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Setting the Interrupt Level: Switches 1 through 3 (L1, L2, and L4) select the interrupt level used
by the adapter when it is installed in an ISA expansion slot. For information on selecting the interrupt
level, see “Selecting an Interrupt Level” on page A-4.
If you install more than one IBM ARTIC adapter in ISA slots, set them to the same interrupt level (the IBM
ARTIC adapters are designed to share the interrupt level with other IBM ARTIC adapters).
Figure 2-5. Interrupt Level Switches
Switches
Interrupt
Level3 (L4) 2 (L2) 1 (L1)
On On On 3
On On Off 4
On Off On 7
On Off Off 9 (or 2)
Off On On 10 (default)
Off On Off 11
Off Off On 12
Off Off Off 15
2-8 IBM ARTIC186 8-Port Adapter GTO