HP 3000 Series Installation And Service Manual

Installation
2-4. Backplane Compatibility
Some of the existing HP 3000 Series II Computer Systems are the
result of a rnodif ication program that upgraded the earlier
pre-Series II systems to Series II status. If your HP 3000
Series II computer is one of these rnodif ied systems, it is
necessary to check the backplane in the I/O card cage for c6mpat-
i bi l i ty with the INP. If the backplane is identified with the HP
part number 30002-60006, it is compatible; so proceed with the
INP installation. If, however, your Series II system still has
the earlier backplane, it is necessary to replace it with the
part no. 30002-60006 backplane before installing the IIJP. The I
appropriate backplane is obtained by ordering Option 001 (see
paragraph 1-3).
2-5. PCA Jumpers and Switches
The jumpers used on the INP PCA boards have all been preset
during board calibration at the factory, and no field alterations
are required. There are, however, four blocks of miniature
cocker switches (called "rocker switch packs") on the INP-MPU
board that must be manually set to configure the INP for your
specific system and application. Figure 2-1 shows the location
of these switches.
Two sets of these rocker switch packs are used to manually set
the HUX service requests (SRO through SR15). Another block of
switches is used to set the DRT number in octal notation. The
Eourth block of switches selects the functions outlined in table
2-3. I
Set the switches as follows before installing the PCA boards in
the computer card cage.
a. The MUX service request switches are the two rocker switch
packs located on the INP-MPU board (part no. 30010-60001) in
columns 12 and 13, at row 7, as shown in figure 2-1. Each
rocker switch pack consists of eight miniature two-position
switches in a block. Doth sets of switches are labeled with
numbers l through 8, and the OPEN position is also labeled on
the switch block. To set the MUX service request, close only
one of the 16 rocker switches while leaving the others in the
OPEN position. Service requests SRO through SR7 are set into
the switch block on the right (column 13, row 7) and SR8
through SR15 are set into the switch block on the left
(column 12, row 7) as listed in table 2-1.
JUN 1980
2-3

HP 3000 Series Specifications

General

Brand	HP
Model	3000 Series
Category	Desktop
Language	English