Advantech CompactPCI MIC-3021/8, Руководство пользователя

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8 MIC-3021/8 User's Manual
1.1 Introduction
The MIC-3021/8 is an 8-slot 6U/7U-sized CompactPCI enclosure for
rack or panel mounting. It has eight 6U card slots, and has a device
bay which can accommodate devices and peripherals such as floppy
disk drives and hard disk drives. Its rugged construction and flexible
modular design allows users to configure it to meet the requirements
of individual applications.
The MIC-3021/8 comes in two versions: 6U high without a fan tray or
7U high with a fan tray. The 1U high fan module provides forced air
cooling in the system. Two 88-CFM high-speed fans are mounted in a
hot-swappable tray directly underneath the card slots. The fan's
tachometer output enables the alarm module to monitor the speed of
the fans. Tachometer signals are transmitted to the system through a
6-pin connector on the fan backplane. A protective circuit has been
designed into the fan backplane to reduce electrical spikes and noise
while hot swapping. This design allows users to replace fans safely
without turning the system off. The 7U high design also provides an
additional space beneath the device bay to install a 5.25" device.
The device bay itself accommodates up to five 5.25" or 3.5" devices, or
three devices when an ATX power supply unit is installed. It accepts
standard HDDs and FDDs; there is no need for expensive special
devices. Devices can be removed through the device bay front without
the need for disassembling the enclosure, providing the shortest
MTTR for device replacement. A lockable door prevents unauthorized
access to the devices and to the power on/off switch.