SmartSeis
TM
Maintenance Manual
15
2.3.1 OMNI board jumper settings
As previously mentioned, a jumper is a connector that, when placed over two jumper pins,
provides continuity. On the OMNI board, jumpers are used to set various functions on the
board. The OMNI board jumpers range from JP1 to JP13. Tables 3, 4, and 5 outline the
jumpers and IRQs (computer interrupt settings) associated with each function and the
appropriate settings. Table 6 outlines the setting for switch S1.
Table 3. Jumper numbers and corresponding IRQ numbers used by the seismograph trigger.
Jumper JP4 and IRQ 11 is the normal selection.
Jumper no.
IRQ no.
JP3
IRQ 10
JP4
IRQ 11
JP5
IRQ 12
JP6
IRQ 15
All of the acquisition boards in the system must be set to the same IRQ as the OMNI board.
This IRQ must not conflict with any other IRQ used by the system.
Table 4. Jumper numbers and corresponding IRQ numbers used by the seismograph keypad.
Jumper JP7 and IRQ 10 is the normal selection.
Jumper no.
IRQ no.
JP7
IRQ 10
JP8
IRQ 11
JP9
IRQ 12
JP10
IRQ 15
