Tr Oubleshooting Information; Front Panel Leds; Po Wer-On Self Test Failure Patter N - Arris Touchstone TM608 Installation Manual

3

Front Panel LEDs

Po wer-On Self
Test Failure Pat-
tern
This chapter describes troubleshooting features.
The front panel LEDs provide information about DOCSIS and telephony sta-
tus.
The LED patterns shown in this section are valid for the default firmware ver-
sion installed on the Telephony Modem. See the Tr oubleshooting Guide cor-
responding to the actual firmware installed for updated LED patterns.
When a Telephony Modem fails power-on self test (POST), it repeats the fol-
lowing sequence:
• POWER LED on for 2 seconds; other LEDs off
• All LEDs flash rapidly (10 times per second) for 10 seconds
A Telephony Modem repeatedly displaying this sequence is defective and
should be replaced.
TM608 Installation Guide Release 6 Standard 1.0 December 2008
Tr oubleshooting
Information