Card Type	Modem (synchronous/asynchronous)
Chip Set	Motorola
Maximum Data Rate	9600bps
Data Bus	Serial
Data Modulation Protocol	Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32

CONNECTIONS
Function	Label	Function	Label
AC power in	CN1	Line in	CN4
Serial port	CN2	Power switch	SW1
Line out	CN3	Talk/Data button	SW2

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Signal ground connected to chassis ground	JP1	Pins 1 & 2 closed
Signal ground not connected to chassis ground	JP1	Pins 2 & 3 closed
í Quality monitor signal high indicates poor signal quality	JP2	Pins 1 & 2 closed
Quality monitor signal low indicates poor signal quality	JP2	Pins 2 & 3 closed
í Quality Monitor signal connected to CN2 pin 11	JP3	Pins 1 & 2 closed
Quality Monitor signal not connected	JP3	Pins 2 & 3 closed
í Telephone line polarity normal	JP4	Pins 1 & 2, 3 & 4 closed
Telephone line polarity reversed	JP4	Pins 1 & 3, 2 & 4 closed
í Factory configured - do not alter	JP5	Pins 2 & 3 closed

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
TD	Red	On	Modem is transmitting data
TD	Red	Off	Modem is not transmitting data
RD	Red	On	Modem is receiving data
RD	Red	Off	Modem is not receiving data
CD	Red	On	Carrier signal detected
CD	Red	Off	Carrier signal not detected
CS	Red	On	CTS signal is high
CS	Red	Off	CTS signal is low
QM	Red	On	Bit Error Rate exceeds 104
QM	Red	Off	Bit Error Rate is less than 104
TALK	Red	On	Modem is in TALK mode
TALK	Red	Off	Modem is in DATA mode
Note: The function of the HS LED is unidentified.

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, ‘comma’, A/

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

&D, &F, &G, &P, &V, &W, &X

Extended AT Commands

%E

S-Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S22, S23, S25, S26

V.25bis Commands

CRN, PRN, CRS

Note: See MHI documentation for complete information.

ANSWER/ORIGINATE MODE
Type:	Configuration
Format:	AT [cmds] *ORn [cmds]
Description:	Selects whether the modem is in answer or originate mode.
Command	Function
í *OR0	Modem is in originate mode.
*OR1	Modem is in answer mode.

BIT-MAPPED REGISTER S32
Format		AT [cmds] S32=n [cmds]
Default:		6
Range:		0 - 15
Description:		Controls line type, disconnect on loss of current, and leased line backup mode.
Bit	Value	Function
0	í 0 1	2-wire leased line. 4-wire leased line.
2, 1	00 10 í 11	Do not disconnect on loss of current. Disconnect after 8ms if current is lost. Disconnect after 90ms if current is lost.
3	í 0 1	Modem will reestablish a leased line connection only when *LB or *LD is received. Modem will reestablish a leased line connection automatically.

BIT-MAPPED REGISTER S61
Format		AT [cmds] S61? [cmds]
Default:		Read-only
Range:		0 - 62
Description:		Reports current character length and parity.
Bit	Value	Meaning
2 - 0	001 010 011 100 110	Serial port speed is 300bps. Serial port speed is 1200bps. Serial port speed is 2400bps. Serial port speed is 4800bps. Serial port speed is 9600bps.
3	0 1	7 bit character length set. 8 bit character length set.
5, 4	01 10 11	No parity. Odd parity. Even parity.

BIT-MAPPED REGISTER S72
Format		AT [cmds] S72=n [cmds]
Default:		Unidentified
Range:		0 - 152
Description:		Controls CTS signal and auto-callback function.
Bit	Value	Function
2 - 0	000	Not used.
3	0 1	CTS normal. CTS follows CD.
4	0 1	CTS normal. CTS follows RTS.
6, 5	00	Not used.
7	í 0 1	Auto-callback disabled. Auto-callback enabled. The modem, upon detecting an incoming call, will dial the default number and connect with it instead of the incoming call.

BIT-MAPPED REGISTER S84
Format		AT [cmds] S84=n [cmds]
Default:		0
Range:		0 - 31
Description:		Controls disconnect during handshaking, remote DCD signal, V.22 fallback, answer back, dial backup trigger.
Bit	Value	Function
0	í 0 1	Disconnect if key is pressed during handshaking. Do not disconnect if key is pressed during handshaking.
1	í 0 1	Remote DCD signal forced low in remote digital loopback and remote configuration. Remote DCD signal normal in remote digital loopback and remote configuration.
2	í 0 1	Normal fallback to V.22. Fast fallback to V.22.
3	í 0 1	Normal answer back. Fast answer back.
4	í 0 1	DTR signal must go from low to high four times for dial backup to occur. DTR signal must go from low to high once for dial backup to occur.

LEASED LINE BACKUP - REESTABLISH OPTIONS
Type:	Configuration
Format:	AT [cmds] *DBn [cmds]
Description:	Selects what will initiate the reestablishment of a leased line connection.
Command	Function
í *DB0	Modem will reestablish a connection only when modem receives *LB or *LD.
*DB1	Modem will reestablish a connection automatically.

LEASED LINE BACKUP - RESTORE
Type:	Configuration
Format:	AT [cmds] *LB [cmds]
Description:	Commands the modem to attempt to reestablish the leased line connection, or to wait for a leased line call if in answer-only mode.

LINE TYPE
Type:	Configuration
Format:	AT [cmds] &Ln [cmds]
Description:	Selects line type.
Command	Function
í &L0	Modem is connected to switched line.
&L1	Modem is connected to 2-wire leased line.
&L2	Modem is connected to 4-wire leased line.

REMOTE CONFIGURATION EXIT
Type:	Immediate
Format:	AT [cmds] &T [cmds]
Description:	Exits remote configuration mode.

TEST MODE - BIDIRECTIONAL ANALOG LOOPBACK TEST
Type:	Configuration
Format:	AT [cmds] *ANn [cmds]
Description:	Controls the bidirectional local analog loopback test mode.
Command	Function
í *AN0	End loopback test.
*AN1	Begin loopback test.

TEST MODE - BIDIRECTIONAL DIGITAL LOOPBACK TEST
Type:	Configuration
Format:	AT [cmds] *DGn [cmds]
Description:	Controls the bidirectional local digital loopback test mode.
Command	Function
í *DG0	End loopback test.
*DG1	Begin loopback test.

TEST MODE - LOOPBACK TEST ON PIN 18
Type:	Configuration
Format:	AT [cmds] *LAn [cmds]
Description:	Controls whether the modem will perform a local analog loopback test when pin 18 goes high.
Command	Function
*LA0	Pin 18 has no function.
*LA1	Pin 18 going high causes the modem to perform local analog loopback test.

TEST MODE - LOOPBACK TEST ON PIN 21
Type:	Configuration
Format:	AT [cmds] *RDn [cmds]
Description:	Controls whether the modem will perform a remote digital loopback test when pin 21 goes high.
Command	Function
í *RD0	Pin 21 has no function.
*RD1	Pin 21 going high causes the modem to perform remote digital loopback test.

TEST MODES
Type:	Immediate
Format:	AT [cmds] &Tn
Description:	Selects test options.
Command	Function
&T0	End current test.
&T1	Begin local analog loopback test.
&T2	Begin remote analog loopback test.
&T3	Begin local digital loopback.
&T4	Grant remote digital loopback request.
&T5	Deny remote digital loopback request.
&T6	Request remote digital loopback.
&T7	Request remote digital loopback and self-test.
&T8	Begin local analog loopback and self-test.
&T9	Begin remote analog loopback and self-test.

TEST PATTERN
Type:	Immediate
Format:	AT [cmds] %T [cmds]
Description:	Transmits a test pattern to the remote modem.

TRANSMISSION LEVEL - LEASED LINE
Type:	Configuration
Format:	AT [cmds] *TLn [cmds]
Default:	0
Range:	0-30
Unit:	-1 dBm
Description:	Sets the signal level for transmission over leased lines.

TRANSMISSION LEVEL - LEASED-LINE
Type:	Register
Format:	AT [cmds] S52=n [cmds]
Default:	0
Range:	0-15
Unit:	-1 dBm
Description:	Sets the signal level for transmission over leased-lines.

V.32 TIMEOUT
Type:	Register
Format:	AT [cmds] S53=n [cmds]
Description:	Selects the length of the 801 V.32 timeout.
Command		Function
í S53=0		Modem will use long 801 V.32 timeout.
S53=1		Modem will use short 801 V.32 timeout.

REQUEST LIST OF STORED NUMBERS
Type:	Immediate
Format:	RLN
Description:	Requests the list of stored numbers from the modem.

FACTORY DEFAULT PROFILE
Type:	Immediate
Format:	PRPn
Description:	Returns the command settings to the values found in factory default profile n. This will return the modem to AT command mode.