NVT Specifications and applications

For pricing and availability  of any above Sales@4spi.com                                                                                                        

Return To   NVT

Designed for getting a video signal from one place to another via cat 2, cat 3, cat 5, telephone lines or UTP

(unshielded twisted pair). Use from one pair to a 50 pair trunking cable, for one to fifty cameras without the weight or bulk of coax cable. Ground loop elimination built-in.

This is the ideal product for hard to solve installation problems will work from 50' to 8000' no need for rg 6 or rg 11 at

distances greater than 500 feet. Use point-to-point Unshielded Twisted Pair wire, 24-16AWG (0,5-1,31mm), stranded or solid, Category 2, or better. Never use Shielded Twisted Pair wire (Exception: Multi-pair wire with an overall shield is OK).

Do not use un-twisted wire or "quad-wire". The video signal may co-exist in the same wire bundle as other video, telephone, data, control signals, or low-voltage power.

Always follow National Electrical Code, local, or other safety requirements. For safety, never put NVT signals in the same

conduit with high-voltage power. The wire must be installed with no bridge-taps, loading coils, talk-battery, or MOV type protectors. NVT's high-bandwidth signal will not pass through a telephone switching system, however multiple punch-blocks are OK. Works well in elevators simply attach to spare phone line.

Use point to point UTP wire 24-16 AWG stranded or solid wire

Use cat 2 or better

For distance up to 750' passive non amplified units will work

For distance over 750' amplified receiver is required

For distance over 3000' amplified receiver and transmitter are required

Power is either 12 dc or 24 ac

APPLICATION NOTES DONT'S

Do not use high voltage in wire conduit with NVT wiring

Do not mix wire colors solid color must be the same on both ends e.g.. if solid color is plus it should be the same on both

ends

Distance very important for correct choice of NVT unit to use.

don't guess at wire length ,refer to chart below

24AWG (0,5mm) = 52ohms per 1000ft (300m)

19AWG (0,8mm) = 16ohms per 1000ft (300m)

22AWG (0,5mm) = 32ohms per 1000ft (300m)

18AWG (1,0mm) = 13ohms per 1000ft (300m)

20AWG (0,5mm) = 20ohms per 1000ft (300m)

16AWG (1,3mm) = 8.2ohms per 1000ft (300m)

Examples of Applications 

Distance less  Than 750’                            1 camera  Use two Passive Transceivers  NV 216a to NV 216a

Distance more Than 750’ less than 3000’  1 camera  Use  one Passive one Active Transceiver  216a to 652R

Distance more Than 750’ less than 5000’  1 camera  Use two Active Transceivers 653T to 652R

Distance more Than 750’ less than 8000” 1 camera   Use two Active Transceivers 653T to 652R w/cat 5 wire

 

For multiple cameras at similar distances use Passive and/or active Hubs.

For additional information on any NVT product or it’s use please

Contact  Sylvester@4Spi.com