HP 744 - Manual (Page 29)

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Model 744 Board Computer Overview
Installation Overview
Installation Overview
Chapter 2 provides step-by-step instructions for attaching and installing
accessories in a typical VME card cage, and connecting external devices.
Accessories are products that attach to the computer’s system board. They
must be attached before installing the board computer in a VME card cage.
Devices are products used externally to the board computer. Examples are
keyboards, monitors, and mass storage devices. Other devices are connected
through cables. Depending on your specific application, you may need one
or more accessory and device products. Installation instructions for most
products used directly with your Model 744 Board Computer are explained
in this manual.
Chapter 3 presents the installation tasks required to install and configure
your board computer.
Installation Notes
Your Model 744 Board Computer uses micro-miniature connectors for sev-
eral interface ports. Cable connectors for these ports are very small, but may
be positioned so that a slight angle exists between them. This situation has
been tested by HP and full functionality is maintained.
CAUTION: The Model 744 Board Computer’s P2 connector has a local bus on the user-
defined pins. Verify that your VME card cage’s backplane makes no
connections to J2/P2, rows A and C. Refer to IEEE STD 1014-1987, Chapter
7, for more information on use of user-defined pins in VME backplane
connectors.