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VB37F

The VB37F is a passive UTP high noise immunity video balun for twisted pair transmission of CCTV video. The VB37F is a "heavy duty' design with two screw terminals for UTP connection and a female BNC for coax connection. This passive UTP video balun operates with other passive video baluns, transceivers or active receivers.

Description 

The VB37F is a passive UTP high noise immunity video balun for twisted pair transmission of CCTV video. The VB37F is a “heavy duty’ design with two screw terminals for UTP connection and a female BNC for coax connection. This passive UTP video balun operates with other passive video baluns, transceivers or active receivers. The VB37 series is available in the F model (female BNC) and the M model (male BNC). The VB37F UTP transceiver provides a low cost means of sending live video over unshielded twisted pair, point-to-point wiring for distances of up to 750 feet (225 meters) with other CCTV balun transceivers, up to 1,500 feet (450 meters) with the TR515 single channel receiver and model 51 series hubs, and up to 3,000 feet (900 meters) with the TR560 single channel receiver and model 56 Series hubs. The VB37F is compatible with all the “up-the-coax” control systems. A basic system uses (2) video balun transceivers, one at each end of a twisted pair of wires. These units are intended for use over existing in-house telephone wiring, Category 5 wiring or other twisted pair cable runs to provide a convenient, cost-effective alternative to coax.
The VB37 series units are designed to provide superior immunity from noise and interference even when running next to line power.The VbB7F alaso provides a convenient mounting tab for installation. The VB37F is a UTP transceiver that provides another Security Transmission Solution from Nitek.

Features 

• Works with any HD TVI/CVI/AHD or NTSC and PAL
• Quality video over ordinary twisted pair cable
• Immunity to noise and interference
• Passive devices—do not require power
• Video and P/T/Z over a single pair (with “up-the- coax” systems)
• Weather resistant design

Technical Specs 
 Transceiver Unit
Size 1.3″H x 2.0″W x .95″D
Power Requirements NONE REQUIRED
Input 1 vpp composite video
Monochrome or Color
Output Balanced low voltage current loop
Shipping Weight 1 lb for single unit
 System (2 Transceivers Required)
Video Format RS170, NTSC, PAL, SECAM,
CCIR (Color or B/W)
Video Input 1 vpp composite video
monochrome or color
Operating Frequency DC to 10 MHz
Common Mode Rejection >60 dB typ.
Temperature Range -40 degrees C to +85 degrees C
Humidity Range 0 to 98%, non-condensing
Transient Immunity 6,000 V 1.2uS x 50 uS

per ANSI / IEE 587 C62.41 B3

3,000 A 8uS x 20 uS

when ground screw terminal is

connected to earth-ground

Enclosure Material Black ABS flame retardant
plastic
Twisted Pair Connection Screw terminals
Wire Spec 26 to 12 AWG Unshielded
Twisted Pair (UTP)
DC Loop Resistance 51 Ohms/1,000 feet (max)
(51 Ohms/304 meters)
Normal Capacitance 17pF/ft.
Impedance 100 Ohms +/- 20%
UTP Category 2 or better
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