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Chapter 3. Menu Navigation
LED Descriptions
The Express 5210 front panel has seven LED indicators:
ETH
follows:
LED
TD
RD
ETH
TDN
RDN
ALM
TST
Possible Alarm Conditions
DDS Alarm Conditions
•
•
•
Frame Relay Alarm Condition
•
3-10
,
,
,
, and
TDN
RDN
ALM
TST
This LED is active when...
the
port is transmitting data.
DTE
the
port is receiving data.
DTE
the
10BaseT LAN
the network port is transmitting data.
the network port is receiving data.
an alarm condition exists. Alarm conditions are
described in the section following this table.
the unit is in network test mode initiated from the service
provider or from the remote end of a point-to-point DDS
circuit.
Open loop on network
No frame synchronization
OOS/OOF
Network frame relay signaling state down
Express 5210 User Manual
. These LEDs are identified as
port is transmitting or receiving data.
,
,
TD
RD
61200208L1-1
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