Black Box® Heavy Duty Edge Switches Installation and User Guide(07/05)
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4.3 Dual LEDs, Front-panel and side-panel
(Black Box Heavy-Duty LBHXXX)
LED Description
PWR Illuminates GREEN to indicate power applied.
LK/ ACT Steady ON for LINK w/no traffic, blinking for activity per port. LINK will turn
off in the event connectivity is lost between the ends of the twisted pair segment
or a loss of power occurs in the unit or remote device. The Link ports are also
represented by LA1, LA2, LA3…LA6. (Steady On or steady Off indicates no
Receive Activity).
10/100 Steady ON for 100Mb speed, OFF for 10Mb speed per port (copper ports)
F/H (FH1, FH2) Steady ON for Full duplex (F/D) mode, OFF for Half duplex (H/D)
mode per port (For fiber port only)
NOTE: The port#1 and 2 is being assigned for copper or fiber port for different models. On
all copper 10/100 ports model (e.g LBHXXXA), the LEDs 10 or 100 denotes for
copper port only. For the model 4copper +2 fiber or 5copper +1fiber,(e.g
LBHXXXA(E)-H-xx-yy) the xx denotes for fiber port only.