Cisco Cisco IPS 4255 Sensor 설치 가이드
Americas Headquarters:
© 2009 Cisco Systems, Inc. All rights reserved.
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
Removing and Installing Interface Cards in Cisco
IPS-4260 and IPS 4270-20
IPS-4260 and IPS 4270-20
This document describes the IPS interface cards and how to install them in IPS-4260 and IPS 4270-20.
It contains the following sections:
It contains the following sections:
•
•
•
•
•
•
•
•
•
Electrical Safety Guidelines
Warning
Before working on a chassis or working near power supplies, unplug the power cord on AC units;
disconnect the power at the circuit breaker on DC units.
disconnect the power at the circuit breaker on DC units.
Follow these guidelines when working on equipment powered by electricity:
•
Before beginning procedures that require access to the interior of the chassis, locate the emergency
power-off switch for the room in which you are working. Then, if an electrical accident occurs, you
can act quickly to turn off the power.
power-off switch for the room in which you are working. Then, if an electrical accident occurs, you
can act quickly to turn off the power.
•
Do not work alone if potentially hazardous conditions exist anywhere in your work space.
•
Never assume that power is disconnected from a circuit; always check the circuit.
•
Look carefully for possible hazards in your work area, such as moist floors, ungrounded power
extension cables, frayed power cords, and missing safety grounds.
extension cables, frayed power cords, and missing safety grounds.