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Installation and Configuration
3
Introduction
This section provides information for you to install and configure the 27113A
HP-IB Channel Card. For reference, you will also need your computer system
installation manual.
General Guidelines for HP-IB Configuration
The following general guidelines should be observed when configuring an HP-IB
system:
1.
Devices or cable segments should not be added to an HP-IB system that is
active.
If a device is to be added to an active HP-IB system, the possibility of errors
will be minimized if the following procedure is used:
a.
Attach al1 new cables to the new device to be added. Do not attach
any unterminated cables to the existing bus.
b.
Power on the new device.
c.
Attach the new device (with power on) and its cable to the existing
bus as a unit.
2.
On an active HP-IB system, all devices attached should be powered-on to
avoid excessive loads caused by powered-down devices.
3.
The selection of Medium/Slow-speed or High-speed operation depends on
both the number, and performance characteristics, of the attached devices.
Devices that talk at a slower rate may be configured in the same system as
high-speed devices, provided all of the requirements for high-speed operation
are met. However, bus performance may decrease.
4.
If an HP-IB system is configured for high-speed operation, it is required that
the HP-IB System Controller must have the necessary additional high-speed
termination resistors. Thus, the high-speed load resistors should NOT be
installed in the interface card when it is NOT being used as the System
Controller (switch SI(6), "SCTL", in DOWN position). Refer to figure 3-2 for
the original factory switch (SI) settings.
3-1
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