ARRIS TM508 Installation Guide - Manual (Page 38)

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Touchstone Telephony Release 5 Standard 1.2 Mar 2007
Patterns: Normal Operation
The following table shows LED patterns for the Telephony Modem
during normal operation.
Operating
Mode
Power DS US Online Link
Tel. 1 – 12
(or Tel. 1 – 8)
AC Power
Good
On
On =
Online
Flash =
Off-line
On =
Online
Flash =
Off-line
On =
network
available
Off =
network not
available
On = CPE
Connected
Off = CPE
disconnected
Flash = CPE
Activity 1
On =
On-hook
Flash = Off-hook
Slow Flash 2 =
Line card error
Off = disabled
AC Power Fail Flash Off Off Off Off
On =
On-hook
Flash = Off-hook
Slow Flash = Line
card error
Off = disabled
Firmware
Upgrade
x
3
Flash Flash On x x
Line Card
Protection
State
4
Flash Flash Flash Flash Flash Flash
1. This state is valid only if the Telephony Modem is online.
2. Slow Flash is 1 flash per second.
3. An x indicates the LED state reflects the “AC Power Good” or “AC Power Fail” status.
4. Line Card Protection indicates foreign voltage present on one or more lines.