© National Instruments Corporation
B-1
GPIB-130 User Manual
Appendix B
Specifications
This appendix lists the specifications of the GPIB-130.
System Configuration
Distance per extension
up to 300 m
Loading per extension
up to 14 additional devices
Multiple extensions
permitted in any combination of star or linear pattern
GPIB driver output circuit and T1
timing of source device
no restrictions
Note: T1 is the settling time (DIO valid to DAV) and varies according to the type of drivers and
the system configuration used.
Performance Characteristics
Speed (buffered mode)*
900 kbytes/sec maximum
Speed (unbuffered mode)*
5 m
20 m
50 m
100 m
300 m
790 kbytes/sec maximum
640 kbytes/sec maximum
460 kbytes/sec maximum
315 kbytes/sec maximum
140 kbytes/sec maximum
Functionality
transparent GPIB operation except for stored parallel
polls
Interlocked IEEE 488 handshake
maintained across the extension in Unbuffered mode