  USB-4COMi-SI-M USB to Quad RS-422/485 Adapter (with Optical Isolation & Surge Protection) For full details abut the USB-COMi-M read our documentation. USB-4COMi-SI-M USB to Quad RS-422/485 Adapter (with Optical Isolation & Surge Protection) Easy plug & play installation. Installed as a standard COM port. Full modem control signals & data signals supported. Serial port speed up to 230,400 bps or 921,600 bps depending on the model. 384 byte receive / 128 byte transmit buffering. USB Cable Included The USB-4COMi-SI-M USB-to-Optical isolated Quad RS-422/485 Serial Adapter is designed to make serial port expansion quick and simple. Connecting to a USB port on your computer or USB hub, the USB Serial Adapter instantly adds four RS-422, or RS-485 serial communication ports to your system. By taking advantage of the USB bus, the USB Serial Adapter makes it easier than ever to add serial ports and serial devices to your system with easy plug-and-play and hot plug features. By plugging the USB Serial Adapter to the USB port, the adapter is automatically detected and installed. There are no IRQ & COM port conflicts, since the ports don't require any additional IRQ, DMA, memory as resources on the system. The adapter is self-powered, and one power supply adapter of 6V/2.1 Amp is included. The adapter is designed with a four external 4-pin dip switches to set RS-422 or RS-485 mode conveniently, without the need to open the metal chassis. Each port can be independently set to RS-422 or to RS-485, depending on your requirement in application. The adapter is with DIN rail bracket for industrial environment. Termination and biasing option are available for data transmission lines. Optical isolation and surge protection are available to USB-COMi-SI-M. The serial line of RS-422/485 port is optically isolated with 2000 volt DC optical isolation. The optical isolation protects your PC from spikes and surges on the RS-422/485 network, by converting the electrical pulse into an optical signal and then changing it back into an electrical pulse. The surges and spikes cannot cross the optical link. The adapter is built-in surge protector to withstand electrostatic discharge and power surges up to 25KV ESD. The USB-to-Optical isolated Quad RS-422/485 Adapter provides instant connectivity to RS-422 or RS-485 communication devices for POS, factory automation equipment, multi-drop data collection devices, bar code readers, time clocks, scales, data entry terminals, PC to PC long distance communications, ATMs and serial data communication in harsh environments. The USB-4COMi-SI-M USB to Industrial I/O provides industrial solution requiring single node or multi-drop communications over short and long distance. |
*** Can't find that item you're looking for? Please let us know what we should bring in stock. Have Questions? Our Tech Guys Can Help! Support Center Hours: 11AM EST - 4 PM EST Monday - Friday Only! 
| ||||||||||||||||
| Conditions of Use Security Info Shipping Info Customer Care Copyright @ 1997-2009 CoolDrives and its licensors. All Rights Reserved. CABLEO / QCUSA. Part of COOLDrives Family All Rights Reserved. Fax: (727) 209-1302 E-mail is the recommended and least costly (no long distance charges) method of contacting us. Just in case your question requires a voice call follow up, please include your daytime phone number. Voice mail messages: To call our voice mail center, dial 1 (727) 209-1300. Please include your e-mail address as most questions can be answered more quickly and completely with an e-mail response |
||||||||||||||||
 |  |
Secure Shopping | |
100% Guarantee | |
Returns Made Easy | |
Privacy Policy |  |
Item Appearance will Vary, Specifications are subject to change without prior Notice!