Datasheet

INSYS Modem 336/56k 4.1 (UL) S Registry
S39* Flow control
Selection of the data flow control between the PC and the modem
S39=0 No data flow control (AT&K0)
S39=3 RTS/ CTS data flow control (AT&K3)
S39=4 XON/ XOFF data flow control (AT&K4)
S39=5 Transparent XON data flow control (AT&K5)
S39=6 RTS/CTS and XON/XOFF data flow control
S40* General settings
Bit Meaning
Bit 0 Reserved
Bit 1 Reserved
Bit 2 Reserved
Bit 3-5 Break handling Break handling
0: see AT\K0
1: see AT\K1
2: see AT\K2
3: see AT\K3
4: see AT\K4
5: see AT\K5
Bit 6-7 MNP block size MNP block size
0: 64 characters (AT\A0)
1: 128 characters (AT\A1)
2: 192 characters (AT\A2)
3: 256 characters (AT\A3)
S41* General settings
Bit Meaning
Bit 0.1 Select compression type Compression Selection
0: No compression (AT%C0)
1: MNP5 (AT%C1)
2: V42bis (AT%C2)
3: MNP5 or V.42bis (AT%C3)
Bit 2 Auto retrain Auto retrain control
0: No auto retrain (AT%E0)
1: Auto retrain (AT%E1)
Bit 3 Reserved
Bit 4 Reserved
Bit 5 Reserved
Bit 6 Fall back/fall forward FB/FF control
0: No FB/FF
1: FB/FF (AT%E2)
Bit 7 Reserved
July 06 83