Passive Audio CCTV Balun Twisted Transmitter Power Supply for HDCVI HDTVI AHD Camera Features: Innovative combination design,compact size and easy installation, built in transient suppression protection. ABS plastic case, power indicator, real-time display of power supply status,no power is needed. 60dB crosstalk and noise immunity,high transmitter quality. Compatible for all HD-CVI, HD-TVI, HD-AHD. Support HD-CVI/AHD/TVI analog HD cameras and analog PDU cameras at the same time. The 720P / 1080P TVI camera can reach 250 meters. The 720P AHD camera can reach up to 320 meters. Specifications: Type: JR-HD501PV  Shell Material: ABS Color: Black Frequency Response: DC to 60Mhz Attenuation: 0.5dB type Video Formats: NTSC, PAL and SECAM CMRR: 60dB Surge Protection: 4KV ESD: 8KV Connectors: Male BNC and "Prees-Fit" Terminal blocks Impedance: BNC: 75 ohmas Terminal: 100 ohms Working Temperature: -10 ℃ to +70 ℃ Storage Temperature: -30 ℃ to +70 ℃ Humidity: (non-condensing) 0-95 Percent Size: Approx.4.2*2.9*1.9cm/1.7*1.1*0.7in  Cable Length: Approx.11.6cm/4.6in Package Weight: 71.0g/2.5oz Package List:  1 Pair * Video Transmitter Power-Distance Chart: Using PVD product, cameras can be powered at extended distances, please refer to the chart below for more information. 100 mA Camera: 300m 700m 300m. 300 mA Camera: 100m 230m 100m. 500 mA Camera: 60m 140m 60m. Notes: 1. RJ45 Video Balun is not waterproof, for indoor use only. 2. Make sure the RJ45 for Camera Side and DVR Side are the same standard. Wrongfully mixing the colors may result in burning the camera and devices.