Activating the Cellular Modem | ATO CMM 900-3W specs

Parity: None

Stop Bits: 1

Flow Control based on the CMM 900-3W switch settings Click OK.

Step 8: Select Call>Disconnect

Step 9: Select Call>Connect

Step 10: Select File>Properties>Settings>ASCII setup

Step 11: Check the following:

In the ASCII Sending field, check Echo typed characters locally.

In the ASCII receiving field, check Append line feeds to incoming line ends and Wrap lines that exceed terminal width.

Step 12: Click OK twice.

Step 13: Select Call>Disconnect

Step 14: Select Call>Connect

Step 15: Select File>Save

Step 16: Hit <CR> on the keyboard. The Cellular Modem will return OK.

This is the indication that the entire hardware setup and configuration is OK.

4.3 Activating the Cellular Modem:

To activate, perform the following steps:

Step 1: Enter AT+TEST<CR>. The unit responds OK.

Step 2: Enter AT+MIN=<Allocated_MIN ><CR> The unit responds OK.

Step 3: Enter AT+SID=<Allocated_SID ><CR> The unit responds OK

Step 4: Enter AT+SYS=00 <CR> (will select system B only), or =01 <CR> (will select system A only), or

=02 <CR> (SID will determine preferred system, however roaming charges may apply).

The Cellular Modem does NOT have to be configured every-time. The above information is stored in the Non-volatile memory built in the CMM 900-3W.

Step 5: Enter AT+MODE=02<CR> The unit is now set for data mode.

Step 6: Enter AT+SER <CR> The unit responds with SERVICE AVAILABLE.

To use the Cellular Modem to communicate with a modem, perform the following steps:

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