Black Box Mixed-Media Fiber Hubs
Installation and User Guide (4/99)
36
4.4 Chassis
LEDs
The Black Box LH8050A is equipped with six LEDs located on the front of the
chassis unit (see Figure 2.3b). These LEDs are Power (PWR), Bridge(BRD), Collision (COL)
and Activity (ACT) for 10 and 100Mbps speed. They are used to provide visual indication
about the operational condition and traffic activity of the LH8050A unit and its associated PM
cards.
LH8050A chassis unit LEDs
LED Description
PWR
Illuminates GREEN to indicate that the unit is receiving power.
BR
GREEN, Steady ON, unit has bridge inside
COL
Flashes YELLOW to indicate a collision, one each for 10 and
100Mbps
ACT
Flashes for packet activity, one each for 10 and 100Mbps domains
