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Installing and monitoring a 100Base-FX P1 feature module
Monitoring the indicator lamps
The port of the 100Base-FX P1 feature module has five indicator lamps,
labeled ERR, LINK, DPLX, DAT, and COL above the port connector.
ERR
The red ERR (error) indicator lamp always comes on when the WaveSwitch
100 is powered on. After the start-up self-tests are completed, the ERR
lamp normally goes off.
PTC217B
The ERR lamp stays on if the electrical loopback test failed.
LINK
The green indicator lamp labeled LINK is normally on when the
WaveSwitch 100 is connected to a powered 100-Mbps Ethernet station.
The lamp stays on to indicate that the port is connected and ready for
operation.
ERR
If the station to which the WaveSwitch 100 is connected is powered off, the
LINK
DPLX
lamp goes off.
DAT
COL
DPLX
The yellow DPLX (duplex) indicator lamp stays on when the connection is
operating in full duplex mode. The lamp stays off when the connection is
operating in half duplex mode.
1
The mode of operation of 100Base-FX P1 ports is set in the SWITCH.MIB
with the variable portFastEtherFullDuplexEnabled.
DAT
100BASE-FX
The yellow indicator lamp labeled DAT (data) comes on when the port is
receiving or transmitting data. Because the lamp responds to the flow of
data on the port, it normally comes on intermittently; however, if data traffic
on the port is heavy, the lamp can stay on for extended periods.
COL
The orange indicator lamp labeled COL (Collision) comes on when
outgoing (transmitted) data and incoming (receive) data collide. The lamp
goes off when the collision has been resolved on the port.
Other specifications
See "General specifications" on page 45.
28 WaveSwitch 100 Ethernet Switch User Manual
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