Indicator Lights for the TM601A/B Models
The Touchstone Telephony Modem has six LEDs to assist in troubleshooting.
Wiring Problems
If the Telephony Modem begins flashing all its lights for more than 10 seconds, this
indicates a problem with the telephone wiring—the red and green wires may be
shorted (touching), or there may be undesired voltage on the lines. If this pattern
persists for more than 10 seconds, disconnect the telephone lines from the Tele-
phony Modem, then call a wiring technician for assistance.
Indicator Lights: Normal Operation
The following table shows light patterns during normal operation.
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
Firmware
Upgrade
On
Flash
Flash
On
(normal
operation)
(normal
operation)
Touchstone TM601 Telephony Modem User’s Guide
Safety
Getting
Started
Installation
Ethernet
Configuration
Usage
Troubleshooting
Glossary
37
To
uchst
one
Te
lephon
y
Mo
d
em
