HP 8712C User Manual

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Automating Measurements
Configuring Your Test System
Expandability and Large Systems
When connecting more than one analyzer to one computer using HP-IB, you
can connect up to 10 analyzers and achieve maximum HP-B3 bus speed. The
IEEE-488 standard states that the bus can achieve a data rate of 500 KBytes
per second for buses up to 20 meters in length, with up to one device per
2 meters of cable.
IEEE-488 provides for 31 unique addresses (0 through 30), however it
restricts the number of devices on the bus to 15. Due to this restriction,
you may need to add more computers as you add more analyzers. Set each
analyzer’s address via the (SYSTEM OPTIONS] HP-I&I menu.
If you have Option lF7 installed in your analyzer, you can overcome the
physical limitations of HP-IB cabling and create large systems with hundreds
of analyzers. lo-BaseT LAN provides a theoretical bandwidth of close
to 1 MByte/second, although in practice, throughput will be slower due
to overhead and turn-around-time. See your Option IFi’ User’s Guide
Supplement for more information.
Throughput Considerations
When considering the throughput of the system configuration, contributing
factors are:
0 operator interaction time
l measurement speed
l data transfer speed
l computation speed (when applicable)
Each system should be evaluated for throughput based on the sums of these
four factors.
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HP 8712C Specifications

General

Brand	HP
Model	8712C
Category	Measuring Instruments
Language	English