Conference 49.910::iet11

2.0. "What is IET11? (Data Sheet)" by KARPO::GILOJ () Wed Aug 12 1992 14:11

IET11 TURBOchannel IEEE488 Converter
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High-Performance TURBOchannel I/O Connection With IEEE488 Bus For Realtime 
Computing
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The IET11 provides IEEE488 bus capabilities for the DECstation 5000 family of  
workstations.  It connects the instruments and measuring devices, communicating 
via the IEEE488 bus to the TURBOchannel, Digital's integral I/O interconnect 
for workstations.  

The IET11 is a high-performance TURBOchannel IEEE488 converter which allows 
standardized, bi-directional communications between the TURBOchannel inter- 
connect and the widely used IEEE488 bus, also known as the GPIB or IEC bus.  
It features all major IEEE488 interface functions specified in the IEEE 488.1 
and 488.2 standards, and provides enhanced DMA transfer capability with data 
transfer rates of 1 Mbyte/second for both read and write operations.  

A DECstation 5000 workstation equipped with the IET11 is well suited for 
instrument control applications where low-cost and high-performance require- 
ments are important selection criteria.  These applications can be found in 
research and development laboratories, service laboratories, research 
institutions, education, and government.  Applications include data acquisition 
systems, automated test equipment, and numerous graphic applications including 
digitizing analog video signals for CAD/CAM, high-speed laser printers, and 
color scanners.

Features:

o Provides IEEE488 capability to DECstation 5000 series workstations

o Low-cost, high-performance IEEE488 bus converter that sustains data transfer 
  rates of 1 Mbyte/sec. 

o Compliance with all revisions of the IEEE488 standard, including 
  IEEE488.2-1987, and "Standard Commands for Programmable Instrumentation"

o Compatibility with TURBOchannel I/O architecture

o ULTRIX-based software driver including diagnostic software

o Supported by "DEC Realtime Integrator" software


(block diagram)

(Note comment re block diagram on revised copy)

IET11 Overview

The IET11 is a combination hardware/software solution that includes the 
TURBOchannel IEEE488 Bus Converter, ULTRIX-based device driver, and documen- 
tation.  The software consists of a loadable, multitasking device driver and 
programs, which allow a DECstation 5000 workstation to act as an IEEE488 
controller with complete communication and management capabilities.  In 
addition, the device driver is LIO-compliant; i.e. the IET11 is supported by 
the latest version of Digital's Realtime Test Integrator software platform.  
The software runs under ULTRIX, version 4.2 and compatibility will be 
maintained with future ULTRIX releases. 

The IET11 provides full IEEE488 interface functionality including, controller, 
talker and extended talker, listener and extended listener, service request, 
parallel poll, etc.  It features high-speed data transfer with a sustainable 
data transfer rate capability of 1 Mbyte/second for both read and write 
operations.

The IET11 hardware, a PC board which can be installed in any single-width 
TURBOchannel interconnect slot  supports up to 14 IEEE488 instruments or 
devices.  The use of application-specific circuits (ASIC's) means that the 
IET11 provides the highest obtainable performance specified by the IEEE488 
standard.  In order to achieve this performance and functionality, the IET11 
provides enhanced DMA capabilities, FIFO buffers for decoupling IEEE488 
transfers from TURBOchannel interconnect transfers, and a byte-to-longword 
(32-bit) packing/unpacking feature implemented by hardware.

The IET11 is designed to be installed by the user and is fully supported by 
Digital Services on a worldwide basis.

Digital's software platform "DEC Realtime Test Integrator for ULTRIX fully 
supports the IET11.  This product is an icon-based, graphical programming 
environment that allows for the development of realtime applications without 
programming.  

Specifications
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General 
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System Requirements               DECstation 5000 family
Operating System                  ULTRIX 
Power from TURBOchannel           +5VDC, 4A maximum, 2.1A typical 
Dimensions                        5.675 x 4.6 inches
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Operating Environment
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Temperature                       10 - 40 'C   
Environment                       10-90% relative humidity, noncondensing  
IEEE488 Data Transfer Rate        1 MB/sec. for both read and write operations
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IEEE488 Interface
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Implementation                    SH1, AH1, T5, TE5, L3, LE3, SR1, 
                                  PP1, PP2, RLI, E1, E2, 1EEE188.1-1978,
                                  IEEE488.2-1987, TURBOchannel hardware
Controller Subsets                C1, C2, C3, C4, C5
Connector                         IEEE488 standard 24-pin
Mounting Requirements             Mounts inside DECstation using screws 
                                  provided. No external power supply.
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Ordering Information
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Order number        Description                             Media              

IET11-AA            TURBOchannel/IEEE488 Converter           TK50
BN01A-02            Two meter shielded IEEE488 instrument 
                    cable               

Optional            DEC Realtime Test Integrator for ULTRIX          
                    (For more details refer to SPD 32.43,XX)  
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For More Information

For more information about Digital's IET11, call your local Digital Sales 
Representative or call the Digital Services Sales Support Team at 800-832-6277 
or 603-884-8900.

Digital believes the information in this publication is accurate as of its 
publication date; such information is subject to change without notice.  
Digital is not responsible for any inadvertent errors.    

The following are trademarks of Digital Equipment Corporation:  Digital, DEC, 
TURBOchannel, ULTRIX, DECstation, and the Digital logo.

Printed in the U.S.A.  EC-    -76 REL#   /92 07 72 35.0 UDS/MKO Copyright 
1992 Digital Equipment Corporation.  All rights reserved.