XL-12000S
MANAGED,HIGH-SPEED NETWORK MODEM USER GUIDE
5.0 Panel Indicators and Connectors
This section describes the indicators and connectors on the front and
rear of the XL-12000S modem.
5.1 Front Panel Indicators
Figure 5.1 shows the LED indicators that provide status and opera-
tional information on the XL-12000S Modem.
Power LED
The blue Power LED remains lit while the unit has power.
Activity LEDs
The DSL RX and DSL TX LEDs flash green when receiving and
transmitting data.
Status LED
At power up, the Status LED flashes red while the modem performs
a diagnostic self-test and performs software decompression. After the
modem completes its self-test, the LED will extinguish, indicating
that the modem is ready for normal operations.
The Status LED will flash red when software is being downloaded
during subsequent maintenance activity. Steady red indicates unit
failure; refer to the “Troubleshooting” section of this manual.
DSL Link
A flashing DSL link LED indicates that the modem is in the process
of linking to the other modem. After the two XL-12000S units have
secured the DSL link, the DSL Link LED glows a steady green. The
LED is off when there is no link. If the link remains off, refer to the
“Troubleshooting” section of this manual (section 10.0).
5.0 PANEL INDICTORS AND CONNECTORS TUT SYSTEMS 7