
NVT : NV-872
Description
Employing NVT’s latest generation Digital EQ technology, the NVT 8-Channel Digital EQ Active Receiver DA Hub NV-872 is an 8-channel active (amplified) hub that allows the transmission of full-motion monochrome or color video for distances up to 1 mile (1,6km) using Category 2 or better unshielded twisted-pair (UTP) wire. The receiver hub continuously and automatically conditions the video signal, compensating for cable attenuation, wiring polarity, ground loops, and voltage transients, independent of video signal content.
The NV-872 unparalleled interference rejection and low emissions allow long run video to co-exist in the same wire bundle as telephone, datacom, or low-voltage power circuits. This allows the use of shared or existing cable plant. Ground-lifting ensures no annoying hum-bars when ground-potential differences exist. With built-in transient protection, damaging voltage spikes are eliminated.
Features
NV-872 features include:
→ Adaptive DigitalEQ fully automatic 4-band equalization continuously provides adjustment-free equalization
→ Compact rack-mountable 19" 1U high enclosure features 8 channels with 4 outputs per channel
→ Full motion CCTV video at distances up to 3,000ft (1km) when used with any passive NVT transceiver or hub; 1 mile (1,6km) when used with the NV-653T active transmitter; 1,000ft (300m) with shielded twisted-pair when used with any passive NVT transceiver or hub
→ RJ45 connectivity with optional NV-RJ45A RJ45-to-screw-terminal adaptors (included)
→ Exceptional interference rejection
→ Built-in transient protection and ground-lifting
→ Frequency Response DC to 10 MHz
→ Automatic compensation for reverse-polarity wiring
→ At-a-glance per-channel diagnostics
→ Compatible with qualified UTP cameras
→ Includes eight 2ft (60cm) coax jumper cables, rack mount hardware and two NV-RJ45A adaptors
Specifications
Video Frequency response | DC to 10 MHz |
Video Equalization | 0.5 dB typ |
Video Automatic | (no adjustment) 0 to 3000ft (0 to 1km) for NTSC or PAL standards Automatic polarity detection and control Impedance |
Video Common-mode / Differential-mode rejection | 15 KHz to 5 MHz 60 dB typ |
Video Impedance Coax, female BNC | 75 ohms |
Video Impedance UTP, Screw terminal block or RJ45 | 100 ohms |
Wire Unshielded Twisted Pair | 0 to 3,000ft 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 Shielded Twisted Pair | 0 to 1,000ft (0 to 300m) 24-16 AWG (0,5-1,31mm) |
Wire Impedance | 100 ± 20 ohms |
Wire DC Loop Resistance | 52 ohms per 1,000ft (18 ohms per 100m) |
Wire Differential Capacitance | 35 pF/ft max (115 pF/m max) |
LEDs Power On | Blue LED |
LEDs Per-channel status | Off = no signal detected |
LEDs Per-channel status | Green = valid video signal |
LEDs Per-channel status | Amber = marginal signal detected |
LEDs Per-channel status | Red = faulty signal detected |
IEC380 power inlet | 115 / 230V 50 / 60 Hz 160 mA 37 Watts 125 BTU / hour |
Power inlet | IEC with molded power cord (included) |
Protection | 5x20mm type T fuse 160mA 250V |
Ambient temperature | 32 to 122°F (0 to 50 °C) |
Minimum airflow | 4 ft3/min (0.1m3/min) |
Humidity (non-condensing) | 0 to 95% |
Transient Immunity | per ANSI / IEEE 587 C62.41 |
Dimensions, excluding brackets and connectors | 17in wide, 1.7in high, 8.125in deep; 43cm wide, 4,5cm high, 20cm deep |
Packaged weight | 4.8lbs (2,2kg) |
Mounting Included | Rack mount L brackets for front, rear, or wall installations; rubber feet for desk applications |
Cables Included | Eight 2ft (60cm) coax jumpers Molded IEC power inlet cord 7ft (200cm) |
NV-RJ45A Included | Two NV-RJ45A RJ45-to-screw-terminal |
Resources & Documents
nv-872.pdf | Datasheet |