Technical Specs

Table Of Contents
Rev 5 May.21
31
41113694
Electrical
Specifications
VCC
Host
Figure 2-7: Recommended WAKE_ON_WAN# Connection
W_DISABLE1# (Wireless Disable) and
W_DISABLE2# (GNSS Disable)
Note: Host support for wireless/ GNSS disable signals is optional.
The host device uses W_DISABLE1# to enable/ disable the WWAN or radio modem, and
W_DISABLE2# to enable/disable GNSS functionality.
Letting these signals float high allows the module to operate normally. These pins have
100 k pull-up resistors. See Figure 2-8 on page 32 for a recommended implementation.
When integrating with your host device, keep the following in mind:
The signal is an input to the module and should be driven LOW to turn the radio off, or
HIGH or floating to keep it on.
If the host never needs to assert this power state control to the module, leave this
signal unconnected from the host interface.
Table 2-6: W_DISABLE1# / W_DISABLE2# Usage
Name Pin Description / notes
W_DISABLE1#
8
Enable/disable the WWAN or radio modem
a
. When disabled, the modem cannot
transmit or receive.
Leave as not connected or drive HIGH to keep the modem always on.
Drive LOW to turn the modem off.
W_DISABLE2#
26
Enable/disable GNSS functionality
a
Leave as not connected or drive HIGH to enable GNSS functionality.
Drive LOW to disable GNSS functionality.
For details on enabling / disabling GNSS functionality, see the
AT!CUSTOM=”GPSENABLE” command
.
a. Lantronix, Inc. recommends that the host implement an open collector driver where a Low signal turns off the modem or dis-
ables GNSS functionality, and a high signal turns on the modem or enables GNSS functionality.
5k-100k
WAKE_ON_WAN#
3
1
Q
Control
R
2
Module