Document Number:
VB41x4
Model
VB41x4 Video Balun Transceiver Card for Twisted Pair up to 750 feet (228 meters)
   
  Unit for Modular Twisted Pair Video System
Revision Number:
010903

Description:
The VB41x4 modular card is designed for use with the modular rack system. Each card has 4 video balun units, built-in surge suppression and video loss detection.

The NITEK Video Baluns are transmission devices that provide a low cost means of sending live video over unshielded twisted pair, point-to-point wiring for distances of up to 750 feet (228 meters). The Nitek video baluns are also compatible with all of the “up-the-coax” control systems.

A basic system would require one unit at each end of a twisted pair of wires. The Nitek video baluns 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. Nitek video baluns are designed to provide immunity from noise and interference, even when running next to line power!

The VB41x4 plugs into the RK400 card cage, which holds up to ten (10) Modular cards. The RK400 card cage is a powered card cage that accepts the full line of Nitek receiver units. This modular “plug-in” feature allows the system to be custom configured for each application and provides easy expandability.

Features:

  • Quality video over ordinary twisted pair cable
  • Built-in surge suppression
  • Immunity to noise and interference
  • Built-in video loss detection
  • Video & P/T/Z over a single pair (with “up-the-coax”
    systems)
  • RJ45 or push terminals for easy connection

VB41x4 Modular Rack Card

Size 1 card slot
Twisted pair Input (4) Balenced low voltage current loop
Output (4) 1vpp composite video
monochrome or color
Common Mode
Rejection
60dB
Video Format RS170, NTSC, PAL, SECAM,
CCIR (Color or B/W)
Operating Frequency DC to 10 MHz
Transient Immunity Built-in
Shipping Weight 1 lb
Wire Spec
26 to 12 AWG unshielded
twisted pair (UTP)
DC Loop Resistance
51 Ohms/1,000 ft (max)
(51 Ohms/750 feet)
Normal Capacitance
17pF/ft.
Impedence
100 Ohms +/- 20%
UTP Category
2 or better

NITEK - VB41x4 - Video Balun Transceiver Card for Twisted Pair up to 1,000 ft

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Product Specifications
Adobe .PDF
Word .DOC
CAD
VB41x4 Spec  -- VB41x4 dwg
VB41x4 A&E Spec  VB41x4 A&E Spec  VB41x4 visio
VB41x4 Manual   -- --

Applications:

  • Structured cabling (Cat5) environments
  • Multi-camera applications through conduit (more
    cameras through a smaller diameter)
Ordering Information
PART DESCRIPTION
VB41x4 Video Balun Transceiver Card for Twisted Pair up to 750 feet (228 meters)
RK400 Modular Rack Cabinet for 10 cards

Wire and Cable Recommendations

The Nitek video balun is recommended for use with unshielded twisted pair (UTP) wiring. The systems will operate over wire gauges from 26 AWG through 12 AWG. Category 2, 3, 4 or 5 cable may be used. Individually shielded pairs should be avoided, as they drastically reduce the operating range of the systems. Multi-pair cable with an overall shield is acceptable. Video can be operated in the same communication cable coexistent with telephone, computer, control signals, power voltages and other video signals. While video may be routed through telephone punch-down block terminals, any bridge-taps, also called T- taps and any resistive, capacitive or inductive devices MUST BE removed from the pair.

For more specific information regarding wire types, gauges and proper installation techniques, please call (800) 528-4343 for technical assistance.

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