The Hp-Ib Interface; The Rs-232-C Interface - HP 1660CS-Series User Manual

The RS-232-C, HP-IB, and Centronics Interfaces

The HP-IB interface

The HP-IB interface
The Hewlett-Packard Interface Bus (HP-IB) is Hewlett-Packard's
implementation of IEEE Standard 488-1978, "Standard Digital Interface for
Programmable Instrumentation." HP-IB is a carefully defined interface that
simplifies the integration of various instruments and computers into systems.
The HP-IB interface uses an addressing technique to ensure that each device
on the bus (interconnected by HP-IB cables) receives only the data intended
for it. To accomplish this, each device is set to a different address and this
address is used to communicate with other devices on the bus. The HP-IB
address is the only HP-IB interface setting configurable from the logic
analyzer.
The HP-IB address can be set to 31 different HP-IB addresses, from 0 to 30.
Simply choose a compatible address for your device and software. The
default address for all HP-IB logic analyzers is 7. In the System External I/O
menu, select HP-IB Settings and then set the Address field to your address.

The RS-232-C interface

The RS-232-C interface is Hewlett-Packard's implementation of EIA
Recommended Standard RS-232-C, "Interface Between Data Terminal
Equipment and Data Communications Equipment Employing Serial Binary
Data Interchange."
With this interface, data is sent one bit at a time and characters are not
synchronized with preceding or subsequent data characters. Each character
is sent as a complete entity independent of other events.
The paragraphs below describe the settings for RS-232-C. You can change
these settings by going to the System External I/O menu and selecting RS232
Settings. Each field in the Settings pop-up menu presents a list of valid
choices.
Baud rate
The baud rate is the rate at which bits are transferred between the interface
and the peripheral. The baud rate must be set to transmit and receive at the
same rate as the peripheral.
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