Dell PowerEdge 7250 - Manual (Page 72)

70 Terminal Mode Commands
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m Each terminal mode message must be preceded with the left bracket "start” character and must be
ended with a right bracket “stop” character and the appropriate input new-line sequence.
No input characters are accepted until the start character has been received.
Terminal mode text commands are case sensitive, but hex-ASCII commands can either use upper
or lower case letters for ASCII representations of hex digits.
Command Length
Terminal mode messages are limited to a maximum length of a 122 characters. This includes the
left and right brackets, but not control characters.
Character Support
Terminal mode messages are allowed to be composed of standard printable ASCII characters. All
other characters are treated as illegal characters.
Special Character Handling — <ESC> character
The <ESC> character can be used to delete an entire message prior to submission to the BMC for
processing. If line editing is enabled, and the <ESC> key is followed by an input newline
sequence, the BMC responds by outputting an output newline sequence. Otherwise, the BMC
goes back to looking for the start character.
Special Character Handling — <DEL> or <BKSP> character
The <BKSP> or <DEL> key can be used to delete the last character entered if the message has
not been submitted to the BMC yet.
Special Character Handling — Line Continuation character
Long IPMI messages can be split across multiple lines by using the line continuation
<BACKSLASH> character followed immediately by an input newline sequence. Line
continuation character usage is supported for both text and hex-ASCII commands.
Special Character Handling — Illegal characters
Any illegal characters received by the BMC clears the message in progress and forces the BMC back
to looking for the start character.
Hex-ASCII Command Format
Binary IPMI commands are sent and received as a series of case insensitive hex-ASCII pairs, where
each is optionally separated from the preceding pair by a single <space> character. The following
is an example of a binary IPMI request message:
[18 00 22]<newline sequence>