
NVT : NV-518AR
Description
The NVT Rack Mount Dual Video/Audio Transceiver NV-518AR Dual Video/Audio Transceiver is a rack-mount device that contains one amplified receiver that allows transmission of real-time monochrome or color video and audio up to 3,000ft of 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-518AR 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-518AR 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. Up-the-coax type signal may be sent over the same wire pair. The NV-518AR card slides into the NV-RM15 chassis. For stand alone applications, use the NV-518A.
Features
NV-518AR features include:
→ No power required
→ Built-in transient protection
→ Exceptional interference rejection
→ Supports up-the-coax type control signals
→ Frequency Response DC to 10 MHz
→ RJ45, BNC and 1/4 TRS
→ Limited lifetime warranty
Specifications
Video Attenuation | DC to 5 MHz 0.5 dB typ |
Video Common-mode / Differential-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 |
Audio Signal | Line level 4 dBm max |
Power LED | Amber |
Active LED | Green When path a signal received |
Network Wiring | Four Unshielded Twisted Pairs 24-16 AWG (0,5-1,31mm) |
Wire Category type | 2 or better |
Wire Impedance | 100 ± 20 ohms |
Wire DC loop resistance | 52 ohms per 1,000ft(18 ohms per 100m) |
Wire 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 | Female BNC jacks |
Connector Interfaces Audio | 1/4in (6mm) phone jack Tip= Ring= - Sleeve= no connection |
Power | No power required |
Ambient temperature | -20 to 75 °C |
Humidity (non-condensing) | 0 to 95% |
Transient Immunity | per ANSI / IEEE 587 C62.41 |
Dimensions, excluding connectors | 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 |
Dual Full-motion monochrome or color video and audio at distances up to | 750ft (225m) when used with another NV-418A or NV-418AR; 3,000ft (1km) when used with an active receiver such as the NV-518A or NV-518AR |
Resources & Documents
nv-518ar.pdf | Datasheet |