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National Instruments GPIB-120A Manuals
Manuals and User Guides for National Instruments GPIB-120A. We have
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National Instruments GPIB-120A manual available for free PDF download: User Manual
National Instruments GPIB-120A User Manual (36 pages)
National Instruments High Speed Bus Expander User Manual
Brand:
National Instruments
| Category:
Network Hardware
| Size: 0 MB
Table of Contents
User Manual
1
Limited Warranty
3
Warning Regarding Medical and Clinical Use of National Instruments Products
3
Canadian Department of Communications
4
Federal Communications Commission
4
Table of Contents
6
About this Manual
8
Organization of this Manual
8
Conventions Used in this Manual
8
Related Documentation
9
Customer Communication
9
Chapter 1 Introduction
10
Description of the GPIB-120A
10
Figure 1-1. Typical GPIB-120A Extension System (Physical Configuration)
10
Figure 1-2. Typical GPIB-120A Extension System (Logical Configuration)
11
What You Need to Get Started
12
Optional Equipment
12
Unpacking Your GPIB-120A
12
Chapter 2 Connection
13
Isolation Considerations
13
Placing Your Instruments
14
Connecting the GPIB-120A
14
Connecting to Hewlett-Packard Controllers
14
Mounting the GPIB-120A
14
Chapter 3 Theory of Operation
15
Circuitry of the GPIB-120A
15
Figure 3-1. GPIB-120A Block Diagram
15
The GPIB-120A Front Panel
16
Power on
16
System Controller Detection
16
Active Controller Detection
16
Source Handshake Detection
16
Data Direction Control
17
Parallel Poll Detection
17
Acceptable Identification Codes
18
Table 3-1. IEEE 488 Capability Identification Codes
18
Appendix A Operation of the GPIB
19
History of the GPIB
19
GPIB Operation
19
Types of Messages
19
Talkers, Listeners, and Controllers
20
The Controller-In-Charge and System Controller
20
GPIB Signals and Lines
21
Data Lines
21
DAV (Data Valid
21
Handshake Lines
21
NDAC (Not Data Accepted
21
NRFD (Not Ready for Data
21
ATN (Attention
22
EOI (End or Identify
22
IFC (Interface Clear
22
Interface Management Lines
22
REN (Remote Enable
22
SRQ (Service Request
22
Physical and Electrical Characteristics
23
Figure A-1. GPIB Connector and the Signal Assignment
23
Figure A-2. Linear Configuration of the GPIB Devices
24
Figure A-3. Star Configuration of the GPIB Devices
25
Configuration Restrictions: the Role of Expanders and Extenders
26
Related Document
26
Appendix B Specifications
27
Table B-1. System Configuration
27
Table B-2. Performance Characteristics
27
Table B-3. Electrical Characteristics
28
Table B-4. Environmental Characteristics
28
Table B-5. Physical Characteristics
28
Appendix C Multiline Interface Messages
29
Appendix D Customer Communication
32
Technical Support Form
33
Other Products
34
Documentation Comment Form
35
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