Rtc Description; Rtc Application; Rtc Consumption; Uart - Fibocom G510 Hardware User Manual

3.6.1 RTC Description

The following table shows the definitions of the pins for RTC:
Pin No.
6

3.6.2 RTC Application

Here are the methods to set the time and date of the module:
 Automatically retrieved from the GSM network. In case module is operated in a GSM network that
supports automatic time zone updating, it will update the RTC with the local time and date upon
connection to the network. The RTC will continue to keep the time from that point.
Using the AT+CCLK command. Setting the time and date manually by this AT commands overrides

the automatic network update. Once the time and date are manually updated, the RTC timer will keep
the time and date synchronized regardless of the module operating state.
 VBACKUP (pin6) input voltage range: 2.0V~3.3V. If the VBACKUP voltage is lower than 2.0V, the
current time and date will be lost.

3.6.3 RTC Consumption

The following table shows the consumption of the module when the power is supplied by RTC only.
VBACKUP Voltage
VBACKUP=2.0V
VBACKUP=3.3V

3.7 UART

The module has 3 UART ports.
UART1 is a completely independent 8 wire serial bus interface. This is the main UART.
UART2 is a 2 wire serial bus interface, it only supports a few AT commands.
HOST UART is a debug UART, which is used for downloading, calibrating, trace and so on, it doesn't
support any AT command.
G510 Hardware User Manual
Signal Name
VBACKUP
Description
Real time clock power
Consumption Value
190uA
260uA
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