Cisco IPS-4255-K9 Installation Guide - Page 50

Site and Safety Guidelines Chapter 1 Introducing the Sensor Power Supply Guidelines Follow these guidelines for power supplies: • Check the power at the site before installing the chassis to ensure that the power is free of spikes and noise. Install a power conditioner if necessary, to ensure proper voltages and power levels in the source voltage. • Install proper grounding for the site to avoid damage from lightning and power surges. • The following applies to a chassis equipped with an AC-input power supply: - The chassis does not have a user-selectable operating range. Refer to the label on the chassis for the correct AC-input power requirement. - Several types of AC-input power supply cords are available; make sure you have the correct type for your site. - Install a UPS for your site. - Install proper site-grounding facilities to guard against damage from lightning or power surges. • The following applies to a chassis equipped with a DC-input power supply: - Each DC-input power supply requires dedicated 15-amp service. - For DC power cables, we recommend a minimum of 14 AWG wire cable. - The DC return connection to this system is to remain isolated from the system frame and chassis. Working in an ESD Environment Work on ESD-sensitive parts only at an approved static-safe station on a grounded static dissipative work surface, for example, an ESD workbench or static dissipative mat. To remove and replace components in a sensor, follow these steps: Step 1 Remove all static-generating items from your work area. Step 2 Use a static dissipative work surface and wrist strap. Note Disposable wrist straps, typically those included with an upgrade part, are designed for one time use. 1-32 Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.0 OL-18504-01