PCI Backplane and Enclosure

The switches, indicators, and test points for the PCI backplane are listed in Table D-1, Table D-2 on page D-8, and Table D-3 on page D-8.

 

 

Table D-1 LED indicators

 

 

 

LED

Signal

Description

 

 

 

1

MAN1nMAN2

This LED illuminates to indicate Man2 clock selection

 

 

 

2

MANnAUTO

This LED illuminates to indicate Auto clock selection

 

 

 

5

CLK33ACTIVE

This LED illuminates to indicate 33MHz bus speed.

 

 

 

6

CLK66ACTIVE

This LED illuminates to indicate 66MHz bus speed.

 

 

 

7

CLK133ACTIVE

This LED is used for manufacturing tests.

 

 

 

9

PSON

Power supply on/off indicator. The LED is illuminated

 

 

when the unit is off (standby).

 

 

 

10

3V3

Power supply voltage present

 

 

 

11

5V

Power supply voltage present

 

 

 

12

12V

Power supply voltage present

 

 

 

13

–12V

Power supply voltage present

 

 

 

14

PCI_nPRSNT1A and

This LED illuminates to indicate PCI card present and

 

PCI_nPRSNT2A

enabled in slot A.

 

 

 

15

PCI_nPRSNT1B and

This LED illuminates to indicate PCI card present and

 

PCI_nPRSNT2B

enabled in slot B.

 

 

 

16

PCI_nPRSNT1C and

This LED illuminates to indicate PCI card present and

 

PCI_nPRSNT2C

enabled in slot C. (This is the slot for the PB926EJ-S.)

 

 

 

ARM DUI 0224I

Copyright © 2003-2010 ARM Limited. All rights reserved.

D-7

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ARM ARM DUI 0224I manual Table D-1 LED indicators, CLK33ACTIVE, CLK66ACTIVE, CLK133ACTIVE, Pson