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.
31
Blinking Fast
Figure 3-9
Status when the indictor blinks fast
Blinking Twice Each Time
Figure 3-10
Status when the indictor blinks twice each time
External Circuits
Figure 3-11 shows the recommended circuits of the LED_MODE and LED_STATUS
pins. According to LED feature, you can adjust the LED brightness by adjusting the
impedance of resistor R.
100 ms
Light off
Light on
1 cycle: 200 ms
100 ms 100 ms 100 ms
Light on
Light off
1 cycle: 3 s