Quectel EC2 Series User Manual

LTE Module Series
EM05 Hardware Design
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Table 14: RF Status Indications of LED# Signal
3.11.3. WOWWAN# Signal
The WOWWAN# signal is an open drain signal, and requires a pull-up resistor on the host. When a URC
returns, a 1s low level pulse will be outputted. The state of WOWWAN# signal is shown as below.
Table 15: State of the WOWWAN# Signal
Wake up the host
1s
High
Low
(external pull-up)
Figure 24: WOWWAN# Behavior
LED#
Description
Low Level (Light on)
RF function is turned on
High-impedance (Light off)
RF function is turned off if any of the following circumstances
occurs:
 The card is not powered
 W_DISABLE1# signal is at low level. (Disable the RF)
 AT+CFUN=0
 AT+CFUN=4
No.
WOWWAN#
Operating Status
1
Output 1s low level (pulse signal)
Call/SMS/Data
2
Always at high level
Idle/Sleep
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Quectel EC2 Series Specifications

General

Brand	Quectel
Model	EC2 Series
Category	Control Unit
Language	English