
TC65Smart
User Manual
Rev. 2-1.0 23
3.2.1. By transmission of the command from TC65 through the bus-line I2C (see
Table 3.1).
This way makes it possible to switch to the particular mount under the number
(SIM1 or SIM2). After the switch, the registration in the network is started
automatically. The value of the current mount is recorded in the non-volatile
memory and selected automatically during power-on. If the “tray” has been
extracted from the required mount, the switching procedure is disabled. (no actions
performed);
3.2.2. By pulsing through the output TC65 GPIO6.
After transmitting of the combination log. “1” – log. “0” to the output GPIO6
(duration of retention of log. 1 - >50us), the Controller starts the SIM card changing
procedure. If the current card has been SIM1, it will switch to SIM2 and vice versa.
In other points, the switching procedure is completely analogous to Clause 5.2.1.
3.2.3. By mechanical extracting of the “tray” of the active SIM mount.
In this case, if the “tray” of the other mount is inserted, the mount changing
operation will be started automatically, similarly with Clause 3.2.1
Important note:
SIM holders transmit into the system the information not about the installed SIM
cards, but about the “trays” clicked up thereon. If an empty tray is clicked in the
mount, the controller will anyway receive the information on the SIM card availability
(see Fig. 11).
The indicators SIM1 and SIM2 flash depending on the selected mount. During the terminal
operation, they flash repeating the signal on the SYNC output of the module TC65 (see the
module documentation) inversely (SYNC=”0” – indicator flashes and vice versa). In the SIM
card change mode both indicators flash simultaneously. In the standby mode the SIM cards
(no “tray” clicked) – indicators flash less frequently and in turn.
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