Black Box LP004A Maximum Ethernet Segment or Domain Lengths, Storage Temperature, Cold Start

Page 15

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

Packet buffers memory: 128KB, dynamically shared on all domains

Latency (not including packet time): 100 to 10 Mbps: 5∝s 10 to 100Mbps: 15∝s

Path Delay Value: 50 BT on all ports

Maximum Ethernet Segment (or Domain) Lengths
10BASE-T (Unshielded twisted pair)	- 100 m (328 ft)
100BASE-TX (CAT 5 UTP)	- 100 m (328 ft)

Operating Environment :

Ambient Temperature ratings

LP004A: -40ºF to 167ºF (-40ºC to 75ºC) Long term per agency tests (UL). -40ºF to 212ºF (-50ºC to 100ºC) Short term per IEC Type tests.

Storage Temperature,

All models: -40ºF to 185ºF (-40ºC to 85ºC)

Cold Start:

LP004A to -40ºC

Ambient Relative Humidity: 5% to 95% (non-condensing)

2

Image 15

Contents January2006 LP004A Power over Ethernet PoE SwitchTrademarks Contacting Black Box Corporation Phone 724Iii Page Page Page Vii Page Page Specifications Operation Revisions Network Standards Ports PerformanceCold Start Operating Environment Ambient Temperature ratingsStorage Temperature Maximum Ethernet Segment or Domain LengthsCooling Method PackagingTemperature un-controlled Extreme Ratings -40 to 75C Power SupplyLED Indicators Dual front and top Port ConnectorsAgency Approvals and Standards Compliance Mounting optionsSummary of models and descriptions LP004A Series AccessoriesInspecting 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 Rugged metal case, Industrial grade DC Power input for LP004A PoE SwitchPage Video Example 4b. LP004A Power Source Switch for PoE device onlyPage NCM Locating the PoE Switch Unit Page Page Page LP004A is shown alongside DIN-Rail-MC2 bracket DIN-Rail mounting optionPower Requirement for Black Box LP004A Power Source Switch Power Output Power Consumption of the unit DC Power Terminals +, -, gndLP004A , DC-powered, -48VDC Installation GND can be hooked up at the last Connecting Ethernet MediaMedia Ieee Standard Connector Page Dual-Speed Functionality, and Switching Switching, Filtering and Forwarding Auto-cross MDIX, Auto-negotiation and Speed-sensing Switching, Address LearningPage Troubleshooting Before Calling for Assistance When Calling for Assistance