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Installation
The INP PCA obtains its operating power directly from the computer system power supply. All HP 3000
Series 37 Computer Systems have an adequate power supply to accommodate the addition of an INP or
multiple INPs (up to three INP subsystems in the same HP 3000/37 with the optional Extender Box)
without the need for any power supply modification.
peA Jumpers and Switches
The jumpers used on the INP PCA board have all been preset during board calibration at the factory, and
no field alterations are required. There is, however, the device address switch (a single rotary switch
labelled "DEVICE ADDR") that must be manually set to configure the INP for your specific system and
application. Figure 2-1 shows the location of this switch. Set the device address (DEVICE ADDR) switch
before
installing the PCA board in the computer card cage.
The device address switch is a thumbwheel switch with eight numbered positions (0 through 7). The
setting of this switch identifies the device number assigned to this INP and is read by the processor.
Rotate the switch to display the appropriate number, as follows:
1.
Determine the number of devices allowed and the mix requirements for the Peripheral
Interface Channel (PIC) to be used. For configuration details and limitations, refer to the
Configuration Guide
for your system.
2.
Identify the number of devices attached to the PIC and the highest device number used.
3.
Set the INP device number (not to exceed 7) by rotating the DEVICE ADDR switch to the next
higher available device number.
4.
Make a note of the number you set into the DEVICE ADDR switch (in step 3), as it will be
used in the MPE configuration dialogue (described in Appendix A).
2-2
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Table of Contents
Troubleshooting
