Rs485/Usb/Audio Connector; Led Indicators (Power/Wwan/Wifi/Storage) - Nexcom VTC 1911 User Manual

Chapter 2: External Connectors Pinout Description

RS485/USB/Audio Connector

Connector Number: 3
15 11
5 1
15 11
5 1
Pin Definition
1 USB-
3 MCU_485_TX-
5 MIC_R_IN
7 GND
9 SPK_OUT_L
11 DATA_L
13 DATA_GND
15 Audio_GND
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Pin Definition
2 USB VCC
4 SPK_OUT_R
6 USB+
8 MCU_485_TX+
10 MIC_L_IN
12 DATA_H
14 GND

LED Indicators (Power/WWAN/WIFI/STORAGE)

Connector Number: 4
POWER
WWAN
WIFI
STORAGE
LED LED Behavior
POWER Power On: Green
WWAN Blinking: Active
WIFI Blinking: Active
STORAGE Light On: Storage Active
7
VTC 1911 User Manual