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VT-SBC-3588 | User Manual 21
30
NC
31
GND
P
Ground
2.4.13
J28 M.2 B-Key (13)
The VT-SBC-3588 offers an M.2 B-Key socket that supports a size of 2242. It is compatible
with the SATA 3.0 bus. You can connect an SSD for huge data transfer and storage, but
please note that it's not available simultaneously with the SATA signal of port J26.
Additionally, the slot also supports a size of 3052 and is compatible with
PCIe x1/USB 3.1
to connect a 5G module for high-speed wireless communication.
2.4.14
J25 M.2 M-Key (14)
The VT-SBC-3588 also offers an M.2 M-Key socket that supports the sizes of 2242 and 2280
and is compatible with the
PCIe 3.0 x4 to connect an SSD for storage expansion.
2.4.15
J36 RS485/RS232 connector (15)
The VT-SBC-3588 has 4 RS232/RS485 multiplex connectors (2 x 10 x 2mm), namely UART8,
UART0, UART3 and UART1 which are identified as /dev/ttyS8, /dev/ttyS0, /dev/ttyS3 and
/dev/ttyS1, respectively in the software system. The serial mode is switchable by software
commands.
Pinout description of J36:
Pin
Name
Type
Description
1
485_A_1
RS485_1 A
2
232_TX_1
O
RS232_1 data output
3
485_B_1
RS485_1 B
4
232_RX_1
I
RS232_1 data input
5
485_A_2
RS485 Bus_2 A
6
232_TX_2
O
RS232_2 data output
7
485_B_2
RS485_2 B
8
232_RX_2
I
RS232_2 data input
9
GND
P
Ground
UART8
(ttyS8)
Pin 1
UART0
(ttyS0)
UART3
(ttyS3)
UART1
(ttyS1)