Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Spécifications télécharger pdf (Page 24)

Model PDP Series 200 maxDPU4E Hardware Guide

Interpreting I/O LED Status during Normal DPU Operation

The four I/O LEDs display the status of each of the four I/O queues. In

general, the I/O cards of a given type are assigned to the labeled LEDs;

however, due to I/O bus transaction processing requirements, some of the I/O

modules of different types or different applications are assigned to different

queues. The following table shows the queue assignments for each type or

application of an I/O module.

I/O Card

LED

AO/DO

LED

Unlabeled LED

(Item Queue)

SOE DI X

Slow DI X

AI 564 X

TC 564 X

RTD 564 X

AO 564 X

Counter Timer 564 X

Quad PAT X X

Output Driver X

DO X

AI maxPAC X X

TC maxPAC X X

RTD maxPAC X X

AO maxPAC X X

Counter Timer maxPAC X X

IOM Error Codes

During on-line operation, the IOM monitors its health and displays an error

code if it detects a problem. The error code is shown by means of four

blinking I/O LEDs. Both the colors of the LEDs and the 4-bit binary number

that they display are used to represent the error number. Refer to the IOM

LED Error Code Table for specifics.

Use the following rules when interpreting the LEDs. An OFF LED is a

binary “0”. A flashing ON LED (regardless of color) is a binary “1”. The

top I/O LED (DI) is the least significant bit (LSB) of a 4-bit binary number.

The bottom I/O LED represents the most significant bit (MSB).

The error code will be flashed continuously. If the LEDs are ON but not

flashing, they do not indicate an error code. Rather, they indicate the status

of the I/O cards (refer to the previous section).

Metso Automation MAX Controls Inc. • 278590 •

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