Cable Modem Troubleshooting: Terayon ECM110 / TJ110

Light patterns, images, manuals and more helpful info for the Terayon ECM110 / TJ110 cable modem –

Manufacturer: Terayon Model: ECM110 / TJ110
Terayon TJ110 / ECM110
Modem Light Indicators

Off – Modem is not receiving power.

On – Modem power is activated and receiving power.


Off – No cable connection detected.
Flashing – Searching for upstream/downstream signal.
On – Modem is acquired. Data can be sent.

PCOff – Ethernet cable is unplugged or Computer is not turned on.
On – Computer is detected.

Indicates activity over cable network. The light is off during times of no activity and flashing when activity exists.


Flashing while self test is in progress.

Notes and Useful Information:

Installation and User Manual

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