a repeater
• Limited lifetime warranty

Audio
Attenuation
20 Hz to 20 KHz	1.5 dB typ
Impedance
600 ohms
Signal
Line Level	+4 dBm max
Video
Attenuation
DC to 5 Mhz	1.5 dB max
Common-mode rejection
15KHz to 5 Mhz	60 dB typ
Impedance
Coax, female BNC	75 ohms
UTP, Screw Terminals	100 ohms
LEDs
Red LED	Power On
Green LED	Active when path "A" signal received
Wire Type
Network Wiring	One Unshielded Twisted Pair 24-16 AWG (0.5-1.31mm) per signal
Category Type	Cat 2 or better
Impedance	100 ± 20 ohms
DC Loop Resistance	26 ohms max
Differential Capacitance	19 pF/ft max
Wire Length, camera to monitor including coax	3,000 ft max (900 m).
Connector Interfaces
Video
Female BNC jacks
Audio
1/4" Phone Jack
Network Interface
RJ-45 Non-keyed Jack
Power
12 to 24 VAC 70mA (power supply included)
Environmental
Temperature	0 to +50° C
Humidity (non-condensing)	0 to 95%
ESD Susceptibility (200 pf probe)	20 KV
Mechanical
Dimensions excluding BNC	5.75 x 3.60 x 1.15 in (146 x 94.4 x 29.2 mm)
Weight	16 oz (450 g)
Material	Gray ABS
Mounting	Two 3M Dual Lock adhesive strips
* Specifications subject to change without notice.