User Guide

Front panel layout
Five front panel LEDs
AppendixB Speed Touch Specifications
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3EC 36231 ABAA TCZZA Ed. 01
B.1 Front Panel Layout and LED Description
All STPro models have a similar front panel:
The STPro is equipped with 5 LEDs on its front panel, indicating
the state of the device:
Indicator
Description
Name Color State
LAN Green Flashing Data is flowing from/to the
Ethernet port(s).
Off No activity on the Ethernet
port(s).
Line TX Green Flashing ATM cells are being sent over the
DSL line.
Off No transmission activity.
Line RX Green Flashing ATM cells are being received via
the DSL line.
Off No reception activity.
Line Sync Green Flashing During initialization of the DSL
line.
On DSL line synchronization
achieved.
PWR/Alarm Green On Power on, normal operation.
Amber On Power on, Startup failed.
Red Flashing Power on, POST(*) pending.
On Power on, POST(*) failed.
(*) Power On Self Test (POST)