HP 98568A Installation Instruction page 186

HP 98562-66530 Human (System) Interface Board
Table 5-20.
Interrupt
Level LEV INT
3 0 0
4
0 1
5 1 0
6
1 1
8. Set the Local/Remote Switch.
SKIP IT!
The interface is shipped from the factory with the remote/local
switch set to local mode (0). We recommend that you leave
this setting alone.
9. Set the Optional Interface Select Code.
Note
Both the Optional interface and the HP 98625A/B interfaces
are preset to select code 14. If you have both the Optional and
HP 98625A/B interfaces, change the select code of one of them
to an unused value.
a. Find the group of nine switches labeled "OPTION CARD". The five
switches labeled "M" (for Most-significant bit) and "SELECT CODE"
in this group are the Select Code switches (see Figure 5-33).
b. Set the Select Code switches to one of the four select codes given in
Figure 5-35, unless you have used them elsewhere.
5-90 Adding Interface Cards