Description
\nEmerald-MM-Opto provides an integrated, rugged, and reliable solution for PC\/104-expandable embedded systems requiring serial communications in demanding applications. It offers 2 or 4 optically isolated serial ports with RS-232, RS-422, and RS-485 protocols, as well as 24 digital I\/O lines, all on a single board.<\/p>\n
Optical isolation of 1000V DC or AC protects your embedded system from ground differentials or noise spikes that would damage non-isolated boards. Each port is isolated from the other ports as well as the system. Extended temperature capability (-40 to +85\u00baC) enables the board to operate in vehicles such as trains and buses without concern for temperature swings. These features enable Emerald-MM-Opto to provide reliable serial communications in harsh environments such as trains and buses.<\/p>\n
In addition to ruggedness, Emerald-MM-Opto offers flexibility and advanced features. Each serial port is independently configurable for protocol and IRQ settings. Eight different I\/O address combinations are built in. The 16C2850 UART chips with 128-byte FIFOs support high-speed data rates at up to 460kbps without overloading the system processor. Auto-flow control enables easy RS-485 operation by automatically enabling and disabling the transmitter during data transmission, to prevent bus conflicts or excessive software overhead.<\/p>\n
Emerald-MM-Opto also offers multiple termination methods on the serial ports to support varying interface requirements. In RS-422 or RS-485 networks, termination resistors are normally installed at the endpoints of the cables to minimize reflections on the lines. The board provides jumper-selectable termination and pull-up\/pull-down resistors for this purpose. The sensible jumper positioning and layout help simplify board configuration and minimize confusion.<\/p>\n
The 24 digital I\/O lines are based on an 82C55 chip and feature programmable direction in 4- and 8-bit groups. All I\/O lines contain user-configurable 10K Ohm pull-up resistors for convenience. This 2-in-1 combination of serial ports and digital I\/O can help lower the size and cost of your embedded system by eliminating one additional board from your PC\/104 stack.<\/p>\n
Diamond Systems offers appropriate mating cables for your convenience. Cable no. C-DB9M-1 provides a DB-9 male connector with standard PC serial port pinout. Each serial port requires one cable. Cable no. C-26-18 is a 26-conductor ribbon cable for the digital I\/O lines.<\/p>\n","protected":false},"excerpt":{"rendered":"
Description Emerald-MM-Opto provides an integrated, rugged, and reliable solution for PC\/104-expandable embedded systems requiring serial communications in demanding applications. It offers 2 or 4 optically isolated serial ports with RS-232, RS-422, and RS-485 protocols, as well as 24 digital I\/O lines, all on a single board. Optical isolation of 1000V DC or AC protects your…<\/p>\n","protected":false},"featured_media":8042471,"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":[10505,10464,10757,10061,10512],"product_tag":[],"product_facet":[10818],"class_list":["post-1018099","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