S52 - V.34 and 56K Settings for Data Signaling
Range : n.a.
Default : 2
Description: S52 (bit-mapped) controls certain modes of V.34 and 56K data
transmission. The V.34 Standard allows different line speeds in transmit
and receive direction. (asymmetric data rates).
Value Bit Description
01 Bit 0 - Disables asymmetric data rates for V.34.
02 Bit 1 - Disables auxiliary channel for V.34.
04 Bit 2 - Disables V.34 data rates above 28.8 kbps
Bit 3 - Reserved
16 Bit 4 - Disables use of proprietary interface for 56Kbps operation
32 Bit 5 - Disables use of the V.90 interface for 56Kbps operation
Bits 6-7 - Reserved
> ----------
> From: Valery Gorodnichev[SMTP:val@vinnet.com]
> Sent: Wednesday, May 26, 1999 1:12 PM
> To: portmaster-modems@livingston.com
> Subject: (PMOD) ThinkPad 770X with build in modem.
>
> Please help!
> I need to disable V.34, v.90 and X2 on this modem.
> Any body knows AT commands or S-registers?
>
> Thanks,
> Val
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