Wang 2x36 series

(KTERM=wang or KTERM=w2236)

The Wang 2536 terminal has optional XON/XOFF flow control and can be connected to any UNIX CPU but 2x36 terminals previous to the 2536 can only use the 2200 proprietary flow control protocol. Flow control is a convention whereby a terminal can regulate the flow of characters to its screen or printer by sending special reserved characters to the CPU to stop and start the flow. The old Wang 2x36 terminal used four such characters but industry standard terminals use just two. Wang style flow control has been implemented by the manufacturer on some UNIX machines specifically to support KCML (e.g. Altos 1000, CCI6/32, ICL DRS500) and it is also available on 386/486 PCs using either Chase Research or DigiBoard AT/EISA bus terminal controllers. However in general these older Wang terminals can only be connected to a UNIX CPU through an external protocol converter like a Kerridge Z-net or through a Chase Research IOLAN terminal server using Ethernet.

If the manufacturer does not directly support Wang flow control, function keys 17 and 19 will not work correctly as they send characters which conflict with XON/XOFF flow control. Pressing SF19 will stop the computer transmitting and SF17 will restart it. KCML will not see either key.

These terminals have a very straightforward TERMINFO description as the terminal responds directly to KCML command sequences and most keys can be sent directly. Local printing is supported but if the printer is off-line then the screen will also be off-lined.

Character set

These terminals use a proprietary 7 bit character set. The standard terminal has a font which displayed many Latin characters but there were variants for Germany, Switzerland etc. The US character set

To use this terminal in a non-English locale with KCML5 which requires Latin-1 you will need to add some mapping entries to TERMINFO e.g.

# 7 bit international characters from standard US terminal
# mapped back to Latin-1 characters
# These may be ambiguous with editing keys like ^A and ^V
map('Â')=\x00
map('Ê')=\x01   
map('Î')=\x02
map('Ô')=\x03
map('Û')=\x04
map('À')=\x05
map('È')=\x06
map('Ù')=\x07
map('É')=\x08
map('á')=\x0F
map('â')=\x10
map('ê')=\x11
map('î')=\x12
map('ô')=\x13
map('û')=\x14
map('ä')=\x15
map('ë')=\x16
map('ï')=\x17
map('ö')=\x18
map('ü')=\x19
map('à')=\x1A
map('è')=\x1B
map('ù')=\x1C
map('Ä')=\x1D
map('Ö')=\x1E
map('Ü')=\x1F
map('é')=\x7D
map('ç')=\x7E