BLACK BOX→ Power Over Ethernet Switch(PoE) Installation and User Guide
for cooling. Mounting options include panel-mounting, DIN-rail, or rack-mount tray. Choices of models for external AC or internal DC powers are available. Ambient temperature rating is –40°C to +75°C for any of the power input types, AC or DC.
2.4 Black Box LP004A-Series, with four (RJ-45) Copper ports
Fig. 2.2e
The Black Box LP004A-Series chassis houses one main PC board. The power
supply is an external AC unit or internal DC via a screw terminal block. The front side of the chassis has three twisted-pair switched ports and one port is provided on the rear side. All the four ports of the LP004A-Series PoE switch supports auto-cross (MDIX), and perform the auto-cross in the auto- negotiation mode as well as fixed mode.
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