Ublox SARA-R5 Series User Manual

EVK-R5 - User guide
UBX-19042592 - R06 Appendix Page 20 of 23
C1-Public
D Current consumption measurement
The current consumption of SARA-R5 series modules can be measured on the EVK-R5 by removing
the jumper socket from the Cellular VCC supply jumper J109 available on the ADP-R5 board, as shown
in Figure 5.
Cellular VCC supply jumper socket (J109)
to be removed for SARA-R5 module
current consumption measurements
Figure 5: Jumper socket to be removed for SARA-R5 series modules current consumption measurement
A suitable external digital multi-meter (as for example the Keysight/Agilent 34465A, 34410A or
34411A) can be used for current consumption measurements. In this case, the 3.8 V supply circuit on
the EVB will supply the SARA-R5 module mounted on the adapter board, with the digital multi-meter
placed in series as illustrated in Figure 6.
SARA-R5 adapter board
SARA-R5
Cellular
module
42-pin DIL B2B connectors
EVB-WL3
Step - down
Main power switch
(SW400)
12 V
(J400)
3.8 V
VCC jumper
(J109)
VCC
Digital multimeter
DCI
+ –
VCC jumper
(J404)
Figure 6: Block diagram of current consumption setup for SARA-R5 series modules
Alternatively, a suitable external DC power supply with dynamic current measurement capabilities (as
for example, the Agilent 66319B/D) can be used for current consumption measurements, acting also
as supply source for the SARA-R5 module mounted on the adapter board.
E Declaration of conformities
The equipment is intended for indoor usage. It is the user’s duty to verify if further restrictions apply,
such as in airplanes, hospitals or hazardous locations (petrol stations, refineries…). Any changes or
modification made to this equipment will void its compliance to the safety requirements.
Maintenance, inspections and/or repairs of the EVK-R5 shall be performed by u-blox AG.

Ublox SARA-R5 Series Specifications

General

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