Indicator Lights: Normal Operation
The following table shows light patterns during normal operation. If colors are not
indicated, they do not affect the status.
Note 1: Your cable company may configure the Telephony Modem to always display
the DS, US, and Link indicators in green regardless of the connection speed.
Note 2: If you have computers connected to both the USB and Ethernet ports, the
Link indicator is green only if both connections are high-speed (USB 2.0 and
1000 BaseT Ethernet).
Mode Power DS US Online Link
Tel. 1/
Tel. 2
Battery
AC Power
Good
On
Yellow
1
=
Connected
to the
Internet
(high
speed)
Green
1
=
Connected
to the
Internet
(ultra-high
speed)
Flash = Not
connected
to the
Internet
Yellow
1
=
Connected
to the
Internet
(high
speed)
Green
1
=
Connected
to the
Internet
(ultra-high
speed)
Flash = Not
connected
to the
Internet
On =
Internet
Available
Off =
Internet not
available
Yellow
2
=
USB 1.x or
10/100 BaseT
Ethernet
connected
Green
2
=
USB 2.0 or
1000 BaseT
Ethernet
connected
Off =
Computer not
connected
Flash =
Computer
Activity
On =
On-hook
Flash =
Off-hook
Off =
disabled
On = Battery
good or low
Off = Battery
missing or
MTA not
registered
Flash =
Battery bad
No AC
Power
Battery
Installed
Flash Off Off Off Off
On =
On-hook
Flash =
Off-hook
Off =
disabled
Off = Battery
power
Flash =
Battery bad
or low
No AC
Power
No Battery
Off Off Off Off Off Off Off
Firmware
Upgrade
On Flash Flash On
(normal
operation)
(normal
operation)
(normal
operation)
Touchstone TM722 Telephony Modem User’s Guide
Safety
Getting
Started
Battery
Installation Installation
USB
Drivers
Ethernet
Configuration Usage Troubleshooting Glossary
60
