> 19.6 | AT^SSYNC Configure SYNC Pin

> The AT^SSYNC command serves to configure the SYNC pin of the application interface. The applicability of the different types of <mode> is product dependent:

> • | If you have a TC65 module you may select either mode, depending on whether your application is designed to use the SYNC mode (indicates the current consumption in a transmit burst) or the LED mode (drives a status LED connected to the pin). See [2] for further details on both modes.

> • | In the case of the TC65 Terminal the AT^SSYNC command is intended only to control the status LED placed on the front panel. Therefore, the SYNC mode (<mode>=0) is not applicable. Further details on the LED can be found in [3].

> Syntax

> Test Command AT^SSYNC=?
> Response(s)
> ^SSYNC:list of supported <mode>s
> OK

> Read Command AT^SSYNC?
> Response(s)
> ^SSYNC:<mode>
> OK

> Write Command AT^SSYNC=<mode>
> Response(s)
> OK

> Reference(s) |  | PIN |  | ASC0 | ASC1 | USB | MUX1 | MUX2 | MUX3 |  |  | Charge | Q | Last
> SIEMENS |  | - |  | + | + | + | + | + | + |  |  | - | - | -

> Parameter Description

> <mode>(num)

> Operation mode of the SYNC pin. Setting is stored non-volatile.
> 0(D)
> SYNC mode:
> Enables the SYNC pin to indicate growing power consumption during a transmit burst. You can make use of the signal generated by the SYNC pin, if power consumption is your concern. To do so, ensure that your application is capable of processing the signal. Your platform design must be such that the incoming signal causes other components to draw less current. In short, this allows your application to accommodate current drain and thus, supply sufficient current to the GSM engine if required.
> Note: <mode>=0 is the factory default of the TC65 module. In the case of the TC65 Terminal this mode is not applicable and should not be selected.
> 1
> LED mode:
> Enables the SYNC pin to drive a status LED installed in your application according to the specifications provided in [2].
> The coding of the LED is described in Section 19.6.1, ME status indicated by status LED patterns.
> 2
> LED mode:
> Like <mode>=1, but, additionally, enables different LED signalization in SLEEP mode depending on the status of PIN authentication and network registration. Please see AT+CFUN for details on SLEEP mode.
> Note: <mode>=2 is the factory default of the TC65 Terminal.