Advantech AIIS-3400, Руководство пользователя

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5 AIIS-3400/3410 User Manual
Chapter 1
G
eneral
Introduction
1.4 Jumper Settings
1.4.1 How to Set Jumpers
You can configure your motherboard to match the needs of your application by set-
ting the jumpers. A jumper is a metal bridge that closes an electrical circuit. It consists
of two metal pins and a small metal clip (often protected by a plastic cover) that slides
over the pins to connect them. To “close” (or turn ON) a jumper, you connect the pins
with the clip. To “open” (or turn OFF) a jumper, you remove the clip. Sometimes a
jumper consists of a set of three pins, labeled 1, 2 and 3. In this case you connect
either pins 1 and 2, or 2 and 3. A pair of needle-nose pliers may be useful when set-
ting jumpers.
1.4.2 BIOS CMOS (JCMOS1)
AIIS-3400/3410 CPU card contains a jumper that can erase BIOS CMOS data and
reset the system BIOS information. Normally this jumper should be set with pins 1-2
closed. If you want to reset those data, set JCMOS1 to 2-3 closed for just a few sec-
onds, and then move the jumper back to 1-2 closed. This procedure will reset the
CMOS to its last status or default setting.
1.4.3 Hardware Monitor Alarm (JOBS1) and Watchdog Timer Output
(JWDT1)
AIIS-3400/3410 contains a watchdog timer that will reset the CPU in the event the
CPU stops processing. This feature means AIIS-3400/3410 will recover from a soft-
ware failure or an EMI problem. The JWDT1 jumper settings control the outcome of
what the computer will do in the event the watchdog timer is tripped.
AIIS-3400/3410 also provides jumper: JOBS1 to enable or disable hardware monitor
function.
Table 1.1: Clear BIOS CMOS (JCMOS1)
Function Jumper Setting
Clear BIOS CMOS data
*default setting
1
2-3 closed
Table 1.2: H/W Monitor Alarm and Watchdog Timer (JOBS1+JWDT1)
Function Jumper Setting
*Watch dog timer reset
*Enable H/W monitor alarm
*default setting
1