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VT-SBC-3399 | User Manual 21
Specification: JST: B3B-PH-K-S(LF)(SN), 1 x 3, 2mm
Pinout description:
Pin
Name
Type
Description
1
FAN_12V
P
12V power output, current limit 0.5A
2
FAN_PWM
O
PWM output, voltage domain 5V
3
GND
P
Ground
2.4.17
J4 Debug port (17)
The debug port is a 3-section 3.5mm headphone jack.
Specification: BSUN: PJ3020F-D660AT0T4
Pinout description:
Pin
Name
Type
Description
1
GND
P
Ground
2
RS232_TX
O
RS232 data output, default baud rate
115200bps
3
RS232_RX
I
RS232 data input, default baud rate
115200bps
Please use a DB9 to 3.5mm adapter cable to connect the Board and the host PC before
debugging. You are recommended to use the self-made adapter cable (YC1083R035) with
description as follows:
The pins of the debug port correspond to that of the adapter cable as follows:
J4 (debug port)
J1 (audio end of the adapter cable)
GND
P3
RS232_RX
P1
RS232_TX
P2
1
Wiring:
Black
Red
Ground
