Card Type	Modem (asynchronous)
Chip Set	Unidentified
Maximum Data Rate	300bps
Data Bus	Internal/Toshiba bus
Data Modulation Protocol	Bell 103/212A ITU-T V.21

CONNECTIONS
Function	Label		Function		Label
RS-232-C		CN1		Ribbon cable to connecting board		CN4
Line out		CN2		Connection to computer		CN5
Ribbon cable to connecting board		CN3		Grounding screw		R1

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í DTR normal	JP2	Pins 1 & 2 closed
DTR forced high	JP2	Pins 2 & 3 closed
í CD signal normal	JP3	Pins 1 & 2 closed
CD signal forced high	JP3	Pins 2 & 3 closed
í Bell 103/212A select	JP4	Pins 1 & 2 closed
IUT-T V.21 select	JP4	Pins 2 & 3 closed

COMMUNICATION
Setting	SW1
Off	Position 0
RS-232-C	Position 1
Modem	Position 2

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, ‘Comma’, A/

A, C, D, E, F, H, M, O, P, Q, S, T, V, Z

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12

Note: Please see MHI Help file for full command documentation.

BIT-MAPPED REGISTER S13
Format:			AT [cmds] S13=n [cmds]
Default:			Unidentified
Range:			0-220
Description:			Controls parity, buffer overflow flag, and data bits.
Bit	Value			Function
1, 0	0			Not used
2		0 1			Parity disabled Parity enabled
3		0 1			Odd parity Even parity
4		0 1			7 data bits 8 data bits
5		0			Not used
6		0 1			Buffer overflow flag disabled Buffer overflow flag enabled, ERROR result code sent
7		0 1			8th data bit set to space when bit 4 value is 1 8th data bit set to mark when bit 4 value is 1

BIT-MAPPED REGISTER S14
Format:			AT [cmds] S14=n [cmds]
Default:			Unidentified
Range:			0-238
Description:			Controls echo, result codes, pulse/tone dialing, and speaker control
Bit	Value			Function
0	0			Not used
1		0 1			Local echo disabled Local echo enabled
2		0 1			Result codes enabled Result codes disabled
3		0 1			Numeric result codes Verbose result codes
4		0			Not used
5		0 1			Pulse dialing Tone dialing
6		0 1			Not used Speaker on until carrier detected
7		0 1			Not used Speaker always on

BIT-MAPPED REGISTER S15
Format:			AT [cmds] S15=n [cmds]
Default:			Unidentified
Range:			0-110
Description:			Controls DCE speed, answer/originate mode, duplex and carrier signal
Bit	Value			Function
1, 0	00 01 10			Not used 110bps 300bps
2		0 1			Answer mode enabled Originate mode enabled
3		0 1			Half-duplex enabled Full-duplex enabled
5, 4		00 01 10			Not used 110bps 300bps
6		0 1			Carrier disabled Carrier enabled

BIT-MAPPED REGISTER S17
Format:			AT [cmds] S17=n [cmds]
Default:			Unidentified
Range:			0-125
Description:			Controls hook status, auto-answer, speaker, low speed, ring indicator, and carrier
Bit	Value			Function
0	0 1			On hook Off hook
1		0			Not used
2		0 1			Auto-answer enabled Auto-answer disabled
3		0 1			Speaker disabled Speaker enabled
4		0 1			Low speed disabled Low speed enabled
5		0 1			Ring indicator true Ring indicator false
6		0 1			Carrier present Carrier not present

COMMAND MODE
Type:	Immediate
Format:	AT [cmds] ; (semicolon) [cmds]
Description:	Return the modem to command mode after dialing

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports product code
I1	Reports checksum
I2	Tests and reports ROM checksum

REVERSE MODE
Type:	Immediate
Format:	AT [cmds] R
Description:	Places the modem in answer mode for remote modems that are originate only

SELECT CALL PROGRESS RESULT CODES
Type:	Configuration
Format:	AT [cmds] Xn [cmds]
Description:	Enables selection of result code format options
Command	Function
X0	Result codes 0 - 7 enabled, result code 5 not used.
Note: Hayes extended result code set not used