Vt100+ Terminal Emulation; Vt102 Terminal Emulation - Avocent Network Device SPC420 Installer/User Manual

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.
Table D.2: VT100+ Function Key Support
Function
Home
End
Insert
Delete *
Page Up
Page Down
F1 **
F2 **
F3 **
* 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.

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.3: VT102 Receive Codes
VT102 Receive Code
Delete Character (DHC)
Insert Line (IL)
Delete Line (DL)
Sequence
<Esc> h
<Esc> k
<Esc> +
<Esc> -
<Esc> ?
<Esc> /
<Esc> 1
<Esc> 2
<Esc> 3
Action
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.
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.
Deletes n lines starting with the line where the cursor is currently positioned. As
lines are deleted, lines below the cursor position move up.
Function
F4 **
F5
F6
F7
F8
F9
F10
F11
F12
Sequence
<Esc> 4
<Esc> 5
<Esc> 6
<Esc> 7
<Esc> 8
<Esc> 9
<Esc> 0
<Esc> !
<Esc> @