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The goal of the settings listed above is to eliminate all bias current from VBATT and to supply the
entire board (except theWISMO228) using only VBAT.
Socket-Up Board
An adaptor board, the WISMO218 Socket‐Up Board (WM0801706‐020‐20), is used to connect the
WISMO228 to work on the WISMO218 Development Kit.
On this socket‐up board, the soldering points of J203, J204, JP101, JP102, JP103, JP104, JP105, JP106
and JP107 must be opened.
SIM Cards
Consumption measurement may be performed with either 3‐Volt or 1.8‐Volt SIM cards. However,
all specified consumption values are for a 3‐Volt SIM card.
Caution: The SIM card's voltage is supplied by the WISMO228's power supply. Consumption measurement
results may vary depending on the SIM card used.
Software Configuration
This section discusses the software configuration for the equipment(s) used and the WISMO228
settings.
WISMO228 Configuration
The WISMO228 software configuration is simply performed by selecting the operating mode to use
in performing the measurement.
A description of the operating modes and the procedures used to change the operating mode are
given in the appendix of WISMO218 AT Commands Manual.
The available operating modes in the WISMO228 are as follows:
•
OFF Mode
•
Alarm Mode
•
Idle Mode
•
Connected Mode
•
Transfer Mode class 8 (4Rx/1Tx) (in GPRS mode)
•
Transfer Mode class 10 (3Rx/2Tx) (in GPRS mode)
WA_DEV_W228_PTS_002
Rev 001
Product Technical Specification &
Customer Design Guidelines
Page 92 of 108
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