Neoway N10 - 3.6 LIGHT

N10_Hardware_User_Guide
Copyright © Neoway Technology Co., Ltd.
26
Figure 3-19 Reference of SIM card socket
SIM card is sensitive to GSM TDD noise and RF interference. So, the PCB design should meet the
following requirements:
 The antenna should be installed far away from the SIM card and SIM card traces, especially to the
built-in antenna.
 The SIM traces on the PCB should be as short as possible and shielded with GND copper.
 The ESD diodes or small capacitors should be closed to SIM card on the PCB.
3.6 LIGHT
Table 3-6 LED indicator
Pin
Signal
I/O
Function
Remarks
33
LIGHT
DO
Indicates running status
2.8 V output, max. 4 mA
The LIGHT pin can output a 4 mA of current and 2.8 V of voltage, therefore the LED can be directly
connected to this pin with a resistor in series. For better luminance, drive the LED with a transistor.