Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Spezifikationen PDF herunterladen (Seite 13)

Introduction

DPU Front Panel

The DPU Front Panel, which attaches to the DPU chassis, contains 13 LEDs

and pushbuttons for Reset and Takeover.

The meaning of the LEDs can change depending upon the operational mode

of the DPU. The list below represents their function during normal operation.

Network Status LEDs

These LEDs report the status of maxNET Network A and B links, and the

DPU backup link.

Serial Port LEDs

These LEDs report the status of the two serial ports.

IOM Status LEDs

These LEDs report the status of the various I/O modules connected to the

DPU. These include digital input module status, analog and digital output

module status, and analog input status for various analog modules. The

bottom LED is reserved for future use.

Hardware Status LEDs

LEDs report the health status of the Control Processor and IOM processor

along with the battery status, indicating battery test in progress and battery

pass/fail condition.

DPU State LED

An LED reports the state of the DPU itself. Green indicates the DPU is active

in the Lock or Run state. Yellow indicates the DPU is inactive and red LED

indicates the DPU is Active but is in the offline mode.

In some modes, the LEDs will blink. See Chapter 4 for more information on

all of the LEDs.

Reset Button

Pressing this button will cause the DPU to stop controlling and go through a

reset cycle. This should not be done casually as it can cause a severe

disruption to your process.

Refer to Chapter 3 for more detailed information on the use of this button.

Takeover Button

Metso Automation MAX Controls Inc. • 278590 •

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Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Spezifikationen Seite 13