Transcript
NVT
TM
®
Quality video over ordinary telephone wire...
Model NV-642R Video Receiver
Features: Up to one mile (1,6km) of Unshielded Twisted Pair wire Adjustable Distance Equalization Full motion monochrome or colour video Patented 60dB crosstalk immunity Full ground-lifting Built-in transient protection Baseband NTSC, PAL, & SECAM compatible Limited lifetime warranty The NVT Model NV-642R Video Receiver is an active (amplified) device that allows transmission of real-time monochrome or colour video on up to one mile (1,6km) of standard telephone wire when used with the corresponding video Transmitter. Applications include Security/Surveillance, Video Distribution, or Distance Learning in intra- or inter-building environments. Supports NTSC, PAL, or SECAM. The unparalleled interference rejection ability of the Model NV-642R allows long run video signals to co-exist in the same wire bundle as telephone, datacom, or lowvoltage power circuits. This allows you to use the shared or existing cable plant. Ground-lifting ensures no annoying "hum-bars" when ground potential differences exist. With built-in transient supression, damaging voltage spikes are eliminated. Network Video Technologies, Inc. 1755 E. Bayshore Road, Suite 8B • Redwood City, CA • 94063 USA 01.650.562.0600 • 800.959.9870 FAX 01.650.365.9575 • http://www.nvt.com
NV-642R
NVT
TM
®
Quality video over ordinary telephone wire...
Model NV-642R Video Receiver Technical Specifications Video
User Interface Coaxial cable impedance
Frequency response DC to 5 MHz Adjustable Distance Equalization Common-mode / Differential-mode rejection 15 KHz to 5 MHz 60 dB typ Impedance Coax, female BNC 75 ohms UTP, Terminal Block 100 ohms
75 ohms
Power 24VAC / DC (transformer not included)
50 mA max
Environmental Temperature 0 to +50°C Humidity (non-condensing) 0 to 95% Transient Immunity 6,000 V 1.2µS x 50 µS per ANSI / IEEE 587 C62.41 B3 3,000 A 8µS x 20 µS
LED Indicators
when green ground screw terminal is bonded to earth-ground
Amber "Power-On"; Green "Active" signal present
Mechanical Wire Type Network Wiring
One Unshielded Twisted Pair 24 AWG or thicker
Category Type 2, 3, 4, or 5 Impedance 100 ± 20 ohms DC Loop Resistance 52 ohms per 1,000ft (600m) Differential Capacitance 19 pF/ft max Wire Length see chart below
Typical Application
Dimensions, excluding connectors 3.00 x 2.10 x 1.56in (76.2 x 53.3 x 39.6mm) Weight 4.0 oz (100 g) Black ABS Material Mounting Two 0.175 in (4.4mm) diameter holes 2.5in (63.5mm) apart Up to (8) NV-642Rs can be mounted to (1) NV-RM 8/10 Rack Panel
Specifications subject to change without notice.
24VAC
NV-64
2R
Product Selection Chart Transmit
Receive
External Power
2,000ft (600m) to 3,000ft (900m)
NV-213A / A-M
NV-642R
24VAC at rec
3,000ft (900m) to 4,000ft (1,2km)
NV-623T
NV-642R
4,000ft (1,2km) to 1 mile (1,6km)
NV-643T
NV-642R
Distance
Ground Surge Supression Lifting yes
yes
NV-RM 8/10
24VAC
yes
yes
NV-RM 8/10
24VAC
yes
yes
NV-RM 8/10
Network Video Technologies, Inc. 1755 E. Bayshore Road, Suite 8B • Redwood City, CA • 94063 USA 01.650.562.0600 • 800.959.9870 FAX 01.650.365.9575 • http://www.nvt.com
NV-642R
Rack Mountable
Copyright © 1999 NVT, Inc.
411-252-1-G
