TA Triumph-Adler LP 4140 - Manual (Page 158)

Computer Interface
5-8 ADVANCED OPERATION GUIDE
H4: Parity
The factory default setting is None (0 on the status printout).
H5: Protocol logic
The factory default setting is 0.
H6: Buffer nearly-full threshold
This is a percentage from 0 to 99. The factory default setting is 90.
H7: Buffer nearly-empty threshold
This is a percentage from 0 to 99. The factory setting is 70.
The factory default settings of the buffer nearly-full and nearly-empty
thresholds (H6 and H7) are subject to change without notification.
The gap between the nearly-full and nearly-empty thresholds allows the
computer to send a fairly large amount of data in a continuous stream.
H8: Received-data buffer size
This is the size of the input buffer, specified in units of 10 Kbytes. The
factory-set value is 6, meaning 60 Kbytes.
Parameter value Meaning
0 None
1 Odd
2 Even
3 Ignore
Parameter value Meaning
0 Combination of 1 and 3 below
1 DTR/DSR, positive logic
2 DTR, negative logic
3 XON/XOFF
4 ETX/ACK
5 XON/XOFF recognized only as protocol