Husky MP2500 Manual page 249

Chapter 25: INT 14H, Serial Port Handler
Byte 7 Protocol
0 None
1 XON/XOFF
2
Not used (obsolete option)
Byte 8 Nulls
0..14H 0..20 Nulls after CR
Byte 9 LF
0 Off
1 On
Byte 10 Serig
0..7FH Ignore this character
80H Off
Byte 11 Echo
0 Off
1 On
Byte 12 Transmit timeout
0 Off
1..3CH 1..60 seconds
Byte 13 Receive time-out
0 Off
1..3CH 1..60 seconds
227