Ethernet Over Coax Adapters with PoE/PoC Accelerate IP Camera Deployment Summary The surveillance camera market is steadily moving from analog to digital. The reasons are clear: better imaging, intelligent image processing and the benefits of fully networked integrated solutions. Many digial camera support IP-based communication and are designed to connect to network video recorders (NVRs) or video servers over Cat 5 or Cat 6 Ethernet cables. But why waste perfectly functional 75Ω coaxial video cabling just to go digital? Microchip’s Ethernet over coax media adapter allows 100Base-T standard-definition and high-definition megapixel IP cameras to use coax cabling to transmit IP-based communications to the NVR, servers or switches. Reusing the cable infrastructure also allows the analog-to-digital transition to be done one camera at a time as needed. Microchip’s Ethernet over coax adapters uniquely provide Power over Ethernet (PoE) bridging over the coax link to provide ample power (PoC) for remote devices, eliminating the need to bring separate power cables to cameras in remote locations. Features ■ Uses legacy analog video cabling (75Ω coax) ■ Fully transparent 100Base-T full duplex Ethernet including link status pass-through ■ Full 100 Mbps FDX over 250 meter coax runs* • Can be concatenated using repeaters for even longer cable runs ■ Supports 10/100Base-T Ethernet standarddefinition and high-definition video camera including PoE-powered devices ■ Optional DC power pass-through for remote powering of low-voltage cameras ■ Small 70 mm × 37 mm enclosure can be wall mounted or the board—without enclosure—can be placed inside the camera enclosure Microchip’s Ethernet over Coax adapters (EQCOFastECoax7501) are installed in pairs. The Head-End adapter takes conventional 100Base-T Ethernet from the NVR and passes it through the PoE-compliant Ethernet switch, or a PoE injector, to the Camera-Side unit. It can be optionally powered by an AC adapter. Power and bidirectional data is passed over the coax cable to the Camera Side adapter at the far end which optionally powers the camera. *Subject to maximum cable attenuation, see back for details. Technical Specifications Coax Interface Connectors Cable Impedance Connector/Coax Return Loss Data Throughput Aux Interface Connector (Head End) Connector (Camera Side) Cable Type Rates Supported BNC True 75Ω 75Ω ± 3Ω Return Loss > 25 dB @ 1–200 MHz 200 Mbps (Simultaneous 100 Mbps in both directions (for all cable lengths) RJ45 (PoE Device Compliant) RJ45 (PoE PSE Compatible) Category 5 or above, Straight through or cross over (Auto MDI/MDIX) 100Base-T/10Base-T, full/half duplex. Virtual wire operation with AutoNegotiation to match best capabilities of network equipment at each end Power Supply Input (Head End Input) PoE via RJ45 Fully IEEE 802.3af Power over Ethernet Standard Compliant, nominal 48 V Min. 12 Vdc, Max. 48 Vdc (inner positive) PoE on RJ45 is disconnected if DC power applied via Aux Power first DC Feed via Aux Power Connector Min. 24V recommended if camera is to be powered Power Supply Output (Camera Side Output) PoE via RJ45 PoE Compatible, Vin @ Head End −2V-Coax DC drop (varies with cable type/length) Vin @ Head End −2V-Coax DC drop per hop (varies with cable type/length) DC Feed via Coax PoE on RJ45 is disconnected when DC output is used Environmental Operating Temperature 0°C to +50°C Relative Humidity Up to 85% non-condensing Storage Temperature −20°C to +70°C Performance Specifications Performance by Coax Type RG6 Sample 1 (5.5 dB/100m) (Belden 1694A) RG6 Sample 2 (5.5 dB/100m) (Carol Brand) 5C-HFBT Sample (4.7 dB/100m) (Amphenol) RG59 Sample (8 dB/100m) 3C-2V Sample 1 (10 dB/100m) (Hangzhou Linan Tongda Cable Co., Ltd.) 3C-2V Sample 2 (8 dB/100m) (Hangzhou Huadi Cable Co., Ltd.) RG11 Sample (3.3 dB/100m) (CommCcope F1160BVV) Max. Coax Length for Error-Free Operation 180 meters/ 580 feet 180 meters/ 580 feet 210 meters/ 680 feet 125 meters/ 400 feet 100 meters/ 325 feet 125 meters/ 400 feet 250 meters/ 800 feet Cable/Power Budget 48V DC Adapter 24V DC Adapter 18W 11W 13W 1.8W 18W 11W 19W 13W 19W 13W 19W 14W 18W 8.7W www.microchip.com Visit our web site for additional product information and to locate your local sales office. Microchip Technology Inc. • 2355 W. Chandler Blvd. • Chandler, AZ 85224-6199 Information subject to change. The Microchip name and logo and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are property of their respective companies. © 2014, Microchip Technology Incorporated. All Rights Reserved. Printed in the U.S.A. 2/14 DS00001675A