Avocent SPC420 User Manual

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374        DSView 3 Software Installer/User Guide
VT100+ terminal emulation
The VT100+ emulation provides compatibility with the Microsoft headless server EMS serial port 
interface. The DSView 3 software Telnet Viewer VT100+ terminal emulation works identically to 
VT100, with the exception of support for the function keys listed in Table D.2.
VT102 terminal emulation
VT102 terminal emulation works identically to VT100 with additional support for decoding 
receive codes as described in Table D.3.
Table D.2: VT100+ Function Key Support
Function
Sequence
Function
Sequence
Home
<Esc> h
F4 **
<Esc> 4
End
<Esc> k
F5
<Esc> 5
Insert
<Esc> +
F6
<Esc> 6
Delete *
<Esc> -
F7
<Esc> 7
Page Up
<Esc> ?
F8
<Esc> 8
Page Down
<Esc> /
F9
<Esc> 9
F1 **
<Esc> 1
F10
<Esc> 0
F2 **
<Esc> 2
F11
<Esc> !
F3 **
<Esc> 3
F12
<Esc> @
* ASCII, VT52, VT100, VT102, VT220 and VT320 modes send hex 7F when the Delete key is pressed.
** VT100, VT102, VT220 and VT320 modes map the F1-F4 keys to the PF1-PF4 keys.
Table D.3: VT102 Receive Codes
VT102 Receive Code
 Action
Delete Character (DHC)
Deletes n characters starting with the character at the current cursor position, 
and moves all remaining characters left n positions. n spaces are inserted at the 
right margin.
Insert Line (IL)
Inserts n lines at the line where the cursor is currently positioned. Lines 
displayed below the cursor position move down. Lines moved past the bottom 
margin are lost.
Delete Line (DL)
 Deletes n lines starting with the line where the cursor is currently positioned. As 
lines are deleted, lines below the cursor position move up.