Transcript
NVT
TM
®
Quality video over ordinary telephone wire...
Model NV-643T Video Transmitter
Features: 4,000ft to one mile (1,2 to 1,6km) of Unshielded Twisted Pair wire Use with NV-1662R Hub for distances 2,000ft to 1 Mile (600 - 1,6km) 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-643T Video Transmitter is an active (amplified) device that allows transmission of real-time monochrome or color video on up to one mile (1,6km) of standard telephone wire when used with the NV-642R video receiver. Applications include Security/Surveillance, Video Distribution, or Distance Learning iin intra- or inter-building environments. Supports NTSC, PAL, or SECAM. The unparalleled interference rejection ability of the Model NV-643T 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-643T
NVT
TM
®
Quality video over ordinary telephone wire...
Model NV-643T Video Transmitter Technical Specifications Video
User Interface
Frequency response
Coaxial cable impedance
DC to 5 MHz
75 ohms
Power
Common-mode / Differential-mode rejection 15 KHz to 5 MHz 60 dB typ Impedance Coax, female BNC 75 ohms UTP, Terminal Block 100 ohms
24VAC / DC 200 mA max (transformer not included)
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
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 eight NV-643Ts are supported by the NV-RM 8/10 Rack Panel Specifications subject to change without notice.
Typical Application 24VAC
24VAC
43T
NV-6
Product Selection Chart Distance 3,000ft (900m) to 4,000ft (1.2km) , 2,000ft (600m) to 1 mile (1,6km) 4,000ft (1,2km) to 1 mile (1,6km)
Transmit
Receive
NV-643T NV-643T NV-643T
NV-622R NV-1662R NV-642R
External Power 24VAC 24VAC 24VAC
Surge Supression yes yes yes
Ground Rack Lifting Mountable yes yes yes
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-643T
NV-RM 8/10 NV-RM 8/10 NV-RM 8/10
Copyright © 1999 NVT, Inc.
411-253-1-G
