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LED Meanings 4-3
LED Meanings Table 4-3 provides the meanings for the lit LEDs on a SuperStack II
bridge/router.
On On On On On Yellow Write to Flash File System failed.
Call your network supplier for assistance.
Table 4-2 System Software Load Errors (continued)
Status LEDs
1 2 3 4 Load LED Power/Fault LED Meaning and Action
Table 4-3 LED Meanings
Model No.
Associated
Connector
LED Meaning
323, 327,
or 52x
Unshielded twisted
pair (UTP) or shielded
twisted pair (STP)
16 MB The system is either attempting to enter or has successfully
entered the token ring at the rate of 16 MB. This LED will not
light if the system is either attempting to enter or has
successfully entered the token ring at the rate of 4 MB.
323, 327,
or 52x
UTP or STP Active The system is transmitting or receiving traffic.
323, 327,
or 52x
UTP or STP Fault The system is experiencing a problem with the token ring
connection. This LED resets if you reboot the system.
52x ISDN (D channel) Line Act The ISDN line is activated.
52x ISDN (D channel) Line Error Indicates a disconnected cable, or a loss of phantom power.
52x ISDN B1, B2 Link The path using B1 or B2 is up.
52x ISDN B1, B2 Connect An end-to-end B channel connection exists or is in progress.
52x ISDN B1, B2 Fault An error in the received frames is detected.
All V.35, Universal, or
RS-232
Link The path is up.
All V.35, Universal, or
RS-232
Active A physical connection to an active device has been established.
All V.35, Universal, or
RS-232
Fault An error in the received frames is detected.
All Not applicable Status Provides additional status for the Run, Load, and Test LEDs.
All Not applicable Run The system software has successfully loaded and started running.
All Not applicable Load The system software is being loaded.
All Not applicable Test The system is executing self-tests.
All Not applicable Fwd A packet is being forwarded between any two ports.
All Not applicable Power/
Fault
When the LED is green, the system has power and is
operational. When the LED is yellow, a problem is preventing
normal operation.
SS2TRHWBook Page 3 Monday, May 5, 1997 3:11 PM