BLACK BOX
®
Power Over Ethernet Switch(PoE) Installation and User Guide
17
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
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.
Fig. 2.2e
