Product Name:UTP 4 Channel Passive Video Balun Transceiver Impedance: BNC terminal: 75ohm;Connection terminal: 100ohm ;Frequency response: DC - 8MHz Size: 10.3 x 5.7 x 2.8cm ;Weight: 184g;# CMRR (Common Mode Rejection ): 60DB # Working temperature: -10C - 70C; temperature: -30C - 70C With working with passive transceiver and transmitters allow signals transmission up to 330m and 1500m respectively. This 4 Channel Video Balun allows the of a shared or existing cable plant. Video balun is to convert the video signal into the balanced signal applicable to be transmitted on common -5 unshielded twisted pair wire with perfect transmission effect, which can be applied in the occasions such as video monitoring and video meeting and can transmit four channels of video simultaneously on an 8-core -5 twisted pair wire. Package Contents: 1 x UTP Passive Balun 1 x Manual 4 Channel UTP Balun adopt differential signal transmission with anti-jamming ability. Save project wire expenses. each a pair of twisted pair wire transmits one channel of video signal Full motion CCTV video at distances up to 330m when used with any passive UTP video transceiver. Up to 1500m with any UTP video receiver. No required. -in transient suppression protection. Applicable to NTSC, PAL, SECAM and CCIR systems Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.