1 Channel Passive Video Transceiver - CCTV Video Balun - BNC Video Over UTP Cable/Lan (1 Pair)
Package Contents:
• 2x CCTV BNC Video Balun Transceiver
Features:
• 1 Channel passive video transceiver
• Receiving and transmitting video signals over UTP cable without using a power supply (CAT5)
• Wire type : One Unshielded Twisted Pair 24-16AWG(0.5-1.31mm) Per video signal
• DC Loop Resistance 52 ohms per 1,000 ft(18 ohms per 100m)
• Built-in transient protection design
• Enable cost-effective, point to point transmission appliance
• Easy Installation
• Environment: Temperature:-10~+50C Humidity:0~95%
Description:
The set is designed to transmit video signal from a single source using a
twisted-pair cable. Each of the video transformers (baluns) has a flexible
cable terminated with BNC connector, which ensures easy connection even to
closely spaced BNC sockets. One of the devices matches the 75 ohm impedance
of the unbalanced source to the impedance of the balanced line usually
formed by a pair of UTP cable, the second performs the opposite function.
The video signal can be transmitted over a distance up to 400 m (UTP CAT5e).
The installer should pay attention to connecting the appropriate wires to the
correct terminals: (+) to (+) and (-) to (-).
Improper connection will cause interference.
Definition of 'Balun':
"Balun" is the short for "Balance-Unbalance", in CCTV applications meaning a
transformer for changing the transmission medium from a coaxial cable to a twisted
pair, and vice versa. The biggest advantages of using balanced transmission cables
are lower costs, higher resistance to external interferences, and possibility of
using longer transmission lines. Due to identical arrangement of the two wires of
a balanced line, the interferences are also the same and can be cancelled in a
differential balanced input of the receiver.