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Unsafe characters
URLs use some characters for “special use” in defining their syntax and these characters
should be encoded. For various reasons, these characters may possibly be misunderstood
within a URL.
The following table lists unsafe characters.
Character Hexadecimal Decimal
Space
20 32
“ ”
Quotation marks
22 34
<
“Less than” symbol
3C 60
>
“Greater than” symbol
3E 62
#
Pound
23 35
%
Percent
25 37
{
Left brace
7B 123
}
Right brace
7D 125
|
Vertical bar or pipe
7C 124
\
Back slash
5C 92
^
Caret
5E 94
~
Tilde
7E 126
[
Left bracket
5B 91
]
Right bracket
5D 93
`
Grave accent
60 96
Accessing and Using Telnet (Port 23)
Telnet, short for Telecommunications Network, provides a way for you to connect to a
computer or server (in this case, the PC1 interface) on a network. Once connected via
Telnet, you can send ASCII serial commands (see the Command and Response Table for SIS
Commands in the “SIS Programming and Control” section to configure and monitor the
PC1 settings).
1. From your desktop Start menu, select Run, then enter Telnet, then click OK. The
Telnet program starts (see the figure below).
Figure 38. Telnet Command Prompt
2. At the command prompt, enter open.
IPL T PC1 • HTML Configuration and Control 43