Description
\nEmerald-MM-8Plus is a high performance multi-protocol serial communications board offering eight ports on a single PC\/104-Plus module. Supporting baud rates up to 921.6K bps in RS-232 mode or 1.8432Mbps in RS422 or RS485 mode, each port can be individually selected for RS-232, RS-422, RS-485 or TTL level operation. Both local-echo and non-local-echo modes are supported for RS-485. Protocol selection is achieved via a jumper block for each of the eight ports. Line termination for RS-422\/485 modes is also jumper-selectable.<\/p>\n
Configuration of the Emerald-MM-8Plus is simple, using the built-in plug and play technology. For manual configuration, the base address for the board may be set in software, defining a 4K block of configuration space used to access the on-board registers. A single 32-bit read shows the detailed interrupt status for each of the eight ports. The PCI \u201cslot\u201d is defined through a jumper block. As with all Diamond Systems products, jumpers are paralleled with locations for zero ohm resistors to create a rugged, shock-and- vibration-resistant implementation.<\/p>\n
Emerald-MM-8Plus is based on the Exar 17D158 octal UART IC. This device contains 8 4 identical sets of 16C55registers, one for each port, and is compatible with the standard PC serial port. Each port contains 64-byte transmit and receive FIFOs to support the high-speed data rates.<\/p>\n
Emerald-MM-8Plus also offers 8 convenient digital I\/O lines. The direction of each line is independently programmable. Finally, Emerald-MM-8Plus also offers a 16-bit programmable counter \/ timer with a configurable clock source.<\/p>\n
Two I\/O headers are provided, with four serial ports and four digital I\/O lines on each header. The board operates on +5V only, eliminating the need for a +12V supply that is often required for serial port operation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Description Emerald-MM-8Plus is a high performance multi-protocol serial communications board offering eight ports on a single PC\/104-Plus module. Supporting baud rates up to 921.6K bps in RS-232 mode or 1.8432Mbps in RS422 or RS485 mode, each port can be individually selected for RS-232, RS-422, RS-485 or TTL level operation. Both local-echo and non-local-echo modes are…<\/p>\n","protected":false},"featured_media":8042452,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[956],"product_cat":[10507,10466,10759,10067,10513],"product_tag":[],"product_facet":[10813],"class_list":["post-1018086","product","type-product","status-publish","has-post-thumbnail","product_brand-diamond-systems","product_cat-io-expansion-modules-and-accessories","product_cat-industrial-computers","product_cat-products","product_cat-serial-io-modules","product_cat-single-board-computer","product_facet-facet-industrial-computers","first","instock","downloadable","shipping-taxable","product-type-simple","entry","content-bg","loop-entry"],"yoast_head":"\n