Figure 78, Led display panel, Table 42 – Nortel Networks 1000ASE-XD User Manual
Page 174: Baystack 420 switch led descriptions
174
Chapter 4 Troubleshooting
209418-A
Figure 78 LED display panel
Table 42 BayStack 420 Switch LED descriptions
Label
Type
Color
State
Meaning
Power
On
Power status
Green
On
DC power is available to the switch’s internal circuitry.
Off
No AC power to switch or power supply failed.
Cascade
Up
Stack mode
Off
The switch is in standalone mode.
Green
On
The switch is connected to the upstream unit’.
Cascade
Down
Stack mode
Off
The switch is in standalone mode.
Green
On
The switch is connected to the downstream unit.
Base
Base mode
Green
On
The switch is configured as the stack base unit.
Off
The switch is not configured as the stack base unit (or is
in standalone mode).
Amber
Due to a stacking error the unit is unable to maintain the
stack connection.
10/100
Link/
Activity
10/100 Mb/s
port speed
indicator
Green
On
The corresponding port is set to operate at 100 Mb/s, and
the link is good.
Amber
On
The corresponding port is set to operate at 10 Mb/s, and
the link is good.
Off
The link connection is bad, or there is no connection to
this port.
9991EA
1
3
5
7
9
11
13
15
17
19
21
23
2
4
6
8
10
12
14
16
18
20
22
24
10/100 Link Activity
HDX/FDX
12/100 Link Activity
HDX/FDX
Base
Unit Set
BayStack 420-24T Switch