Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface. Use caution when installing or modifying telephone lines. Preventing Electrostatic Discharge Damage Electrostatic discharge damage, which can occur when electronic boards or components are handled improperly, can result in complete or intermittent failures. When removing or installing a component, connect the equipment end of a ground strap to one of the two ESD ground sockets located on the front sides of the upper card cage or to a bare metal surface on the frame. Damage from static discharge can cause immediate or intermittent equipment failure.
Caution Be sure to check the resistance value of the antistatic strap periodically.
The measurement should be between 1 and 10 megohms. This section describes the requirements your site must meet for safe installation and operation of your Cisco ONS 15104. Ensure that your site is properly prepared before beginning installation. The location and the layout of your equipment rack are extremely important for proper system operation when you mount the Cisco ONS 15104 in the rack. Equipment placed too close together can cause inadequate ventilation, and can cause system malfunctions and shutdowns.