Datasheet

ManualsBrandsSupermicro Manualschassis componentsCSE-SAS-823TQ

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2-2

SAS 823TQ Backplane User’s Guide

#4/#5. I

2

C Connectors

The I

2

C Connectors, designated JP44 and

JP45, are used to monitor HDD activity and

status. See the table on the right for pin

deﬁ nitions.

I

2

C Connector

Pin Deﬁ nitions (JP44

and JP45)

Pin# Deﬁ nition

1 Data

2 Ground

3 Clock

4 No Connection

SATA Activity LED Header

Pin Deﬁ nitions (JP26)

Pin # Deﬁ nition Pin # Deﬁ nition

1 ACT IN#0 6 ACT IN#4

2 ACT IN#1 7 ACT IN#5

3 ACT IN#2 8 ACT IN#6

4 ACT IN#3 9 ACT IN#7

5 Ground 10 Empty

Backplane

Main Power

4-Pin Connector

(JP10 and JP13)

Pin# Deﬁ nition

1 +12V

2 and 3 Ground

4 +5V

2-2 Front Connector and Pin Deﬁ nitions

#1/#2. Backplane Main Power Connectors

The 4-pin connectors, designated JP10 and

JP13, provide power to the backplane. See

the table on the right for pin deﬁ nitions.

#3. Activity LED Header

The activity LED header, designated JP26,

is used to indicate the activity status of

each SATA drive. The Activity LED Header

is located on the rear of the backplane. For

the Activity LED Header to work properly,

connect using a 10-pin LED cable.