Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Especificações descarregar pdf (Página 10)

Model PDP Series 200 maxDPU4E Hardware Guide

second and state changes are time stamped with 1 ms resolution and stored in

the DPU's 10,000-event buffer. Each input has a separately configurable

digital filter for contact debounce.

Distributed Processing Unit Specifications

Operating temperature range

0 to 60 degrees C

Storage temperature range

(-)25 to 70 degrees C

Relative humidity range

5 to 90% noncondensing

Power requirements

24 VDC ±4 VDC

Current:

1.2 A @ 24 VDC

Powering the DPU

The DPU operates from the main redundant 24 VDC power supply system in

the maxDNA system cabinets.

Onboard DC/DC regulators provide 5 V and 3.3 V power for the card.

Mounting the DPU

The DPU is mounted on the Input/Output (I/O) backpanel with maxPAC and

earlier Model 564 Input/Output modules.

Positioning the DPU

The DPU must be mounted in the right most position of the Model IOP rack

since the DPU is wider than the I/O cards and requires good airflow. In a six-

wide or 8-wide maxPAC I/O rack, the mounting bracket to the left of the

DPU must be removed since the DPU requires a DPU chassis to be mounted

in this slot location.

When using a second DPU for backup, it should be mounted vertically

beneath the primary DPU for ease of connection of the two-foot backup

cable.

When the DPU is installed in the right most slot of a six-wide backpanel, the

DPU cover extends over the connectors on the backpanel. The standard I/O

Backpanel daisy-chain cable (064353) must be used since it uses a low

profile connector that prevents any interference between the DPU cover and

the cable connector.

Any cables higher than 1 inch above the surface of the backpanel, and any

terminators, will interfere with the cover. Some older cables, in particular,

Metso Automation MAX Controls Inc. • 278590 •

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Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Especificações Página 10