VT-Tablet-5101
15
/
20
3.5.6
3.5mm
earphone
Jack
with
external
MIC
in
Structure mark:
It is a standard 4-pole 3.5mm earphone Jack with external MIC in , every pole
signal define is below
3.5.7
Micro
SD
card
slot
Structure mark:
It is a standard micro SD card slot. You can insert a micro sd card to increase
external storage.
3.5.8
Expand
docking
port
Pin Description
Pin Description
1 Ground
13
CTSB
2 CAN1_HIGH
14
Debug_TX
3 CAN1_LOW
15
Debug_RX
4 Ground
16
Ground
5 TXDA
17
USER_UI1
6 RXDA
18
USER_UI2
7 RTSA
19
USER_UI3
8 CTSA
20
USER_UI4
9 Ground
21
USER_UI5
10 TXDB
22 Ground
11 RXDB
23 GEN_3V3
12 RTSB
24 GEN_3V3
3.5.9
Standard
SIM
card
slot
Structure mark:
It is a standardSIM card slot. It is used to the 3G or 4G LTE module.1