Nortel 1100 安装指导

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页码 218
24
    Preface
NN46110-317 02.01
Before you begin
This guide is intended for qualified service personnel who need to install or 
replace a field-replaceable unit (FRU) in the gateway chassis. A qualified service 
person must have appropriate technical training and experience and be aware of 
the hazards involved in installing or replacing FRUs.
Text conventions
This guide uses the following text conventions:
Acronyms
This guide uses the following acronyms:
Warning: If you improperly handle internal components or assemblies, 
with the power connected, you can cause severe personal injury.
bold Courier text
Indicates command names and options and text that 
you need to enter.
Example: Use the 
show health 
command. 
Example: Enter 
terminal paging 
{off on}
.
italic text
Indicates new terms and book titles.
plain Courier 
text
Indicates system output, for example, prompts and 
system messages.
Example:
 File not found.
separator ( > )
Shows menu paths. 
Example: Choose Status > Health Check. 
ADSL
asymmetric digital subscriber line
AES
Advanced Encryption Standard
CSU/DSU
channel service unit/digital service unit