APPENDIX F: Terminal Modules and ASCII Terminal Setups
225
Byte 3 Switches
(Bit def. from
left to right)
Set To:
Comments
1 (# SWITCH)
0
Set to # character
2 (WRAP AROUND)
0
Disable automatic wrap-around function
3 (NEW LINE)
0
Disable New Line function
4 INTERFACE
0
Should be disabled
Byte 4 Switches
(Bit def. from
left to right)
Set To:
Comments
1 (PARITY SENSE)
—
This switch is only appropriate if Bit 2 is set. If so, ODD
PARITY = 0 and EVEN PARITY = 1.
2 (PARITY)
—
Set as desired (OFF = 0, ON = 1). If ON = 1 is set, then
Bit 1 must also be set to ODD or EVEN parity.
3 (BITS PER CHAR)
?
7 or 8 bits per character.
4 (POWER)
?
0 = 60Hz; 1 = 50Hz
The SETUP B mode screen lets you set the appropriate terminal baud rate. Available baud rates are 50,
75, 110, 134.5, 150, 200, 300, 600, 1200, 1800, 2000, 2400, 3600, 4800, 9600 and 19.2 kbps. Both the
transrnit baud rate and receive baud rate must be set to the same value. The baud rate specified here
must match the baud rate for the LinkUp 5294 port to which this terminal is connected. For all baud
rates lower than 150 bps (that is, 50, 75, 110, 134.5), the number of stop bits must be 2.
3. Connect the terminal to the LinkUp 5294 with a modem or direct-connect cable, as appropriate.
F.31 VT220 Terminal Module
The following list shows how the DEC VT220 keyboard is used in emulation of the 5251 keyboard.
1. Press <CTRL> with the indicated alpha key.
2. Press <ESC> prior to pressing the indicated alpha key.
5250 Function
Key Sequence
Hex Value Generated
Cursor Movement
Character Backspace
BACKSPACE
08H
or RUBOUT
07H
Cursor Up
up arrow
1BH 5BH 41H
Cursor Down
down arrow
1BH 5BH 42H
Cursor Left
left arrow
1BH 5BH 44H
Cursor Right
right arrow
1BH 5BH 43H
Field Advance
TAB
09H
Field Backspace
F12
1BH 5BH 32HY 34H 7EH
New Line
FIND
1BH 5BH 31H 7EH
Fast Left
CTRL/Z
1AH
Fast Right
CTRL/X
18H