Cinterion
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MV31-W Hardware Interface Description
3.2 Characteristics
75
t
MV31-W_HID_v01.009a
2022-04-27
Public / Preliminary
Page 27 of 76
3.2
Characteristics
3.2.1
Power Supply and Ground
The 5G M.2 Data Card MV31-W uses the five 3V3 pins and 11 GND pins listed in
.
All pins have to be used in parallel.
3.2.2
Control Signals
3.2.2.1
W_DISABLE1#, W_DISABLE2# Signals
W_DISABLE1# controls the WWAN part of the data card. When this signal is driven low, the
WWAN part is disabled.
W_DISABLE2# controls the GNSS part of the data card. When this signal is driven low, the
GNSS part is disabled.
It is recommended to control W_DISABLE1# and W_DISABLE2# lines with an open collector
transistor.
3.2.2.2
RESET#
Asynchronous RESET# pin (active low) is not supported by MV31-W.
3.2.2.3
FULL_CARD_POWER_OFF#
The MV31-W can be controlled to power on/off by the FULL_CARD_POWER_OFF# pin.
Note:
Once FULL_CARD_POWER_OFF# is pulled low, MV31-W detaches from the network,
shuts down its internal interfaces, and then power off automatically. After power off, it is recom-
mended to pause for >30s before powering MV31-W on again by pulling the pin high.
3.2.2.4
WAKE_ON_WWAN#
The WAKE_ON_WWAN# signal is for power saving:
1. MV31-W always listening at very low power in idle mode
2. MV31-W will wake up mother board via WAKE_ON_WWAN# signal, when this feature is
enabled by AT+WOWWAN_ENABLE=1 and the receiving SMS contains the password
<pw>, which is set by AT+WOWWAN_PASSWORD=<pw>. For details refer to
.
3. The platform will power on when triggered by the MV31-W.
Table 4:
FULL_CARD_POWER_OFF# States
Signal State
Data Card State
Low
Powers off
High
Powers on
