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RS-485 A Proud Legacy

From Advantech Co., Ltd.

"What hath God wrought?" This message, one of the first serial digital communications in history, was sent in American Morse Code on May 24, 1844 by Samuel F. B. Morse to open the first long distance telegraph line (from Baltimore to Washington DC). Since then, serial digital communications have been one of the strongest backbones of technology, from computer backplanes to industrial controls. And they show no sign of being replaced soon.

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Products & Services
Industrial Chassis and Card Cages
Industrial chassis and card cages are metal frames that support and contain electronic components and power supplies. They generally have a backplane with slots to install other peripherals and accessories.
Human Machine Interfaces
Human machine interfaces (HMI) are operator interface terminals with which users interact in order to control other devices.
PC/104 Modules
PC/104 modules are tied to the integrated system architecture (ISA) bus standard that is used mainly in embedded systems. Modules are 3.6" x 3.8" and can be self-stacked to save space.
Computer Motherboards
Computer motherboards are printed circuit boards (PCBs) that house basic computer circuitry and vital components. They are devices into which other computer boards or cards are plugged.
Relay Boards
Relay boards are computer boards with an array of relays and switches. They have input and output terminals and are designed to control the voltage supply.
Product Announcements
ACCES I/O Products, Inc. - PCI Express (PCIe) Data Acquisition/Control Cards
The PCIe-COM family is a new series of PCI Express serial communication cards featuring both DB9 and RJ45 connectivity and data rates up to 921.6 kbps. Choose from a selection of 8, 4, or 2-ports of... (read more)
ACCES I/O Products, Inc. - PC/104 8, 4 and 2 Port Serial Communication Boards
This is an eight-, four-, or two-port, asynchronous, serial communication board designed for use on the PC/104 bus. It supports RS-232, RS-422 or RS-485 communications. The board may be installed in... (read more)
ACCES I/O Products, Inc. - PCI Express serial communication cards
High performance PCI Express (PCIe) data acquisition and control cards from ACCES are now shipping... (read more)
Schroff - CompactPCI Serial Systems
Forced cooling and high IP protection make CompactPCI systems suitable for use even in demanding environments. Schroff® CompactPCI Serial Systems offer data transmission speeds of up to 32 GB/s. (read more)
Topics of Interest

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1.1 Motivation The history of electronics has been inextricably linked with the growth of the communications industry. Electronic communication served as a major enabling technology for the...