Usage Tips:Features: HD video balun converts video signals into balanced signals for normal Cat-5 unshielded twisted pair transmission. With perfect transmission effect, it can be applied to video surveillance, video conferencing, etc. Can transmit four channels of video image simultaneous on an 8-core Cat-5 twisted pair wire. It can simplify the wiring project and save wire use quantity. Compatible with all HD-CVI,HD-TVI,HD-AHD. Up to 250m for 1080P AHD Cameras. Up to 450m for 720P CVI Cameras. Up to 250m for 1080P CVI Cameras Up to 250m for 720P/1080P TVI Cameras. Up to 320m for 720P AHD Cameras. NTSC,PAL,and SECAM video formats. No power required. 60dB crosstalk and noise immunity. Built-in transient suppression protection Specification: Condition: Item Type: Video Balun Color: Shown as Picture Material: Metal Compatible: HD-CVI,HD-TVI,HD-AHD Video Formats: NTSC,PAL, SECAM Frequency Response: DC to 60Mhz Attenuation: 0.5dB Type CMRR: 60dB Surge Protection: 4KV ESD: 8KV Impedance: BNC: 75ohms, RJ45: 100ohms Working Temperature: -10 -70 Storage Temperature: -30 -70 Humidity: 0-95% Type of wire required: Unshielded Cat-5 or above twisted pair cable (Please use standard Cat-5 or above twisted pair cable. The quality of the wire will directly affect the transmission image effect and transmission distance.) Characteristic impedance: 10020 DC loop resistance: 18/ 100m Differential capacitance: 62pf (maximum) Connection Method: Clamp modular plugs for a Cat-5 unshield twisted pair wire according to the connection order of TIA-EIA-568B, connect the clamped modular plugs to the RJ45 socket,connect the coax to the BNC. Package List: 1 x 8CH Passive Video Balun 1 x Manual Note: Please note that the type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 1HD video balun converts video signals into balanced signals for normal Cat-5 unshielded twisted pair transmission. 2With perfect transmission effect, it can be applied to video surveillance, video conferencing, etc. 3Can transmit four channels of video image simultaneous on an 8-core Cat-5 twisted pair wire. 4It can simplify the wiring project and save wire use quantity. 5Compatible with all HD-CVI,HD-TVI,HD-AHD. Up to 250m for 1080P AHD Cameras.