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USB2-8COMi-TB USB 2.0 to Industrial 8-Port RS232/422/485 Adapter
The USB2-8COMi-TB USB to octal industrial serial adapter is designed to
make RS-422 and RS-485 port expansion quick and simple. Connecting
to a USB port on your computer or USB hub, the USB to industrial serial
adapter instantly adds four RS-232/422/485 multi-electrical interface
serial communication ports to your system. By taking advantage of the
Plug-and-Play, and Hot-Plug features of the USB bus, the USB2-8COMi-
TB industrial serial adapter makes it easier than ever to add 8 industrial
communication ports to your system.
By plugging the USB octal industrial serial adapter to the USB port, the
adapters are automatically detected and installed. There are no IRQ &
COM port conflicts, since the port doesn't require any additional IRQ, DMA, memory as resources on the system. The RS-
232 or RS-422/485 port functions as a native Windows COM port, and it is compatible with Windows serial
communication applications. Each port is individually configurable. The adapter is designed with external; switches to
set RS-232, RS-422, or RS-485 ports and different operation modes conveniently.
Specifications & Features
•
Supports USB 1.1 and USB 2.0 transfer speeds from 1.5 up to 480 Mbps, automatic link and speed detection.
•
Adds eight high-speed RS-232/422/485 serial ports via USB connection.
•
2K byte receive buffer.
•
2K byte transmit buffer for high speed data throughput.
•
Requires no IRQ, DMA, I/O port.
•
Data rates: 300 bps to 921.6K bps.
•
Each serial port supports 5-pin screw-lock-type terminal block connector.
•
Auto-transmit buffer control for 2-wire RS-485 half-duplex operation.
•
Biasing and Termination resistors installed on-board.
•
Supports RS-232 3-wire signals: RxD, TxD, GND
•
Supports RS-422, RS-485 4-wire signals: TxD-, TxD+, RxD+, RxD-
•
Supports RS-485 2-wire signals: data-, data+
•
Monitor LEDS of TxD, RxD indicating port status
•
AC to DC-12V, 1A switching power supply included
•
Virtual COM port drivers available for Windows 10, 8.1, 8, 7, 2003, 2000
•
Industrial grade metal case with DIN-rail ears for Din-rail mounting.
•
Chipset: Genesys GT852G 4-port USB 2.0 hub chip + FTDI FT4232H USB 2.0 to quad UART chip
Sales@coolgear.com
www.CoolGear.com
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Summary of Contents for CoolGear USB2-8COMi-TB
- Page 1 USB2-8COMi-TB USB 2.0 to Industrial 8-Port RS232/422/485 Adapter The USB2-8COMi-TB USB to octal industrial serial adapter is designed to make RS-422 and RS-485 port expansion quick and simple. Connecting to a USB port on your computer or USB hub, the USB to industrial serial adapter instantly adds four RS-232/422/485 multi-electrical interface serial communication ports to your system.
- Page 2 USB2-8COMi-TB Specification Table Serial Ports 8-Port RS-232/422/485 RS-232 Signals TxD, RxD, GND RS-422 Signals TxD-, TxD+, RxD+, RxD- TxD-, TxD+, RxD+, RxD-, GND (4 wire) RS-485 Signals Data-, Data+, GND (2 wire) Connectors Eight 5-pin screw-lock-type terminal block connectors Protection...
- Page 3 RxD- (RxD) No Function Ground GND : Signal Ground Power Output The picture below shows a 2-pin screw-lock-type terminal block connector. It provides a lockable terminal power connector to supply 5V, 500mA power to external devices requiring power. Sales@coolgear.com www.CoolGear.com...
- Page 4 Ground GND : Signal Ground Hardware Setting and Installation USB2-8COMi-TB There are eight 4-pin DIP switches on the bottom of the metal case. The DIP switches are used to select the serial mode of operation. You’ll need to open the bottom of the case by removing the protective metal plate to access and set the DIP switch settings to RS-232 mode, or RS422, or RS-485 mode as per the requirements of your application.
- Page 5 The RS-422 and RS-485 use the same balanced transmission method. Signals are not transmitted as voltage on a single wire, as RS-232 does. Instead two wires are used; when one carries high voltage, the other one carries low voltage. The Sales@coolgear.com www.CoolGear.com...
- Page 6 To insure the signals are in the valid voltage range and the differential voltage can be correctly sensed by the receiver, the GND lines of the transmitter and receiver must be connected. RS-422 signals connected The following diagram shows RS-422 signals connected. Sales@coolgear.com www.CoolGear.com...
- Page 7 10 receivers, as stated in the specifications of RS-422. Since the USB quad industrial serial adapter uses RS-485 line driver technology, up to 32 receivers are possible. The following diagram shows RS-422 and RS-485 4-wire scheme: RS-485 2-Wire Scheme The following diagram shows RS-485 2-Wire Scheme: Sales@coolgear.com www.CoolGear.com...
- Page 8 , and save them to a known folder on the PC. The desktop can be used so that the driver folder can be easily located. To locate that “Device Manager” on Windows, press the “Start” button and select “Control Panel” (right click “Start” button for Windows 10, 8.1) Sales@coolgear.com www.CoolGear.com...
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