This document establishes environmental performance criteria for Customer Premises Equipment (CPE), such as Telephones, Modems, Multi-line systems, Routers, Set top Boxes, Alarm Systems, etc. It defines the physical and electrical conditions under which the equipment shall continue to demonstrate basic functionality.

This performance document may cover some topics addressed in regulatory or safety documents. Compliance to this document is not intended to infer regulatory or safety compliance.

This document does not include the following types of equipment: Stationary equipment such as Central Office Switches, Digital Subscriber Line Access Multiplexers (DSLAM) or PBX equipments, IP Gateways, etc.