BLACK BOX
®
Power Over Ethernet Switch(PoE) Installation and User
Guide
v
3.4 DIN-Rail mounting option................................................................. 31
3.5 Power Requirement for Black Box LP004A Power Source Switch .. 32
3.6 Powering the LP004A Series (DC internal) with –48VDC power input33
3.7 LP004A , DC-powered, -48VDC Installation................................... 35
3.8 Connecting Ethernet Media ............................................................... 36
3.8.1 Connecting Twisted Pair (RJ-45, CAT 3 or CAT 5) ................. 37
3.8.2 Connections to NICs which support Auto-Neg RJ-45 ports...... 38
4.0 OPERATION ....................................................................................... 39
4.1 Dual-Speed Functionality, and Switching ......................................... 39
4.2 Auto-cross (MDIX), Auto-negotiation and Speed-sensing................ 41
4.3 Dual LEDs, Front-panel and side-panel (LP004A Series)............... 42
5.0 TROUBLESHOOTING ...................................................................... 43
5.1 Before Calling for Assistance ............................................................ 44
5.2 When Calling for Assistance ............................................................. 45
5.3 Return Material Authorization (RMA) Procedure............................. 47
