Product Info

LTE Module Series
AG35-QuecOpen
Hardware Design
AG35-QuecOpen_Hardware_Design 78 / 137
Table 35: Pin Definition of STATUS
Pin Name Pin No. I/O Description Comment
STATUS 171 OD Indicate the module’s operation status Require external pull-up
The following figure shows different circuit designs of STATUS, and customers can choose either one
according to specific application demands.
Figure 34: Reference Circuits of STATUS
1. In sleep state, STATUS will still output a low voltage to drive the LED, causing an extra current
consumption on VBAT. So it is recommended to replace VBAT with an external controllable power
supply, and use it to switch off the power source during sleep state so as to reduce power
consumption.
2. It is not recommended to use level translator circuit for STATUS.
3.21. USB_BOOT Interface
AG35-Quecopen provides a USB_BOOT pin which is multiplexed with COEX_UART_RX. Developers
can pull up the USB_BOOT to VDD_EXT before powering on the module, thus the module will enter into
emergency download mode when powered on. In this mode, the module supports firmware upgrade over
USB interface.
NOTES