Pentium based terminal controller for Multibus II
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Concurrent Technologies product story
Edited by the Engineeringtalk editorial team
Nov 13, 2000
Concurrent Technologies announces its Pentium Based Terminal Controller for Multibus II, which will appeal to applications requiring a large number of serial channels within a single Multibus II slot
Concurrent Technologies announces the release of their Pentium Based Terminal Controller for Multibus II.
The CC450/PEx is designed to provide the same functionality as older 80486-based products, with the benefits of Pentium-class performance and additional memory capacity.
The board will particularly appeal to applications requiring a large number of serial channels within a single Multibus II slot, or where high performance processing power is required for data encryption/decoding.
The board is also an easy upgrade path for many existing 80486-based products.
The serial interfaces are implemented using "Serial Controller Modules" each fitted with twelve 82510 asynchronous serial controllers providing twelve asynchronous RS232C serial channels per module.
One, two or three modules may be fitted to the board to provide a flexible and scaleable approach to providing 12, 24 or 36 full duplex channels.
Baud rates up to 38.4 kbaud are supported and each channel is accessed through an individual RJ45 connector mounted on the front panel.
To make the board more reliable and serviceable the stacked modules use positive retention pin and socket type connectors.
The board's processing performance is provided by the use of a 133MHz Pentium CPU, with built in floating point co-processor ensuring code compatibility with older 80x86 based designs.
256Kbyte of fast secondary level cache and a high performance DMA controller also ensures that Multibus II message passing performance is maximized.
Up to 64 Mbytes DRAM can be supported using two 72-pin SIMMs and 1 Mbytes Flash EPROM using two 512Kbyte devices.
The CC450/PEx also features a full 32-bit Message Passing Multibus II IEEE 1296 interface using an 82389 Message-Passing Coprocessor (MPC) and microcontroller.
The Central Services Module (CSM), which provides system-timing clocks, slot arbitration, ID assignments and reset sequencing logic necessary for slot 0 functionality is integrated into the board rather than using an external module.
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