Black Box LP004A manual Dual-Speed Functionality, and Switching

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BLACK BOX→ Power Over Ethernet Switch(PoE) Installation and User Guide

4.0OPERATION

4.1Dual-Speed Functionality, and Switching

The LP004A Series Power over Ethernet (PoE) Switch provide four switched ports (three ports in the front and one on the rear). The architecture supports a dual speed switching environment, with standard auto-negotiation capability.

The switched RJ-45 ports are full- or half-duplex auto-sensing for mode and speed, and auto-cross for plug polarity. When the connected device is 10 Mbps, the LP004As obeys all the rules of 10 Mbps Ethernet configurations. The 10 Mbps users can “communicate” with 100Mbps users as well as other 10 Mbps users through the switch. Similarly, the 100Mbps traffic obeys the rules of 100Mbps Ethernet, and can communicate with 10 Mb and 100Mb users.

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Contents Power over Ethernet PoE Switch January2006 LP004ATrademarks Phone 724 Contacting Black Box CorporationIii Page Page Page Vii Page Page Specifications Operation Revisions Ports Performance Network StandardsOperating Environment Ambient Temperature ratings Storage TemperatureMaximum Ethernet Segment or Domain Lengths Cold StartPackaging Cooling MethodPower Supply Temperature un-controlled Extreme Ratings -40 to 75CPort Connectors LED Indicators Dual front and topMounting options Agency Approvals and Standards ComplianceAccessories Summary of models and descriptions LP004A SeriesInspecting the Package and the Product Product Description LP004A Series Page Page Page Page Black Box LP004A with four RJ-45 Copper ports Page Black Box LP004A, as shown in is Black Box LP004A-Series, with four RJ-45 Copper ports Frame Buffering and Latency Page Page Two sets of LEDs for viewing status from any angle DC Power input for LP004A PoE Switch Rugged metal case, Industrial gradePage Example 4b. LP004A Power Source Switch for PoE device only VideoPage NCM Locating the PoE Switch Unit Page Page Page DIN-Rail mounting option LP004A is shown alongside DIN-Rail-MC2 bracketPower Requirement for Black Box LP004A Power Source Switch Power Output DC Power Terminals +, -, gnd Power Consumption of the unitLP004A , DC-powered, -48VDC Installation Connecting Ethernet Media GND can be hooked up at the lastMedia Ieee Standard Connector Page Dual-Speed Functionality, and Switching Switching, Filtering and Forwarding Switching, Address Learning Auto-cross MDIX, Auto-negotiation and Speed-sensingPage Troubleshooting Before Calling for Assistance When Calling for Assistance