•
Do not wear loose clothing that may get caught in the chassis.
•
When working under conditions that may be hazardous to your eyes, wear safety glasses.
Safety Precautions for Module Installation and Removal
To see the safety precautions for module installation and removal, see the
Regulatory Compliance and Safety
Information for the Cisco ASR 920 Series Aggregation Services Router
document.
Safety with Electricity
To see the safety with electricity, see the
Regulatory Compliance and Safety Information for the Cisco ASR
920 Series Aggregation Services Router
document.
When working on equipment powered by electricity, follow these guidelines:
•
Locate the room
’
s emergency power-off switch. If an electrical accident occurs, you will be able to
quickly turn off the power.
•
Before starting work on the system, turn off the DC main circuit breaker and disconnect the power
terminal block cable.
•
Before doing the following, disconnect all power:
◦
Working on or near power supplies
◦
Installing or removing a router chassis or network processor module
◦
Performing most hardware upgrades
•
Never install equipment that appears damaged.
•
Carefully examine your work area for possible hazards, such as moist floors, ungrounded power extension
cables, and missing safety grounds.
•
Never assume that power is disconnected from a circuit; always check.
•
Never perform any action that creates a potential hazard to people or makes the equipment unsafe.
•
If an electrical accident occurs, proceed as follows:
◦
Use caution, and do not become a victim yourself.
◦
Turn off power to the router.
◦
If possible, send another person to get medical aid. Otherwise, determine the condition of the
victim, and then call for help.
◦
Determine whether the person needs rescue breathing or external cardiac compressions; then take
appropriate action.
In addition, use the following guidelines when working with any equipment that is disconnected from a power
source, but still connected to telephone wiring or network cabling:
•
Never install telephone wiring during a lightning storm.
Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide
21
Preparing for Installation
Safety Precautions for Module Installation and Removal
