SIERRA VOICE 28.8 (EXTERNAL) modem/telephone/ISDN Settings and Configuration

Card Type	Fax, Modem (synchronous/asynchronous), Voice
Chip Set	Sierra
I/O Options	Voice
Maximum Data Rate	28.8Kbps
Maximum Fax Rate	14.4Kbps
Data Bus	External
Fax Class	Class I & II
Data Modulation Protocol	Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34
Fax Modulation Protocol	ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression	MNP5, V.42, V.42bis

CONNECTIONS
Function	Label		Function		Label
Line in		CN1		DC power		CN4
Line out		CN2		Power switch		SW1
RS-232/422		CN3

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
MR	Red	On	Power is on
MR	Red	Off	Power is off
TR	Red	On	DTR signal is high
TR	Red	Off	DTR signal is low
SD	Red	On	Modem is transmitting data
SD	Red	Off	Modem is not transmitting data
RD	Red	On	Modem is receiving data
RD	Red	Off	Modem is not receiving data
OH	Red	On	Modem is off-hook
OH	Red	Off	Modem is on-hook
CD	Red	On	Carrier signal detected
CD	Red	Off	Carrier signal not detected
AA	Red	On	Auto-answer enabled
AA	Red	Off	Auto-answer disabled
EC	Red	On	Error correction in progress
EC	Red	Off	Error correction not in progress

AUTO-RELIABLE FALLBACK CHARACTER
Type:	Configuration
Format:	AT [cmds] %An [cmds]
Default:	Unidentified
Range:	0-127
Unit:	ASCII
Description:	Sets the character used as the auto-reliable fallback character. %A0 will disable this function.

AUTO-RELIABLE TIME BUFFER CONFIGURATION
Type:	Configuration
Format:	AT [cmds] \Cn [cmds]
Description:	Controls the handling of incoming data during auto-reliable time period
Command	Function
\CO	Data is discarded
\C1	Data is buffered
í \C2	Data is discarded, sets to normal mode when auto-reliable character detected.

AUTO-RETRAIN
Type:	Configuration
Format:	AT [cmds] %Qn [cmds]
Description:	Selects auto-retrain mode
Command	Function
%Q0	Auto-retrain disabled
%Q1	Auto-retrain three times
%Q2	Auto-retrain until line quality is good

COMPRESSION
Type:	Configuration
Format:	AT [cmds] %Cn [cmds]
Description:	Selects data compression
Command	Function
%C0	Data compression disabled
%C1	MNP5 and V.42bis enabled

CONNECT MODE
Type:	Configuration
Format:	AT [cmds] \Nn [cmds]
Description:	Sets connect mode
Command	Function
\N0	Normal mode enabled
\N1	Direct mode enabled
\N2	MNP mode enabled
í \N3	V.42/MNP/Normal mode enabled
\N4	V.42 mode enabled
\N5	V.42/MNP mode enabled

DSR SIGNAL - ANALOG LOOPBACK TEST
Type:	Configuration
Format:	AT [cmds] %Dn [cmds]
Description:	Selects the function of the DSR signal during analog loopback tests
Command	Function
%D0	DSR forced high
í %D1	DSR forced low

DTE SPEED
Type:	Configuration
Format:	AT [cmds] \Tn [cmds]
Description:	Selects the current DTE speed
Command	Function
\T0	Select DTE autobaud
\T1	Select last AT speed
\T2	Select 300bps speed
\T3	Select 1200bps speed
\T4	Select 2400bps speed
\T5	Select 4800bps speed
\T6	Select 7200bps speed
\T7	Select 9600bps speed
\T8	Select 12Kbps speed
\T9	Select 14.4Kbps speed
\T10	Select 16.8Kbps speed
\T11	Select 19.2Kbps speed
\T12	Select 21.6Kbps speed
\T13	Select 24Kbps speed
\T14	Select 26.4Kbps speed
\T15	Select 28.8Kbps speed
\T16	Select 38.4Kbps speed
\T17	Select 57.6Kbps speed
\T18	Select 76.8Kbps speed
\T19	Select 115.2Kbps speed
\T20	Select 128Kbps speed

EXTENDED RESULT CODES
Type:	Configuration
Format:	AT [cmds] \Vn [cmds]
Description:	Selects extended result codes
Command	Function
\V0	Extended result codes disabled
\V1	Extended result codes with DTE speed enabled
\V2	Extended result codes with DTE speed enabled
í \V3	Extended result codes disabled and S/DCE speed enabled

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] \Gn [cmds]
Description:	Selects modem port flow control
Command	Function
í \G0	Flow control disabled
\G1	Flow control enabled

FLOW CONTROL TYPE
Type:	Configuration
Format:	AT [cmds] \Qn [cmds]
Description:	Sets type of flow control used by modem
Command	Function
\Q0	Flow control disabled
\Q1	Bidirectional XON/XOFF flow control enabled
í \Q2	CTS flow control to DTE enabled
\Q3	RTS/CTS flow control enabled
\Q4	Unidirectional XON/XOFF flow control enabled

PROTOCOL/SPEED
Type:	Configuration
Format:	AT [cmds] &Hn [cmds]
Description:	Selects the current protocol
Command	Function
&H0	Selects V.34 and below
&H1	Selects V.34 only
&H2	Selects V.32bis and below
&H3	Selects V.32bis only
&H4	Selects V.32 and below
&H5	Selects V.32 only
&H6	Selects V.22bis only
&H7	Selects V.22 only
&H8	Select Bell 212A only
&H9	Selects Bell 103 only
&H10	Selects V.21 only