HP 98568A Installation Instruction page 188

HP 98562-66530 Human (System) Interface Board
SKIP?
Unless you intend to connect two computers together with this
interface, you can skip to step 12. The interface is configured to
be system controller and need not be changed.
a. Find the group of nine switches labeled "OPTION CARD". The
switch labeled "SC" in this group is the System Controller switch (see
Figure 5-33).
b. If connecting two computers, only one of them may be set to system
controller. To change this interface to non-system controller, change
the System Controller switch to 0 (the opposite of that shown in
Figure 5-33).
Note: If you will be connecting a disk drive or other peripheral to this
interface, and you will be using an HP Series 200/300 operating system,
do not set this switch to non-system controller.
12. Set the Optional Interface Low/High Speed Switch.
SKIP?
The Low/High Speed switch is preset to 0, "high speed," as
shown in Figure 5-33. This setting is appropriate for most
applications. If you want to change this setting, continue with
step 12; otherwise skip to step 13.
a. Find the set of nine switches labeled "OPTION CARD". The switch
labeled "LOW" in this group is the Low/High Speed switch (see
Figure 5-33).
b. Set this switch as follows:
• To set this switch to low speed, set the "LOW" switch to 1, which is
opposite of that shown in Figure 5-33 .
• To set this switch to high speed, set the "LOW" switch to
0
as shown
in Figure 5-33.
13. Insert the Interface.
Re-insert the Human (System) Interface board into the slot you removed it
from and tighten the thumb screws to secure it.
14. Record the Select Codes.
5-92 Adding Interface Cards