Led Pin - Huawei MU509-65 HSDPA Hardware Manual

HUAWEI MU509-65 HSDPA LGA Module
Hardware Guide

3.4.4 LED Pin

The MU509-65 module provides a network status LED pin: LED_STATUS and
LED_MODE pin. The pulse signal output through this pin controls the status LED on
the user interface board to display the network status. The LEDs are controlled by a
current sink. The high voltage is the voltage of VBAT (with the typical value of 3.8 V).
Different blinking modes of the status LED indicate different network status. Table 3-8
describes the status of the LED_STATUS pin and LED_MODE pin.
Table 3-8 The status of the LED_STATUS pin and LED_MODE pin
No.
1
2
3
4
Blinking Once Each Time
Figure 3-10 Status when the indictor blinks once each time
Issue 01 (2016-04-08)
Operating Status
The 3G network is
successfully registered.
The dial-up connection is
set up for accessing 3G
data services.
The software is being
downloaded or upgraded.
The network is being
searched for or no
network is detected.
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Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
LED_STATUS
The indicator blinks
once each time.
Light on
Light off
Light off
LED_MODE
Light off
Light off
The indicator blinks fast.
The indicator blinks
twice each time.
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