COMMODORE USER PORT
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A B C D E F H J K L M N LOOKING AT THE BACK OF COMPUTER OR BACK
(WIRING SIDE) OF CONNECTOR
PIN--------DB-25-----DB-9-----USER PORT (TTL)
NAME-----PIN #-----PIN #----PIN ID
TXD-------2-----------3 <=== M
RXD-------3-----------2 ===> B&C
SG---------7/1--------5 ==== N
RTS--------4----------7 <=== D
CTS--------5----------8 ===> K
DCD--------8----------3 ===> H
DSR--------6----------6 ===> L
MARK------11 (KAM) TO EXTERNAL SCOPE
SPACE-----18 (KAM) TO EXTERNAL SCOPE
AFTER THIS IS ALL DONE USE ANY TERMINAL PROGRAM TO CONNECT TO YOUR TNC
10 CLOSE2 20 OPEN2,2,3,CHR$(6) 30 GET#2,A$ 40 REM 50 GET B$ 55 IF B$=CHR$(133) THEN GOTO 100 60
IF B$<>""THEN PRINT#2,B$; 70 GET#2,C$ 80 PRINT C$; 90 GOTO 50 100 CLOSE2 110 END