User's Manual

User’ s Manual
Page 8
Diagnostics
The TurboComm Cable Modem has five status LEDs for diagnostics. You can monitor the
LEDs during installation and power on.
Table 1 shows TurboComm Cable Modem status LEDs and identifies what each LED light
means. This table will help you to diagnose problems.
Function Color Definition
Power Green - dark for power off
- solid for power on
Cable Green - dark for no downstream RF carrier present or power off
- flashing slowly for downstream RF carrier present and ranging in
progress
- flashing fast for registration in progress
- solid for the Cable Modem registered and ready to transfer data
PC Green - dark for no Ethernet carrier present or power off
- solid for Ethernet carrier present
Data Green - dark for no user data going through the Cable Modem or power
off
- flashing for user data going through the Cable Modem
Test Amber - dark for initial self-test of the Cable Modem OK or power off
- flashing for initial self-test of the Cable Modem in progress or
software down loading of the Cable Modem in progress
- solid for self-test failure of the Cable Modem
Table 1 Status LEDs