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Front Panel 16
Model 3231 User Manual 1 • General information
LEDs
The Model 3231 contains nine LEDs on the front panel. All LEDs will blink twice when the unit is first pow-
ered on.
Note
You can test the operation of certain LEDS using the CLI.
For more information, see “CLI Commands” on page 24.
Table 3. Model 3231 LEDs
LED Color Purpose
PWR/ALM Green/Red
•
Green when power is applied and alarm state is clear
•
Red when alarm state is not clear
CPE Green
•
On when configured as DSL CPE
•
Off when configured as DSL CO
*Note: The Restart DSL menu item must be selected after chang-
ing between CO and CPE in order for the LED to change. *
DSL Link Green
•
On when DSL link is up
•
Flashes when DSL link is connecting
•
Off when DSL link is down
DSL TX Green
•
Flashes when transmitting data over DSL
DSL RX Green
•
Flashes when receiving data over DSL
Ethernet Link Green
•
On when Ethernet link is up
•
Off when Ethernet link is down
Ethernet 100M Green
•
On when Ethernet link negotiates to 100 Mbps
•
Off when Ethernet link negotiates to 10 Mbps
Ethernet TX Green
•
Flashes when transmitting an Ethernet packet
Ethernet RX Green
•
Flashes when receiving an Ethernet packet