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Wi-Fi Antenna Connector (Openings reserved for antennas)
1
1
These connectors allow you to connect sn external antenna for wireless
communication. User may find two on the front side and 4 on the rear side
of the system.
USB 2.0 Port
This connector is provided for USB peripheral devices.
(Speed up to 480 Mbps)
⚠
2
2
High-speed devices are recommended for USB 3.2 ports whereas low-
speed devices, such as mouse or keyboard, are suggested to be plugged
into the USB 2.0 ports.
RS232/422/485 Serial Port: COM1~4
The serial port is a 16550A high speed communications port that sends/
receives 16 bytes FIFOs. It supports barcode scanners, barcode printers,
bill printers, credit card machine, etc.
3
3
PIN
1
2
3
4
5
6
7
8
9
12
Specifications
Important
PIN
1
2
3
4
5
6
7
8
9
RS422
SIGNAL
DESCRIPTION
422 TXD-
Transmit Data, Negative
422 RXD+
Receive Data, Positive
422 TXD+
Transmit Data, Positive
422 RXD-
Receive Data, Negative
GND
Signal Ground
NC
No Connection
NC
No Connection
NC
No Connection
NC
No Connection
Continued on next column
1 1
5 5
6 6
9 9
RS232
SIGNAL
DESCRIPTION
NDCD
Data Carrier Detect
NSIN
Signal In
NSOUT
Signal Out
NDTR
Data Terminal Ready
GND
Signal Ground
NDSR
Data Set Ready
NRTS
Request To Send
NCTS
Clear To Send
0V/5V/12V
Power Pin
PIN
SIGNAL
1
485 TXD-
2
485 TXD+
3
NC
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC
RS485
DESCRIPTION
Transmit Data, Negative
Transmit Data, Positive
No Connection
No Connection
Signal Ground
No Connection
No Connection
No Connection
No Connection
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