NVT NV-842 Specsheet

Model NV-842

8-Channel StubEQTMActive Receiver Hub

RJ45A Adaptors
Included

Features:

• Adaptive StubEQTMfully automatic 2-band equalization provides adjustment-free
equalization every time

• Compact rack-mountable 19” 1U high enclosure features 8 channels

• Full motion CCTV video at distances up to 1,500ft (460m) when used with any passive NVT
transceiver or hub; 2,000ft (600m) when used with the NV-653T active transmitter

• RJ45 connectivity with optional NV-RJ45A RJ45-to-screw-terminal adaptors (included)

• Exceptional interference rejection

• Built-in transient protection and ground-lifting

• Compatible with qualified UTP cameras

• Includes rack mount hardware and two NV-RJ45A adaptors

• Limited lifetime warranty

Employing NVT’s latest generation StubEQTMtechnology, the NV-842 is an 8-channel active (amplified)
hub that allows the transmission of full-motion monochrome or color video for distances up to 2,000ft
(600m) using Category 2 or better unshielded twisted-pair (UTP) wire. The receiver hub continuously
and automatically conditions the video signal, compensating for cable attenuation, ground loops, and
voltage transients, independent of video signal content.

The 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.

Network Video Technologies

4005 Bohannon Drive • Menlo Park, CA 94025 • USA

(+1) 650.462.8100 • 800.959.9870 • FAX [phone]

nvt.com • [e-mail]

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Ch. 1, 5

Ch. 4, 8

Ch. 3, 7

Ch. 2, 6

Model NV-842

8-Channel StubEQTMActive Receiver Hub

Technical Specifications

V I D E O

Frequency response DC to 5 MHz
Equalization 0.5 dB typ

Automatic (no adjustment) 0 to 1,250ft (0 to 380m)
for NTSC or PAL standards

Common-mode / Differential-mode rejection

15 KHz to 5 MHz 60 dB typ

Impedance

Coax, female BNC 75 ohms
UTP, Screw terminal block or RJ45 100 ohms

Outputs: female BNC

W I R E T YP E

Unshielded Twisted Pair 0 to 1,500ft 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)

L E D s

Power: Blue=OK Red=Fault

P O W E R I NP U T

External 12VDC 1 Amp regulated power module with IEC380-8 inlet
and molded power cord (included)

Voltage 115 / 230VAC
Current 125mA / 60mA
Wattage 15 Watts 50 BTU/Hour
Frequencey 50 / 60 Hz

E N V I R ON M E NT A L

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

M E C H A NI C A L

Dimensions, excluding brackets and connectors

Dimensions 17in wide, 1.7in high, 1.875in deep

43cm wide, 4,5cm high, 4,8cm deep

Weight 2.15lb (0,97kg)

A C C E S SO R I ES (Included)

Mounting Rack mount “L” brackets for front,

rear, or wall installations;

rubber feet for desk applications

NV-RJ45A Two NV-RJ45A RJ45-to-screw-terminal

Specifications subject to change without notice.

Typical Applications

Passive to Active Application up to 1,500ft (460m)

NV-208A-M

Punch

block
(IDF)

Backbone

Punch

block
(IDF)

Active to Active Application up to 2,000ft (600m)

Punch

block
(IDF)

NV-653T

Punch

block
(IDF)

Backbone

Network Video Technologies

4005 Bohannon Drive • Menlo Park, CA 94025 • USA

(+1) 650.462.8100 • 800.959.9870 • FAX [phone]

nvt.com • [e-mail]

-76-

NV-842

DVR / NVR

NV-842

DVR / NVR

Monitor

IP

Monitor

IP

Copyright © 2009 NVT, Inc.

411-842-1-B