Mnp register summary, B-12, S27 bit mapped configuration register – Epson 500 Series User Manual
Page 98: S46 protocol selection, S48 v.42 negotiation action, S82 break handling; affected by \k commands, B-12 fax/modem
S27 Bit mapped configuration register
Bit 012345
Unused
Bit 6
0
CCITT V.22 (1200 bps); V.21 (300 BPS B0)
1
Bell 212A (1200 bps)
Bit 7
Unused
MNP Register Summary
S36 Negotiate failure treatment
0
Hang up
1
Attempt direct connection
2
Reserved
3
Attempt normal connection
4
Attempt V.42bis then MNP 5 connection, if fail, hang up
5 or 7
Attempt V.42bis then V.42, then MNP 5 connection, if fail, negotiate MNP 2-4
with constant terminal speed
S46 Protocol selection
136
Execute LAPM protocol with no BTLZ compression
138
Execute LAPM protocol with BTLZ compression
S48 V.42 negotiation action
0
Disable the negotiation process; remote modem must be configured the
same
3
Half duplex negotiation; your modem remains silent during detection
7
Enable negotiation
128
Disable negotiation; bypass the detection and negotiation phases; proceed
at once with the fallback action specified in S36
S82 Break handling; affected by \K commands
3
Send break immediately and save data in buffers
7
Send break immediately and ignore data in buffers
128
Break is sent in sequence with the transmitted data as \K5
B-12 Fax/Modem