Indicator Lights for the TM722A/B/S Models
The Touchstone Telephony Modem has seven indicator lights to assist in trou-
bleshooting.
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 dis-
play the DS, US, and Link indicators in green regardless of the connec-
tion 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
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
No AC Power Off Off Off Off Off Off
Firmware
Upgrade
On Flash Flash On
(normal
operation)
(normal
operation)
Touchstone TM722 Telephony Modem User’s Guide
Safety
Getting
Started
Battery
Installation Installation
USB
Drivers
Ethernet
Configuration Usage Troubleshooting Glossary
57
