Quectel LTE Standard Module Series User Manual

LTE Module Series
EG21-G Hardware Design
EG21-G_Hardware_Design 50 / 100
Flicker slowly (1800ms High/200ms Low)
Idle
Flicker quickly (125ms High/125ms Low)
Data transfer is ongoing
Always High
Voice calling
A reference circuit is shown in the following figure.
4.7K
47K
VBAT
2.2K
Module
Network
Indicator
Figure 26: Reference Circuit of the Network Indicator
3.16. STATUS
The STATUS pin is an open drain output for indicating the module’s operation status. It can be connected
to a GPIO of DTE with a pull-up resistor, or as LED indication circuit as below. When the module is turned
on normally, the STATUS will present the low state. Otherwise, the STATUS will present high-impedance
state.
Table 20: Pin Definition of STATUS
Pin Name
Pin No.
I/O
Description
Comment
STATUS
61
OD
Indicate the module operation status
An external pull-up resistor
is required.
If unused, keep it open.
The following figure shows different circuit designs of STATUS, and customers can choose either one
according to customers’ application demands.

Quectel LTE Standard Module Series Specifications

General

Brand	Quectel
Model	LTE Standard Module Series
Category	Wireless modules
Language	English