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CCTV Accessories
What is the function of a Balun?
The function of a balun (acronym for BALanced/UNbalanced) is to change from one transmission medium with a defined impedance (ie. 75 ohms coaxial) to another transmission medium with a different impedance (ie. 120 ohms twisted pair).
Why Use Baluns?
- Baluns extend transmission distances. Using passive baluns, you can send audio and video signals up to 2,500 feet, and VGA signals up to 350 feet.
- Baluns utilize existing wiring. Many buildings already contain structured UTP cabling systems.
- If so, the hard work is already done--simply connect a balun at each end of the cable run to transmit your signal.
- Baluns reduce installation cost and increase installation efficiency. Traditionally, a single cable could not transmit both audio and video. Using baluns, both audio and video can be transmitted via one inexpensive run of Cat 5.
- Baluns eliminate background hum and rolling interference. Because they contain isolation transformers and utilize twisted cabling, baluns eliminate the ground loops that cause background hum and rolling interference.
- Baluns lower installation cost. In many installations, the cost of baluns plus Cat 5 cable is less than traditional wire, such as coaxial and twisted pair audio.
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Single Channel H.264 IP Audio/Video Encoder w/ 4CIF, 2CIF, CIF or QCIF resolution settings, 30 frames per second
$775.00
NOVO Series 1 and 4 Channel Encoder , Built-In Web Server, 4xCIF, 2x4CIF, 30 fps / channel with Synchronized audio on every channel
$1,380.00
H.264 embedded DVR - 4, 8, 9, 16 ch, 4CIF, DCIF & QCIF, all units capable of 30 fps per channel with perfectly synchronized MP3 audio (***exception)
$1,758.00
HIGH-RES Hybrid Digital PC-Based Rack mount H.264 DVR/NVR, CIF-4CIF Res w/ Sync. Audio, 16 Internal RAID 5 Hard Drives and DVD-RW
$14,709.00
1/3", 1/2", and 1" CCD format Lens Selector / Viewfinder
$229.00
6" High Speed Day/Night Color High Speed PTZ, 36x optical 12x digital (420X zoom), Sony 1/4" EX-View HAD CCD, NTSC/PAL - WDR Option
$1,300.00
On SALE: $1,270.00
Hybrid Digital PC-Based Tower H.264 DVR/NVR Recorder, CIF-4CIF Res with Sync. Audio PLUS 16 IP Video Channels, License Included
$3,331.00
Super Shock Proof Armored High Speed 1/4" Sony EX-View PTZ - Day / Night, IP66 Weatherproof, IR up to 262.5 ft, 3.4-122mm lens, NTSC/PAL - WDR option
$2,400.00
On SALE: $1,950.00
Super Shock Proof Armored High Speed 1/4" Sony EX-View PTZ - Day / Night, IP66 Weatherproof, IR up to 300 ft, , 3.4-122mm lens, NTSC/PAL - WDR option
$2,450.00
Coaxial Video Ground Loop Isolator with B/I (TVS) Transient Voltage Suppressors for Surge Protection
$26.00
Ruggedized Mobile h.264 DVR - Real-Time Disp./Rec. up to 16 channels Audio / Video, 802.11g Wireless, live remote viewing, Wireless data transfer
$0.00
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