Technical Specs

Product Technical Specification
Rev 3 Oct.20 30 41113694
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 31 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.
Control
R
WAKE_ON_WAN#
1
2
3
Q
5k-100k
Host
VCC
Module
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. Sierra Wireless 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.