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Fast EtherHub 3500 System User’s Guide
Hardware Reference 5-3
There are four optional SmartExtender Modules as described
under
Connecting to a SmartExtender Module in Chapter 2. The
indicators provided with each module are described below.
EM3551-TX for 100BASE-TX or 10BASE-T
EM3551-T4 for 100BASE-T4
EM3551-FX-ST for 100BASE-FX
EM3551-FX-SC for 100BASE-FX
LED State Indication
100 ON Port is set at 100 Mbps.
OFF Port is set at 10 Mbps.
FDX ON Port is set for full-duplex operation.
OFF Port is set for half-duplex operation.
Col BLINKING Packet collisions, blinking is proportional to collision rate.
Link ON Port has a valid network connection.
Tx ON Port is transmitting packets.
Rx ON Port is receiving packets.
Table 5.3 SmartExtender Module Indicators
Interhub
Color: Green
Label:
Interhub
Function: Indicates a valid connection between hub and agent.
LED Activity Condition Indication
BLINKING LIGHT ON Hub has a valid connection to the Agent through
the FlexBus 3500 port on the backplane.
NO LIGHT OFF Hub is in a stand-alone configuration; or hub
does not have a valid connection to the network
system it monitors.
Table 5.4 Interhub Indicator