AT Commands

EPROM Check I

PC software packages may issue the I command to verify the modem will support all commands needed by the software package. The modem returns ASCII characters representing the model and revision level. To request the checksum to be calculated on the EPROM, enter the I1 command. The modem returns four ASCII characters representing the cyclic redundancy check (CRC) in hexadecimal form. Enter the I3 command to request the product version.

Command

Operation

 

 

I

Request product code

 

 

I1

Request EPROM checksum value

 

 

I3

Request product version

 

 

I4

Returns Motorola V.3600

 

 

I5

Last disconnect reason

 

 

Speaker Volume L

The L commands offer three volume levels.

Command

Operation

 

 

L, L1, L2

Speaker volume low

 

 

L3

Speaker volume high

 

 

Speaker Control M

The M commands enable or disable the speaker for monitoring purposes.

Command

Operation

 

 

M

Disables the speaker

 

 

M1

Disables the speaker while receiving a carrier signal

 

 

M2

Speaker always on

 

 

M3

Disables the speaker while dialing and after a

 

carrier is detected

 

 

5-24

Modem 3600

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Black Box 3600 MODEM manual Eprom Check, Speaker Volume L, Speaker Control M