Your Home Phone service is delivered to your home through a Digital Phone Terminal (DPT). On this page, you will find information that will help familiarize you with your Arris TM502.  

Note: While we have provided the following support information, we want to ensure that our customers receive the best possible support for their third-party hardware and software by speaking with the experts. The best way to resolve your third-party issue is to use support resources from the original manufacturer or developer. If the following information does not answer your question, please visit Arris Support.

Arris TM502 Phone Terminal - Front View

Here is a look at the front view of the Arris TM502 phone terminal:

Arris TM502 Phone Terminal

Arris TM502 Phone Terminal


Solid Green Light: the unit is receiving power.


Solid Green Light: the downstream channel is connected.


Solid Green Light: the upstream channel is connected.


Solid Green Light: Indicates that the Digital Phone Terminal is currently online.


Indicates a connection to a computer on either the ethernet or USB ports. This functionality is disabled.

Telephone 1/2

Solid Green Light: Indicates that the phone is connected and is currently "On-hook."


Flashing light indicates the line is currently "Off hook" or in use.


Solid Orange Light: Indicates that A/C power is available. If flashing, this indicates that the Digital Phone Terminal is operating in battery power.


Arris TM502 Phone Terminal - Rear View

Here is a look at the rear view of an Arris TM502 phone terminal:

Rear View

Arris TM502 Phone Terminal



Connects the Phone Terminal to a telephone, or telephone jack.

USB Connects the Digital Phone Terminal to an external device. The USB port on the Phone Terminal is disabled.

Connects the Phone Terminal to an Ethernet-equipped computer or third-party device (router, ethernet hub, etc.) This port is disabled.

Reset When held down for 15 seconds, this button will reset the Digital Phone Terminal.
Cable Connects the modem to the cable outlet using a coaxial cable.
Power Connects modem to the power supply.


Other Phone Terminals

If you have a Motorola SBV5120, Motorola SBV5220 or Arris TM502 instead, you can find information about those devices here:

Hardware Information - Motorola SBV 5120 Phone Terminal
Hardware Information - Motorola SBV 5220 Phone Terminal
Hardware Information - Arris TM602 Phone Terminal

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