2400BPS EXTERNAL MODEM (VER.1)

CARDINAL TECHNOLOGIES,INC.

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

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
HS	Green	On	Modem is operating at faster than 2400bps
HS	Orange	On	Modem is operating at 2400bps
HS	Green	Off	Modem is operating at slower than 2400bps
AA	Green	On	Auto-answer enabled
AA	Green	Off	Auto-answer disabled
AA	Green	Blinking	Phone is ringing
CD	Green	On	Carrier signal detected
CD	Green	Off	Carrier signal not detected
OH	Green	On	Modem is off-hook
OH	Green	Off	Modem is on-hook
RD	Green	On	Modem is receiving data
RD	Green	Off	Modem is not receiving data
SD	Green	On	Modem is transmitting data
SD	Green	Off	Modem is not transmitting data
TR	Green	On	DTR signal is high
TR	Green	Off	DTR signal is low
MR	Green	On	Power is on
MR	Green	Off	Power is off
MR	Green	Blinking	Modem in test mode

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, A/

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

&C, &D, &F, &G, &L, &P, &S, &T, &W, &Z

S Registers

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

Note: See MHI Help file for full command documentation.

Proprietary AT Command Set

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] I n [cmds]
Description:	Displays information requested
Command	Function
I0	Reports modem code
I1	Reports checksum
I2	Verifies and reports checksum