IBM RT PC Options Installation page 143

TNL SN20-9864 (May 1987) to 75X0217
The jumpers on this adapter can be set to either interrupt level 3 or 9. If
you have the IBM PC Enhanced Graphics Adapter or the IBM Personal
Computer 3278/79 Emulation Adapter, ensure that the interrupt level on
the mM PC Network Adapter is set to 3, since these other two adapters use
9. To set the interrupt level to 3, set jumper W4 as shown. To set the
interrupt level to 9, set the same jumper (called W3 when set at 9) as shown
in the illustration below.
Note: See Installing and Customizing the AIX Operating System for
additional information about interrupt conflicts. Also see "Adapter
Conflicts" on page 1-19.
W3 and W4
~
W41nterrupt Level 3
~
W3 Interrupt Level 9
~
[mtalling: You can install this adapter in slots 2 through 8 in IBM 6150 and
in slots 1 through 5 in IBM 6151, whichever is available. See the system
unit diagram for the correct adapter slot.
In mM 6151, you can more easily connect cables if you install the adapter
in a slot other than adapter slot 1.
6-10
Options Installation