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Chapter 2: Hardware information
3. Floppy disk drive connector (34-1 pin FLOPPY)
This connector supports the provided floppy drive ribbon cable. After
connecting one end to the motherboard, connect the other end to the
floppy drive. (Pin 5 is removed to prevent incorrect insertion when
using ribbon cables with pin 5 plug).
4. Chassis open alarm lead (4-1 pin CHASSIS)
This lead is for a chassis designed with intrusion detection feature.
This requires an external detection mechanism such as a chassis
intrusion sensor or microswitch. When you remove any chassis
component, the sensor triggers and sends a high-level signal to this
lead to record a chassis intrusion event.
If you do not wish to use the chassis intrusion lead, place a jumper cap
over the pins labeled “Chassis Signal” and “Ground” to close the
circuit.
P4B266-E
®
NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1.
P4B266-E Floppy Disk Drive Connector
PIN 1
FLOPPY
P4B266-E
®
P4B266-E Chassis Alarm Lead
CHASSIS
+5VSB_MB
Chassis Signal
GND
Содержание P4B266-E
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Страница 129: ...Glossary This part lists the technical terms that you may encounter when reading this document ...
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Страница 137: ...Index This part contains an alphabetical list of the topics found in this document ...
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