Interworld Electronics supplies a wide range of Synchronous Communication boards for PCI, PCI-Express (PCI-e), PC/104, PC/104-Plus and PCMCIA based systems. The range includes single, dual and four port adapters for RS-232, RS-422/485 and V.35 protocols.
PCIe Bus Synchronous Four Port RS422/RS485 Communications Adapter
Low Profile PCI Express 1-Port RS-232, RS-422, RS-485, RS-530, RS-530A, V.35 Synchronous Serial Interface
PCIe Bus Synchronous Four Port RS422/RS485 Communications Adapter w/DMA
PCIe Bus Synchronous Four Port LVDS/RS644 Communications Adapter w/DMA
USB Synchronous RS232/RS422/RS485/LVDS Serial Adapter