User manual

Confidential, the whole present document is the sole property of Maestro Wireless Solution Ltd.

Time required for the detected state to trigger the AT command exestuation. Unit is in millisecond.

Valid value from 1 to 50 (0.1 sec to 5 sec). Refer to the above timing diagram in section 12.1

<cmd>

AT command to be executed when the I/O port is triggered successfully. The length of the command is limited to 128

characters. See section 11.3 for more details.

12.3. Notes and cautions to be taken when using I/O triggered AT command

1. The I/O port is limited to drain current 10mA max. Never give too high input voltage to the I/O port or the modem will be

damaged.

2. Use only cable/metal contact designed for Molex MicroFit™ connector. Using incompatible connector will damage the

modem. Contact your dealer or Maestro Wireless Solutions if you need wire for the I/O port connection.

3. The modem will NOT check the command you entered to the <cmd> field. It will be executed even it is not a valid AT

command (or even not an AT command). Check by yourself when you enter the command.

4. When triggered, the command will be executed in ‘quiet’ mode, i.e. without any response like “OK” or “ERROR” will be

sent to external application.

5. Do not enter “interactive” AT command (e.g. AT+CMGS=…), otherwise when the command is executed, the modem

will in a state of waiting further input, not to do other jobs.

6. With this feature enabled user cannot control the I/O port by other AT commands anymore.

7. Due to product limitation the modem cannot detect switching action with period less than 100ms. If the switch’s

open/close action is done in less than 100ms this feature will not be able to detect accurately.