USB to RS-232/422/485 Isolated Converter Quatech Model SSU2-400I Operation Manual
First Edition, Jun 2008 1
Table of Contents 1. Introduction ……………………………………………… 2. Package checklist …………………………………………… 3. Product Specification …………………………………… 4. Product Panel Views Description …………………… 2 3 4 7 Product Views …………………………………… 7 USB Type B Connector ……………………………………… 7 Serial I/O Port of RS-232/422/485 ………………………..… 8 Terminator …………………………………………………… 8 LED Indicators ……………………………………………… 9 5. Driver installation …………………………… 10 Driver Installation …………………………………………… 10 6.
1 Introduction Thank you for your purchase of the USB to serial adapter. Featuring USB (Universal Serial Bus) interface technology, it is converted the USB to RS-232 or industrial RS422/485, so it can be easily adopted for industrial machines with RS232 or RS422/485 interfaces. The USB to Serial converter is fully compatible with the USB V1.0 2.0 . This converter is USB bus powered and does not need any power adapter.
2 Package checklist This product is shipped with the following items: 1 unit of USB to RS-232/422/485 Isolated converter 1 unit of A type to B type USB cable User Operation Manual Software CD NOTE: Notify your sales representative if any of the above items is missing or damaged 4
3 Product Specification Serial Port RS-232 ● No. of Ports : RS-232 * 1 Port ● Port Type : DB9 male ● RS-232 Signals : DCD , RX , TX , GND , RTS , CTS , DTR , DSR ● Receive buffer : 576 Byte ● Transmit buffer : 640 Byte ● Baud Rate Speed : 300 bps 921.6k bps ● Parity :None , Odd , Even , Space , Mark ● Data Bit : 5 , 6 , 7 , 8 ● Stop Bit: Auto-Detection : 1 , 1.
RS-422/485 ● No. of Ports : 422/485 * 1 Port (Terminal Block) ● RS-422 Signals : RxD+ , RxD- , TxD+ , TxD- in Full-duplex (Surge Protection) ● RS-485 Signals : Data+ , Data- in Half-duplex (Surge Protection) ● Receive buffer : 576 Byte ● Transmit buffer : 640 Byte ● Baud Rate Speed : 300 bps 230.
Humidity: 5-95% RH Dimensions : 88 * 91 * 27 mm ( W * D * H ) WEIGHT : 94 gm Regulatory Approvals : ● EMC : FCC Class A, CE Class A ● WARRANTY : 1 Year 7
4 Product Panel Views Description Product Views Serial I/O Port RS422/485 USB Type B Connector Serial I/O Port RS-232 LED Indicators USB Type B Connector Power Outlet - The USB to Serial converter is powered by USB (Universal Serial Bus) port a single 5V DC (Inner positive/outer negative) power supply and 500mA of current. If the power is properly supplied, the SYS indicator of red color LED will be on.
USB Type B Port This converter’s USB port is a USB type B connector and it is fully compatible with the USB V1.1 ~ 2.0. Serial I/O Port Serial I/O Port RS-485/RS-422 Terminator Serial I/O Port RS232 Serial I/O Port of RS-232/422/485 To connected the serial data cable between the converter and the serial device. Follow the parameter setup procedures to configure the converter (see the following chapters).
LED Indicators SYS (Red) It is a power indicator (When the power is on, the SYS LED will be on.) RX (Orange) Data received indicator (When data are received from the USB, the RX LED will be on.) TX (Green) Data sent indicator (When data are sent out to the USB, the TX LED will be on.
5 Driver Installation When setting up this converter for the first time, you have to install the driver CP201x first in your computer device before connecting it. OS as Windows 98 / XP / 2000 / Vista …, Linux …, Mac … There are several The utility CD is enclosed in the device box. The driver of all these USB to RS-232/422/485 converters must be installed first before you use it.
If your computer equipment is running Windows OS that the pop-up screen of installing massage will be showed as “CP210x VCP Drivers for Windows 2000/XP/2003 Server/Vista on your computer” and then to Click “Next” icon for going to next step. C. Choose “Accept” item of license agreement After reading the license agreement then if you agree the terms to choose the item “I accept the term of the license agreement”.
D. Choose destination location It is for saving the CP201x driver software in destination location of computer. E. Execute the program installation Click the “install” icon to begin installation of CP210x driver.
F. Scan and install CP210x USB to UART Bridge Driver Installer After click “Install” icon, system is going to scan CP210x USB to UART Bridge driver installer and installation location.
G. “System Settings Change” Notice The massage is notified you that your computer has been changed after installing of CP210x USB to UART Bridge Driver Installer. The new setting will take effect after restarting your computer. H. InstallShield Wizard Complete CP201x driver has successfully installed and click “Finish” icon for exiting the wizard.
6 Hardware Installation & Setup Hardware Installation 1. Power on your computer and until OS is ready after booting 2. USB cables have two distinct connectors. The Type A connector is used to connect the cable from a USB device to the Type A port on a computer or USB hub. The Type B connector is used to attach the USB cable to a USB device. 3. Connect USB cable between a PC USB port (Or USB hub) and this converter’s type B USB port.
4. Connect the serial port (RS232 or RS422 or RS485) equipments to this USB to serial converter. 5. After connecting the USB to serial converter, then a massage as “New device has been connected” will be pop-up on screen. However, the CT201x driver needs to be installed in PC in advance. 6. The SYS indicator of red LED will be turn into on. The USB to serial converter is active.
Hardware Setup When the USB to serial converter has successfully connected and you can setup more detailed parameters by Computer’s Management. A. Into “Manage” icon in My Computer Click “My Computer” icon and then press the right side button of mouse. After you click the manage item on list bar then “Computer Management (Local) list will be pop-up.
B. Choose “Device Manager” and click “Ports(COM & LPT)” in Device Manager Click “Device Manager” item, all devices of computer will be list on right site of screen and then click “Ports (COM & LPT) item for looking for more COM devices. C. Detail parameters of CP210x USB to UART Bridge Controller Click “CP210x USB to UART Bridge Controller” for getting more detail information of the device.
D. Device status of CP210x USB to UART Bridge Controller This is showing the statues of device and some product general information. COM port number of device is also display on. E. “Driver” detail information This is for checking more detail information of driver in this device.
F. “Details” item It is for checking device ID numbers as device instance ID.
Appendix A Pin outs and Connector □ □ □ USB Layout Diagram Type A USB Connector Type B USB Connector □□ RS-232 Pin Assignment The pin assignment scheme for a 9-pin male connector is given below.
Serial Device 2 3 RX TX 5 7 8 GND RTS CTS USB to RS-232/422/485 Converter 3 2 TX RX 5 GND 8 CTS(Flow Control) 7 RTS(Flow Control) □□ RS-422 Pin Assignment The pin assignment scheme for a 4-pin RS-422 is given below.
