J14 Serial Port

J14 attaches to a serial cable. Figure 10-2 and Table 10-4 show the pinout for J14.

F i g u r e 1 0 - 2 . J 1 4 S e r i a l Por t

D i a g r a m

 

 

2

4

6

8

 

 

 

 

 

 

 

 

 

 

 

 

 

1

3

5

7

9

 

 

Ta b l e 1 0 - 4 . J 1 4 S er i al Po r t P i n o u t

 

 

 

 

 

 

 

 

 

 

Pin

Description

 

 

Pin

 

Description

 

 

 

 

 

 

 

 

 

1

Carrier detect

 

 

2

 

Data set ready

 

 

 

 

 

 

 

 

 

3

Receive data

 

 

4

 

Request to send

 

 

 

 

 

 

 

 

 

5

Transmit data

 

 

6

 

Clear to send

 

 

 

 

 

 

 

 

 

7

Data terminal ready

 

 

8

 

Ring indicator

 

 

 

 

 

 

 

 

 

9

Ground

 

 

10

 

CUT

 

 

 

 

 

 

 

 

 

J17 Dirty Cache LED

J17 is a two-pin connector for an LED mounted on the computer enclosure. The LED indicates when the data in the cache has yet to be written to the storage devices. Table 10-5 displays the pinout for J17.

Ta b l e 1 0 - 5 . J 1 7 D i r t y C ac h e L E D P i n o u t

Pin Description

1Signal pulled high

2Dirty cache signal

J19 Onboard BIOS Enable

J19 is a 2-pin connector which enables or disables PERC 3/QC onboard BIOS. The onboard BIOS should be enabled (J19 unjumpered) for normal board position. Unjumpered is the default. Table 10-6 displays the J19 settings.

PERC 3/QC Hardware Installation

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Image 141
Dell 3 manual J14 Serial Port, J17 Dirty Cache LED, J19 Onboard Bios Enable