Touchstone™ TM501 Telephony Modem User’s Guide
31
Getting
Ethernet
Safety
Started
Installation
Configuration
Usage
Troubleshooting
Glossary
Indicator Lights
The Touchstone Telephony Modem has six LEDs to assist in troubleshooting.
Patterns: Normal Operation
The following table shows light patterns during normal operation.
The “Over Current Protection” mode means that the Telephony Modem has detected for-
eign voltage on the telephone line. Disconnect the telephone line from the Telephony
Modem and correct the problem (usually a wiring fault) before re-connecting the Tele-
phony Modem.
Mode
Power
DS
US
Online
Link
Telephone
AC Power
On
On
=
Connected
to the
Internet
Flash
=
Not
connected
to the
Internet
On
=
Connected
to the
Internet
Flash
= Not
connected
to the
Internet
On
=
Internet
Available
Off =
Internet
not
available
On
=
Computer
Connected
Off =
Computer
not
connected
Flash
=
Computer
Activity
On
=
On-hook
Flash
=
Off-hook
Off =
disabled
No AC Power
Off
Off
Off
Off
Off
Off
Software
Upgrade
On
Flash
Flash
On
(normal
operation)
(normal
operation)
Over Current
Protection
Flash
Flash
Flash
Flash
Flash
Flash
