Ublox SARA-R5 Series System Integration Manual

SARA-R5 series - System integration manual
UBX-19041356 - R04 System description Page 36 of 118
C1-Public
OFF
ON
DCE UART is enabled for 2000 GSM frames
(~9.2 s)
time
Wake up time: ~15 ms
time
TXD
input
Wake up character
Not recognized by DCE
UART
OFF
ON
Figure 19: Wake-up via data reception without further communication
Figure 20 shows the case where in addition to the wake-up character further (valid) characters are
sent. The wake-up character wakes up the module UART. The other characters must be sent after
the “wake-up time” of ~15 ms. If this condition is satisfied, the module (DCE) recognizes characters.
The module will disable the UART after 2000 GSM frames from the latest data reception.
DCE UART is enabled for 2000 GSM frames
(~9.2s) after the last data received
time
Wake up time: ~15 ms
time
Wake up character
Not recognized by DCE
Valid characters
Recognized by DCE
OFF
ON
TXD input
UART
OFF
ON
Figure 20: Wake-up via data reception with further communication
☞ The “wake-up via data reception” feature cannot be disabled.

Ublox SARA-R5 Series Specifications

General

Brand	Ublox
Model	SARA-R5 Series
Category	Control Unit
Language	English