AX/1200 modem/telephone/ISDN Settings and Configuration

Card Type	Modem (synchronous/asynchronous)
Chipset	Microcom, Inc.
Maximum Onboard Memory	8K battery-backup DRAM
Maximum Data Rate	1200bps
Data Bus	Serial
Data Modulation	Bell 103A/212A ITU-T V.22
Error Correction/Compression	MNP4

CONNECTIONS
Function	Label		Function		Label
Line out		CN1		Volume		R1
Line in		CN2		Talk/data switch		SW3
DC power		CN3		Synchronous/asynchronous switch		SW4
RS-232/422		CN4		Reset switch		SW5

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Busy out disabled	JP1	Pins 3 & 4 closed
Busy out enabled	JP1	Pins 1 & 2 closed
í Receiver sensitivity set to -10 to -43 dBm	JP2	Pins 3 & 4 closed
Receiver sensitivity set to 0 to -33 dBm	JP2	Pins 1 & 2 closed
í Pin 12 of RS-232 port indicates 1200bps connection	JP3/A	Closed
Pin 12 of RS-232 port does not indicate 1200bps connection	JP3/A	Open
í Synchronous transmit clock on RS-232 pin 15 enabled	JP3/B	Closed
Synchronous transmit clock on RS-232 pin 15 disabled	JP3/B	Open

USER CONFIGURABLE SETTINGS (CON’T)
Setting	Label	Position
í Pin 15 of RS-232 port does not indicate 1200bps connection	JP3/C	Open
Pin 15 of RS-232 port indicates 1200bps connection	JP3/C	Closed
í RTS signal in on RS-232 pin 15 disabled	JP3/D	Open
RTS signal in on RS-232 pin 15 enabled	JP3/D	Closed
í Factory configured - do not alter	JP4	N/A
í DTR normal	SW1/1	On
DTR forced high	SW1/1	Off
í Microcom SX command set enabled (asynchronous mode only)	SW1/2	On
AT command set enabled (asynchronous mode only)	SW1/2	Off
í Result codes disabled (asynchronous mode only)	SW1/3	On
Result codes enabled (asynchronous mode only)	SW1/3	Off
í Command echo disabled (asynchronous mode only)	SW1/4	Off
Command echo enabled (asynchronous mode only)	SW1/4	On
í Auto-answer enabled (asynchronous mode only)	SW1/5	On
Auto-answer disabled (asynchronous mode only)	SW1/5	Off
í CD normal (asynchronous mode only)	SW1/6	On
CD forced high (asynchronous mode only)	SW1/6	Off
í Verbose result codes enabled (asynchronous mode only)	SW1/7	On
Numeric result codes enabled (asynchronous mode only)	SW1/7	Off
í Command sets disabled (asynchronous mode only)	SW1/8	On
Command sets enabled (asynchronous mode only)	SW1/8	Off
í MNP result codes disabled (asynchronous mode only)	SW2/5	On
MNP result codes enabled (asynchronous mode only)	SW2/5	Off
í Factory defaults not restored on reset (asynchronous AT command set only)	SW2/6	On
Factory defaults restored on reset (asynchronous AT command set only)	SW2/6	Off
í Switched line type (synchronous mode only)	SW2/6	On
Leased line type (synchronous mode only)	SW2/6	Off
í Configuration not set to switch settings on reset (asynchronous mode only)	SW2/7	On
Configuration set to switch settings on reset (asynchronous mode only)	SW2/7	Off
í Auto-answer disabled (synchronous mode only)	SW2/7	On
Auto-answer enabled (synchronous mode only)	SW2/7	Off
í Factory configured - do not alter	SW2/8	Off

AUTO-DIAL NUMBER (SYNCHRONOUS MODE ONLY)
Setting	SW1/4	SW1/5	SW1/6	SW1/7
First number	Off	On	On	On
Second number	On	Off	On	On
Third number	On	On	Off	On
Fourth number	On	On	On	Off
Disabled	On	On	On	On

FLOW CONTROL (ASYNCHRONOUS MODE ONLY)
Modem to DTE	Modem to Modem	SW2/1	SW2/2
Disabled	Disabled	On	On
XON/XOFF	XON/XOFF	On	Off
RTS/CTS	XON/XOFF	Off	On
Disabled	Disabled	Off	Off

CONNECT MODE (ASYNCHRONOUS MODE ONLY)
Setting	SW2/3	SW2/4
Normal mode	On	On
Direct mode	Off	Off
Reliable mode	On	Off
Auto-reliable mode	Off	On

CD, DSR, AND CTS SIGNALS (SYNCHRONOUS MODE ONLY)
CD Signal	DSR Signal	CTS Signal	SW2/4	SW2/5
Forced high	Forced high	Forced high	On	On
Normal	Follows OH	Normal	On	Off
High except at disconnect	High except at disconnect	High except at disconnect	Off	On
Normal	Forced high	Forced high	Off	Off

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Unidentified	On	Power is on
PWR	Unidentified	Off	Power is off
TST	Unidentified	On	System error has occurred or modem is retraining
TST	Unidentified	Blinking	Serial port is waiting to be configured
TST	Unidentified	One blink	Data error has occurred
TST	Unidentified	Off	Normal operation
OH	Unidentified	On	Modem is off-hook
OH	Unidentified	Off	Modem is on-hook
HS	Red	On	Modem is operating at 1200bps
HS	Red	Off	Modem is operating at 300bps
DTR	Unidentified	On	DTR signal is high
DTR	Unidentified	Off	DTR signal is low
TX	Unidentified	Blinking	Modem is transmitting data
TX	Unidentified	Off	Modem is not transmitting data
RX	Unidentified	Blinking	Modem is receiving data
RX	Unidentified	Off	Modem is not receiving data

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, ‘comma’, A/

A, B, E, H, I, M, O, P, Q, T, V, X, Z

&D, &F, &G, &L, &M, &P, &R, &T, &W, &Z

Extended AT Commands

\A, \B, \C, \E, \G, \J, \L, \N, \O, \Q, \T, \U, \V, \X, \Y, \Z

%A, %E

S-Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12, S14, S16, S18, S21, S22, S23, S25, S26, S27

Note: See MHI documentation for complete information.