NBS-41 PCI RS-485 Serial Interface Card (opto-isolated)

Description Documentation RS-485 Serial Device Network Interface Cards The Cimetrics 9-bit products allow networking of serial devices - usually microcontrollers used in process instrumentation. For those who have been using Cimetrics 9-bit NBS products for years, the NBS-41 and NBS-42 are the last PC plug-in RS-485 cards in that series. It marks more than twenty years of Cimetrics support for its 9-bit customers, and represents Cimetrics' continued commitment to legacy support. Based on an Intel 82510 UART, the NBS-41 and NBS-42 have several features particularly suited to RS-485 multi-drop networking. Some of their special features are as follows: support for the 9-bit character format commonly used in microcontroller serial networks speeds of up to 250,000 bits/second built-in ESD protection reduces failures slew-rate limited RS-485 transceiver reduces RFI and cable termination problems hardware can automatically perform transmit/receive switching jumper selected RS-485 bus t