BLACK BOX
®
Power Over Ethernet Switch(PoE) Installation and User Guide
10
temperature components, premium-rated LP004A switches are suitable for use in sheltered
outdoor locations and temperature-uncontrolled environments with a temperature rating of
–40°C to 75°C.
The Black Box LP400A PoE Switch is in fact act like a Power source
Switch, combines standard 802.3af Power over Ethernet (PoE) with a small heavy duty 4-
port Industrial Switch. Using an external -48vdc power source, all four of the LP004A’s
Ethernet ports can provide Power as well as 10/100 Mb data transmission over the inter-
connecting Ethernet cables. So a single Ethernet twisted pair cable will be able to transmit
voice, data and power from the attached devices.
The LP004A switches are Power Sourcing Equipment (PSE), and are fully compatible with
Powered Devices (PD) (e.g wireless access points, IP phones) that comply with the IEEE
802.3af PoE standard. The LP004A switch ports have an auto-sensing algorithm, so that