Express Entry Ethernet Switch LB9008A-FO-R2
8
LEDs
The array of LED indicators on the front panel conveys status and configuration information to help you monitor
and troubleshoot the switch.
The following figures illustrate the LED and functions of LB9008A-FO-R2.
100
LNK/ACT
FDX/COL
2
TX RX
Power
2
3
4
1
Figure 2: Port status display LEDs of LB9008A-FO-R2.
n
Port Status
100BASE-FX Ports
Each port has three LEDs to show status information. The LEDs are identified by a corresponding captions located
beside the LEDs on the port one.
LNK/ACT:
The link indicator is the top LED. It is illuminated whenever the port is connected to another working networked
device.
The LED flashes when the port is transmitting or receiving data.
100:
The middle LED shines whenever the switch detects that the corresponding port is connected to a 100BASE-TX
segment.
FDX/COL:
The lower LED is illuminated when the port is operating in full-duplex mode. When this LED is off, the port is
operating in half-duplex mode.
The LED flashes when the switch detects packet collisions on the port.
o
Power
This LED comes on when the switch is connected to a power supply and turned on.
p
TX/RX
TX:
Transmit Data
RX:
Receive Data
q
Dip Switch
Full-Duplex:
Toggle on to enable Full-Duplex mode for 100BASE-FX ports (Default setting).
Half-Duplex:
Toggle down to enable Half-Duplex mode for 100BASE-FX ports.