MB2400EX modem/telephone/ISDN Settings and Configuration

Card Type	Modem (synchronous/asynchronous)
Chip Set	Unidentified
Maximum Data Rate	2400bps
Data Bus	External
Data Modulation Protocol	Bell 103/212A ITU-T V.21, V.22, V.22bis

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
HS	Red	On	Modem is operating at 2400bps or faster
HS	Red	Off	Modem is operating at slower than 2400bps
AA	Red	On	Auto-answer enabled
AA	Red	Off	Auto-answer disabled
AA	Red	Blinking	Phone is ringing
CD	Red	On	Carrier signal detected
CD	Red	Off	Carrier signal not detected
OH	Red	On	Modem is off-hook
OH	Red	Off	Modem is on-hook
RD	Red	On	Modem is receiving data
RD	Red	Off	Modem is not receiving data
SD	Red	On	Modem is transmitting data
SD	Red	Off	Modem is not transmitting data
TR	Red	On	DTR signal is high
TR	Red	Off	DTR signal is low
MR	Red	On	Power is on
MR	Red	Off	Power is off
MR	Red	Blinking	Modem in test mode

PULSE DIALING RATIO
Type:	Configuration
Format:	AT [cmds] &Pn [cmds]
Description:	Selects pulse dial make/break ratio
Command	Function
í &P0	39/61ms at 10pps (North America)
&P1	34/66ms at 10pps (British)

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports modem code
I1	Reports ROM checksum
I2	Tests and reports ROM checksum
I3	Reports version information

STORE TELEPHONE NUMBER
Type:	Configuration
Format:	AT [cmds] &Zn=(phone # & modifiers)
Description:	Writes selected telephone numbers into the non-volatile memory at location n
Note:	The characters described in the D command are valid for use in the &Z command; telephone numbers and modifiers can include up to 30 characters.

TEST MODES
Type:		Register
Format:		AT [cmds] S16=n [cmds]
Default:		0
Range:		0-125
Unit:		Bit-mapped
Description:		Controls loopback tests: analog, digital, remote digital, and self tests
Bit	Value	Function
0	í 0 1	Local analog loopback not in progress Local analog loopback in progress
1	í 0	Not used
2	í 0 1	Local digital loopback not in progress Local digital loopback in progress
3	í 0 1	Modem not in remote digital loopback Remote digital loopback in progress
4	í 0 1	Remote digital loopback not requested Remote digital loopback requested
5	í 0 1	Remote digital loopback w/ self-test not in progress Remote digital loopback w/ self-test in progress
6	í 0 1	Local analog loopback w/ self-test not in progress Local analog loopback w/ self-test in progress