ARRIS DG1680A-TW Users Guide - Manual (Page 9)

Chapter 2: Safety Requirements
For Mexico
The operation of this equipment is subject to the following two conditions: (1) This
equipment or device cannot cause harmful interference and (2) this equipment or device
must accept any interference, including interference that may cause some unwanted
operation of the equipment.
Release 16 STANDARD 1.3 March 2015 Touchstone DG1680 Data Gateway User Guide 9