HUAWEI MC509 Series CDMA LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 02 (2013-05-06)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
30
Table 3-6
List of the LED_STATUS pin and LED_MODE pin
No.
Operating Status
LED_STATUS
LED_MODE
1
The 3G network is
searched and registered.
The indicator blinks
once each time.
GND
- OFF
2
3G PS Service.
Connected in a packet
data connection
(Dormant).
OPEN
-
Always ON
GND
- OFF
3
3G PS Service.
Connected in a packet
data connection but
actively transferring data.
The indicator blinks
fast
GND
- OFF
4
The software is being
downloaded or upgraded.
GND
- OFF
The indicator blinks fast
5
Module is not registered
but searching for a
operator (CREG:0,2 or
CREG:0,0).
the indictor blinks
twice each time
GND
- OFF
6
Low power mode
GND
- OFF
GND
- OFF
Blinking Once Each Time
Figure 3-8
Status when the indictor blinks once each time
100 ms
Light off
1 cycle: 3 s
Light on