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Overview
RS-232 Serial Port: COM2/3/4 (0V/5V/12V)
2
The serial port is a 16550A high speed communications port that sends/re-
ceives 16 bytes FIFOs. It supports barcode scanners, barcode printers, bill
printers, credit card machine, etc.
USB 2.0 Port
3
The USB (Universal Serial Bus) port is for attaching USB devices such as key-
board, mouse, or other USB-compatible devices. It supports up to 480Mbit/s
(Hi-Speed) data transfer rate.
Security Lock Port
4
This security lock port allows users to secure the system in place with a key or
some mechanical PIN device and attached through a rubberised metal cable.
The end of the cable has a small loop which allows the whole cable to be looped
around a permanent object, such as a heavy table or other similar equipment,
thus securing the system in place.
Antenna Connector
5
This connector allows you to connect an external antenna for wireless LAN.
Keyboard / Mouse Combo Port
6
The standard PS/2® mouse/keyboard DIN connector is for a PS/2® mouse/
keyboard.
1-4
1
6
RS-232
PIN
SIGNAL
DESCRIPTION
1
NDCD
Data Carrier Detect
2
NSIN
Signal In
3
NSOUT
Signal Out
4
NDTR
Data Terminal Ready
5
GND
Signal Ground
6
NDSR
Data Set Ready
7
NRTS
Request To Send
8
NCTS
Clear To Send
9
VCC
5V or 12V selected by jumper
5
9
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