Telit Wireless Solutions LE910C series Hw Design Guide

LE910Cx mPCIe Hardware Design Guide
1VV0301510 Rev. 13 Page 39 of 73 2021-07-07
Not Subject to NDA
Figure 11: Internal LED_WWAN_N Driver and Recommended Connection to a LED
Note:
THIS SIGNAL IS NOT ACTIVE BY DEFAULT. REFER TO AT#SLED
DESCRIPTION IN THE AT COMMAND USER GUIDE.
6.5.4. PERST_N
PERST_N is used to reset the LE910Cx-mPCIe. Whenever this signal is pulled low, the
LE910Cx-mPCIe is reset. When the device is reset it stops any operation. After the release
of the reset, the LE910Cx is unconditionally restarted, without performing any detach
operation from the network where it is registered. The reset signal must not be used to
normally restart the device, but only as an emergency exit in the rare case the device gets
stuck waiting for a network response.
PERST_N is internally controlled on start-up to achieve a proper power-on reset
sequence, so there's no need to control this pin on start-up. It may only be used to reset
a device already turned on that is not responding to any commands.
Note:
Do not use this signal to power cycle the LE910Cx-mPCIe. Use
the AT#SHDN command instead.

Telit Wireless Solutions LE910C series Specifications

General

Brand	Telit Wireless Solutions
Model	LE910C series
Category	Wireless modules
Language	English