3Com DUA1860-0AAA01, LINKBUILDER MSH 4 PORT ETHERNET BRIDGE MODULE - page 19

DUA1860-0AAA01
The LinkBuilder MSH 4 Port Ethernet Bridge Module 1-5
Below its top ejector, the bridge has a panel of LEDs that indicate
bridge activity, as shown in Figure 1-3.
Each port has a row of three LEDs; transmit (TX), receive (RX) and
enabled (EN). Ports with numbers signify the Ethernet bus in the
LinkBuilder MSH chassis to which the port is connected. The
unnumbered row is for the external port, the Transceiver Module.
Figure 1-3 The Module’s LEDs
You can also use the LEDs to help with diagnosing faults on your
system, for more information refer to Using The LEDs For Fault
Diagnosis on page 6-3.