HP 98568A Installation Instruction page 183

HP 98562-66530 Human (System) Interface Board
c. Place the card on a static-free surface.
d. Do not disconnect the option card or its cable.
2.
Set the
HP-IB
System Controller Switch.
SKIP?
Unless you intend to connect two computers together with this
interface, you can skip to step 3. The interface is configured to
be system controller and need not be changed.
a. Find the group of four switches labeled "HPIB/RS232". The switch
labeled "SC" in this group is the System Controller switch (see
Figure 5-33).
b. If connecting two computers together via HP-IB, only one of them may
be set to system controller. To change this interface to non-system
controller, move the System Controller switch to the 0 position (the
opposite of that shown in Figure 5-33).
Note:
If you will be connecting a disk drive, printer, plotter 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.
3. Set the RS-232C Disable Switch.
SKIP?
The interface is shipped from the factory with the RS-232C
Serial interface enabled (meaning you can use the interface).
If you intend to use this RS-232C interface, skip to step 4. If
you do not intend to use this RS-232C interface, and are using
another· interface at select code 9, continue with this step. Once
disabled, this interface will not be recognized by the boot ROM
and will not occupy select code 9.
a. Find the group of four switches labeled "HPIB /RS232". The switch
labeled "DIS" in this group is the RS-232C Disable switch (see
Figure 5-33).
b. To disable the RS-232C Serial interface, move the DIS switch to the 1
position (the opposite of that shown in Figure 5-33).
Adding Interface Cards 5-87