Paradyne 3910 operation manual Dcp Lcd

AT Command Set and S-Registers

Table 5-4

(11 of 13)

391x Series S-Registers

S-Register		Description	DCP LCD
			Command
			Sequence
S89	V.42 Automatic Request for Retransmission (ARQ) Window Size
	Increase. Register allows the ARQ window size to be set to a value
	from six frames to fifteen frames.
	For best performance, this register should remain at its default setting
	of six frames (ATS89 = 0). The only reason to change it is for satellite
	delays.
	Register has the following values:
	0	= six frames
	1	= seven frames
	2	= eight frames
	3	= nine frames
	4	= ten frames
	5	= eleven frames
	6	= twelve frames
	7	= thirteen frames
	8	= fourteen frames
	9	= fifteen frames
	The factory setting is 0 (six frames).
	This command only applies when the modem connects using V.42bis
	data compression or V.42 error control. If the modem is configured for
	Direct mode, MNP mode, Buffer mode, or Synchronous operation, this
	command is invalid.
	This command does not have a front panel equivalent.
S90	DTE Rate = VF. Register allows the DTE's data rate to be equal to the		Configure\Edit\
	VF (telephone line) data rate. If Enabled, the data rate between the		DTE Interface
	DTE and modem is the same as the modem's VF data rate. As a
	result, when the modem is in Data mode, the speed of the data
	passed between the modem and DTE occurs at the VF data rate.
	Register has the following values:
	0	= Disable
	1	= Enable
	The factory setting is Disable.
S91	Cellular Enhancement. Register allows the modem to use		Configure\Edit\
	non-standard techniques to enhance V.42 operation for cellular		V42/MNP/Buffer
	applications. It is still compatible, however, with modems which do not
	have the cellular enhancement implemented or enabled.
	Register has the following values:
	0	= Disable
	1	= Enable
	The factory setting is Disable.

3910-A2-GN32-30 November 1996 5-25