SNT08/T modem/telephone/ISDN Settings and Configuration

Card Type	ISDN, Modem
Chip Set	Unidentified
I/O Options	Power, ISDN interface via RJ-45 connector, RJ-11 analog port, 25-pin serial port
ISDN Rate	64Kbps x 2
Maximum Modem Rate	33.6Kbps
Maximum Fax Rate ISDN Modulation Protocol	14.4Kbps V.110, V.120
Data Modulation Protocol	Bell 103J/212A, ITU-T V.21, V.22, V.22bis,V.23, V.32, V.32bis, V.34, V.FC
Fax Modulation Protocol	V.17, V.29, V.27ter
Error Correction/Compression	MNP10, MNP5, V.42, V.42bis
Fax Class	Class I
Data Bus	External

CONNECTIONS
Function	Label		Function		Label
Power		CN1		Line out (RJ-11)		CN4
25-pin serial port		CN2		Power switch		SW1
ISDN interface (RJ-45 connector)		CN3

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Transmission channel in high impedence mode	U1	Open
Transmit termination set to 100Ohm	U1	Closed
í Receive channel in high impedence mode	U2	Open
Receive termination set to 100Ohm	U2	Closed

PORT INTERFACE SELECTION
Setting	U13	U14	U15	U16	U17	U18	U19
í V.24/V.28 interface	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
V.35 interface	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
Note: Pins designated are in the closed position

POWER ON CONFIGURATION
Setting	DS1/1	DS1/2	DS1/3	DS1/4
í Unidentified	Off	Off	Off	Off
Factory configuration 0	Off	Off	On	Off
Factory configuration 1	On	Off	On	Off
Factory configuration 2	Off	On	On	Off
Factory configuration 3	On	On	On	Off
Asynchronous V25bis	Off	Off	Off	On
Synchronous V25bis	Off	Off	On	On

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Green	On	Power is on
PWR	Green	Off	Power is off
TST	Red	On	Unit is conducting a test
TST	Red	Blinking	Error detected during self test
TST	Red	Off	Unit not conducting a test
MDC	Red	On	DTE interface connected to modem/fax
MDC	Red	Off	DTE interface connected to the TA
B1	Red	On	B1 channel in use
B1	Red	Off	B1 channel inactive
B1	Red	Blinking	B1 channel busy
B2	Red	On	B2 channel in use
B2	Red	Off	B2 channel inactive
B2	Red	Blinking	B2 channel busy
DSR	Red	On	Terminal Adapter is ready
DSR	Red	Off	Terminal Adapter not ready
DTR	Red	On	Computer is ready
DTR	Red	Off	Computer is not ready
TD	Red	On	Modem is transmitting data
TD	Red	Off	Modem is not transmitting data
CTS	Red	On	CTS signal is high. TA ready to send data
CTS	Red	Off	CTS signal is low
RD	Red	On	Modem is receiving data
RD	Red	Off	Modem is not receiving data
DCD	Red	On	Data carrier present
DCD	Red	Off	Data carrier not present. Connection not established

SUPPORTED COMMAND SET (DIGITAL)

Basic AT Commands

AT, A/

E, Q, V, W

&C, &R, &Z

S Registers

S3, S4, S12, S25, S26

Note: See MHI Help File for full command documentation.

SUPPORTED COMMAND SET (ANALOG)

Basic AT Commands

AT, A/

A, E, H, L, M, O, Q, V, W, X, Y, Z

&C, &M, &Q, &R, &T, &V, &W, &X, &Y, &Z

Extended AT commands

\A, \B, \G, \K, \N

%C, %E, %L

S Registers

S0, S1, S2, S3, S4, S5, S6 ,S7, S8, S9, S10, S12, S18, S25, S26, S30, S32, S33, S95

Special commands

+MS, )M

V.25bis commands

CIC, CRN, CRS, DIC, PRN

Note: See MHI Help File for full command documentation.

DIGITAL OR ANALOG MODEM SELECTION
Type:	Configuration
Format:	AT [cmds] $Mn [cmds]
Description:	Selects digital or analog for preliminary setup
Note:	If the call is being made using the digital section, the remote user is ISDN. If the call is being made using the analog section, the remote user is PSTN
Command	Function
$M0	Computer serial interface is connected to the digital modem section
$M1	Computer serial interface is connected to the analog modem section

AUTO-MODE DETECTION
Type:	Configuration
Format:	AT [cmds] Nn [cmds]
Description:	Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.
Command	Asynchronous Mode	Synchronous Mode
N0	If the DTE interface is equal or more than 38.4Kbps and S37=255, the connection is active at 38.4Kbps. Otherwise, connection is established at speed selected by S37.	If the DTE interface is equal or more than 115.2Kbps and S37=255, the connection is active at 64Kbps in transparent mode. Otherwise, connection is established at speed selected by S37.
í N1	Line connection speed starts at 19.2Kbps and follows DTE interface.	Line connection speed starts at 48Kbps V.110 and follows DTE interface.

COMMUNICATIONS MODE
Type:	Configuration
Format:	AT [cmds] &Mn [cmds]
Description:	Selects communications mode options
Command	Mode
&M0	Buffered asynchronous mode
&M1	Asynchronous off-line command mode and synchronous connect mode.
&M2	Asynchronous off-line command mode. Modem autodials first number in directory, then synchronous connect mode.
&M4	Direct mode (V.110)

COMMUNICATIONS MODE
Type:	Configuration
Format:	AT [cmds] &Qn [cmds]
Description:	Selects communications mode options
Command	Mode
&Q0	Buffered asynchronous mode
&Q1	Asynchronous off-line command mode and synchronous connect mode
&Q2	Asynchronous off-line command mode, Modem autodials first number in directory, then synchronous connect mode.
&Q4	Direct mode (V.110)

CONFIGURATION PROFILES
Type:	Immediate
Format:	AT [cmds] &V [cmds]
Description:	Displays active and stored configuration profiles
Command	Function
&V0	Displays the active profile, the 0 and 1st user configuration and the first four stored numbers
&V1	Displays the 2nd and 3rd user configuration
&V2	Displays every stored phone number
&V3	Displays the supplementary services profile

DATA COMPRESSION
Type:	Immediate
Format:	AT [cmds] &Un
Description:	Selects data compression
Command	Function
í &U0	Data compression disabled
&U1	Error corrected data compression enabled (V.120)

DATA SET READY (DSR)
Type:	Configuration
Format:	AT [cmds] &Sn [cmds]
Description:	Selects DSR options
Command	Function
í &S0	DSR forced high
&S1	DSR high only while modem is handshaking or connected

DATA TERMINAL READY (DTR)
Type:	Configuration
Format:	AT [cmds] &Dn [cmds]
Description:	Selects modem response to DTR
Command	Function
í&D0	DTR override
&D1	DTR toggle causes online command mode
&D2	Normal DTR operations
&D3	Resets on receipt of DTR

DIAL
Type:	Immediate
Format:	AT [cmds] D<#> [cmds]
Description:	Dials telephone number according to any modifiers included in the string
Note:	Any combination of modifiers can be used to produce the desired dial functions in sequence.
Command	Function
DS=n	Dial stored telephone number n (0-19)
DT	Call is switched to digital interface
DP	Call is switched to analog interface

FACTORY DEFAULT PROFILE
Type:	Configuration
Format:	AT [cmds] &F [cmds]
Description:	Sets values in active profile to values found in the default profile
Command	Function
&F0	Load active profile the factory profile 0
&F1	Load active profile the factory profile 1
&F2	Load active profile the factory profile 2
&F3	Load active profile the factory profile 3

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] &Kn [cmds]
Description:	Enables flow control options
Command	Function
&K0	Flow control disabled
&K3	RTS/CTS flow control enabled
&K4	XON/XOFF flow control enabled. Modem does not transmit XON/XOFF characters received from computer to remote
&K8	Unidirectional XON/XOFF flow control enabled
&K12	XON/XOFF flow control enabled. Modem transmits XON/XOFF characters received from computer to remote
&K16	V.110 XON/XOFF flow control enabled. Flow control between local and remote modems only. Flow control between modem and computer is disabled.
&K20	V.110 XON/XOFF flow control enabled.

HOOK CONTROL
Type:	Immediate
Format:	AT [cmds] Hn [cmds]
Description:	Selects whether the device is on-hook or off-hook
Command	Function
H0	TA commanded to go on-hook (hang-up)

ON-LINE
Type:	Immediate
Format:	AT [cmds] On [cmds]
Description:	Controls on-line command (data transmission) state options.
Command	Function
O0	On-line command mode with no retraining enabled

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports model
I1	Reports ROM checksum
I2	Tests and reports ROM checksum
I3	Reports revision level
I4	Display central office

RESTORE PROFILE ON POWER-UP
Type:	Configuration
Format:	AT [cmds] &Yn [cmds]
Description:	Restores a selected profile into the active profile on power-up (hard reset)
Command	Function
&Y0	Restore profile 0 on power-up
&Y1	Restore profile 1 on power-up
&Y2	Restore profile 2 on power-up
&Y3	Restore profile 3 on power-up

SELECT CALL PROGRESS RESULT CODES
Type:	Configuration
Format:	AT [cmds] Xn [cmds]
Description:	Enables selection of tone detection and associated result code format options
Command	Function
X0	Result codes 0 - 4 enabled.
X1	Extended result codes enabled.

SOFT RESET
Type:	Immediate
Format:	AT [cmds] Zn [cmds]
Description:	Restores modem profiles previously saved in non-volatile RAM using the &W command.
Command	Function
Z0	Restore setting 0
Z1	Restore setting 1
Z2	Restore setting 2
Z3	Restore setting 3

STORE ACTIVE PROFILE
Type:	Configuration
Format:	AT [cmds] &Wn [cmds]
Description:	Writes the values for the active profile into the non-volatile RAM
Command	Function
&W0	Write the active profile to stored profile 0
&W1	Write the active profile to stored profile 1
&W2	Write the active profile to stored profile 2
&W3	Write the active profile to stored profile 3

TEST MODES
Type:	Immediate
Format:	AT [cmds] &Tn
Description:	Selects test options
Command	Function
&T0	End current test
&T1	Begin local analog loopback test
&T3	Begin B1 channel local digital loopback

B-CHANNEL PROTOCOL
Type:	Configuration
Format:	AT [cmds] %A2=n [cmds]
Description:	Determines rate adaptation protocol on B-channel
Command	Function
í %A2=1	V.110
%A2=2	V.120

B-CHANNEL SELECTION
Type:	Configuration
Format:	AT [cmds] %A3=n [cmds]
Description:	Selects data channel
Command	Function
í %A3=2	B1 channel selected. If busy select B2 channel
%A3=3	B1 channel selected. If busy initiate hang-up
%A3=4	B2 channel selected. If busy select B1 channel
%A3=5	B2 channel selected. If busy initiate hang-up

COMMAND SET
Type:	Configuration
Format:	AT [cmds] %Vn [cmds]
Description:	Defines the AT or V.25bis command set
Command	Function
%V0	AT command set
%V1	Asynchronous V.25bis command set
%V3	Synchronous V.25bis HDLC command set

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

FLASH EPROM CODE UPGRADE
Type:	Configuration
Format:	AT [cmds] %Fn [cmds]
Description:	Initiates Flash EPROM code upgrade

RESET
Type:	Configuration
Format:	AT [cmds] %Z1 [cmds]
Description:	Master reset and load the configuration specified by the &Y command

AUDIO/SPEECH ISDN CALL
Type:	Configuration
Format:	AT [cmds] *Bn [cmds]
Description:	Selects type of ISDN analog call
Command	Function
í *B0	Speech mode enabled
*B1	3.1KHz audio enabled

CALLER ID
Type:	Configuration
Format:	AT [cmds] *In [cmds]
Description:	Enables/disables originate call identification function
Command	Function
*I0	Caller ID disabled
*I1	Caller ID enabled

MULTISUBSCRIBER NUMBER
Type:	Configuration
Format:	AT [cmds] *Mn [cmds]
Description:	Permits the association of a maximum of 8 consecutive numbers to a BRI access of the national plan number
Command	Function
í *M0	MSN disabled
*M1	MSN enabled

PROGRAMMING PROMPT
Type:	Configuration
Format:	AT [cmds] $Pn [cmds]
Description:	Enables/disables programming prompt
Command	Function
í $P0	Interface prompt disabled
$P1	Interface prompt enabled

SUBADDRESS
Type:	Configuration
Format:	AT [cmds] *Sn [cmds]
Description:	Identifies address of called modem
Command	Function
í *S0	Subaddress function disabled
*S1	Subaddress function enabled

STORE CALLER ID NUMBER
Type:	Configuration
Format:	AT [cmds] !N1=n [cmds]
Description:	Stores telephone number n for the caller ID function. !N1=? displays the stored telephone number.

STORE MULTISUBSCRIBER NUMBER
Type:	Configuration
Format:	AT [cmds] !N2=n [cmds]
Description:	Stores own telephone number n for the MSN. !N2=? displays the stored multisubscriber number.

STORE SUBADDRESS NUMBER
Type:	Configuration
Format:	AT [cmds] !N3=n [cmds]
Description:	Stores subaddress field with a maximum of four numbers. !N3=? displays the stored subaddress field.

AUTO ANSWER RING COUNT
Type:	Register
Format	AT [cmds] S0=n [cmds]
Range:	1-5
Unit:	1 ring
Description:	Sets the number of rings allowed before the modem automatically goes off-hook
Note: If S0=0, automatic-answering is disabled. The A command must be used to go off-hook.

BACKSPACE CHARACTER
Type:	Register
Format	AT [cmds] S5=n [cmds]
Range:	0-127
Unit:	ASCII
Description:	Selects a character used for backspace <BS>

BIT-MAPPED REGISTER S31
Type:				Register
Format:		AT [cmds] S31=n [cmds]
Range:		0-255
Description:		Selects V.25bis command mode
Bit	Value		Function
1,0	í 0		V.25bis asynchronous mode
3, 2	í 0 1		V.25bis disabled V.25bis enabled

CALL WAITING TIME
Type:	Register
Format	AT [cmds] S13=n [cmds]
Range:	0-255
Unit:	1sec
Description:	Selects the duration that the buzzer/Test led flashes when a new call is detected. A value of 0 disables call waiting time.

DCE LINE SPEED
Type:	Register
Format	AT [cmds] S37=n [cmds]
Description:	Sets the maximum allowable data exchange rate attempted during handshake process.
Command	Function
S37=0, 255	Speed of last connection
S37=4	600bps
S37=5	1200bps
S37=6	2400bps
S37=15	4800bps
S37=16	7200bps
S37=17	9600bps
S37=18	12.0Kbps
S37=19	14.4Kbps
S37=27	19.2Kbps
S37=50	38.4Kbps
S37=51	48.0Kbps
S37=53	64.OKbps

ESCAPE CHARACTER
Type:	Register
Format	AT [cmds] S2=n [cmds]
Range:	0-127
Unit:	ASCII
Description:	Selects a character used for the escape sequence
Note: A value greater than 127 will disable the escape sequence.

FLOW CONTROL
Type:		Register
Format:	AT [cmds] S49=n [cmds]
Description:	Displays the value of the &K command, which specifies the DTE flow control setting
Command		Function
S49=0		No DTE flow control
S49=3		RTS/CTS flow control enabled
S49=4		Bi-directional XON/XOFF flow control enabled
S49=5		Transparent bi-directional XON/XOFF flow control enabled

NO CARRIER TIME-OUT
Type:	Register
Format	AT [cmds] S7=n [cmds]
Range:	1-255
Unit:	1 second
Description:	Maximum wait time the modem uses after dialing to detect a carrier signal from the remote modem for both originating and answering calls.

POINTER FOR CALL-BACK AND AUTOLOGON
Type:	Register
Format	AT [cmds] S34=n [cmds]
Range:	0-20, 255
Unit:	Unidentified
Description:	Establishes the memory location accessed to initiate autologon or callback procedures. 20 will cause the phonebook to scroll. 255 disables function

RING COUNT
Type:	Register
Format	AT [cmds] S1= n [cmds]
Range:	1-5
Unit:	1 ring
Description:	Counts the number of ring-cycles the modem receives
Note: S1 is reset to 0 if no ring is detected within an eight-second window.

COMMUNICATION PROTOCOLS
Type:	Configuration
Format:	AT [cmds] Bn [cmds]
Description:	Selects the communication protocol for data calls
Note: The B command allows the simultaneous selection of more than one suffix, enabling multiple protocols.
Command	Protocol
B0	ITU-T V.22 at 300 or 1200bps

DATA SET READY (DSR)
Type:	Configuration
Format:	AT [cmds] &Sn [cmds]
Description:	Selects DSR options
Command	Function
í &S0	DSR forced high
&S1	DSR high only while modem is handshaking or connected

DATA TERMINAL READY (DTR)
Type:	Configuration
Format:	AT [cmds] &Dn [cmds]
Description:	Selects modem response to DTR
Command	Function
&D0	DTR override
&D1	DTR toggle causes online command mode
í &D2	Normal DTR operations
&D3	Resets on receipt of DTR

DIAL
Type:	Immediate
Format:	AT [cmds] D<#> [cmds]
Description:	Dials telephone number according to any modifiers included in the string
Note:	Any combination of modifiers can be used to produce the desired dial functions in sequence.
Command	Function
DL	Re-dial last number
DP	Dial using analog modem section
DS=n	Dial stored telephone number n (0-3)
DT	Dial using digital modem section
DW	Dialing resumed following dial tone detection
D,	Dialing paused for amount of time specified in S8 register
D@	Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by five seconds of silence.
D!	Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.
D;	Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

FACTORY DEFAULT PROFILE
Type:	Configuration
Format:	AT [cmds] &F [cmds]
Description:	Sets values in active profile to values found in the default profile
Command	Function
&F0	Factory default profile 0
&F1	Factory default profile 1

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] &Kn [cmds]
Description:	Enables flow control options
Command	Function
&K0	Flow control disabled
í &K3	RTS/CTS flow control enabled
&K4	XON/XOFF flow control enabled
&K5	Transparent XON/XOFF flow control enabled
&K6	RTS/CTS and XON/XOFF flow control enabled

GUARD TONE
Type:	Configuration
Format:	AT [cmds] &Gn [cmds]
Description:	Commands the modem to transmit a guard tone in V.22/V.22bis
Command	Function
&G0	Guard tone disabled
&G2	Guard tone enabled

LINE MODULATION
Type:	Configuration
Format:	AT [cmds] Fn [cmds]
Description:	Command supported only for compatibility. No function is performed

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports maximum line speed
I1	Reports product type
I2	Reports checksum firmware
I3	Reports product name
I4	Reports firmware release
I5	Reports active Country Code

ABORT KEY CONTROL
Type:	Configuration
Format:	AT [cmds] %Kn [cmds]
Description:	Enable/disable abort key during dialing
Command	Function
%K0	Abort key during dialing enabled
%K1	abort key during dialing disabled

DSR WINK
Type:	Immediate
Format:	AT [cmds] %S [cmds]
Description:	Returns a value which indicates line signal quality
Command	Function
%S0	Data set ready in accordance with &S
%S1	When DTR is forced high, and the modem is goes off-hook, DTR is off for 1sec.

LINE SIGNAL QUALITY
Type:	Immediate
Format:	AT [cmds] %Q [cmds]
Range:	000-127
Unit:	Unidentified
Description:	Returns a value which indicates line signal quality. Values 000-007 indicate good line quality. Values 008-127 indicate poor line quality, disturbed signal

MAKE BUSY
Type:	Configuration
Format:	AT [cmds] %Bn [cmds]
Description:	Make busy (off-hook) if DTR lost
Command	Function
í %B0	Make busy disabled
%B1	Make busy enabled if S25=0. When DTR is low, the modem goes off-hook

MNP10 - LINK NEGOTIATION
Type:	Configuration
Format:	AT [cmds] *Hn [cmds]
Description:	Sets the speed at which MNP10 link negotiation will occur
Command	Function
*H0	Link will be negotiated at highest possible speed
*H1	Link will be negotiated at 1200bps

MNP - EXTENDED SERVICES
Type:	Configuration
Format:	AT [cmds] -Kn [cmds]
Description:	Selects MNP extended services
Command	Function
-K0	MNP extended services disabled
-K1	MNP extended services enabled if modem was previously in V.42bis mode

LOCAL CONFIGURATION
Type:	Immediate
Format:	CNLn
Description:	Any AT command may be entered as a parameter of this command

REQUEST LIST OF STORED NUMBERS
Type:	Immediate
Format:	RLN
Description:	Requests the list of phone numbers stored in memory

TRANSMISSION LEVEL - FAX
Type:	Register
Format:	AT [cmds] S92=n [cmds]
Range:	3-15
Unit:	-1 dBm
Description:	Sets the signal level for transmission while in fax mode

TRANSMISSION LEVEL - LEASED-LINE
Type	Register or Configuration
Format	AT [cmds] S91=n [cmds]
Range	3-15
Unit	-1 dBm
Description	Sets the signal level for transmission over leased-lines