D-5
Appendix D: SATA-933 Backplane Specifications
D-5 Front Connector and Pin Definitions
1. - 2. OH Temperature Connector
OH#1: JP25 and OH#2: JP45
Open: 45 degrees Celcius
1-2: 50 degrees Celcius
2-3: 55 degrees Celcius
Backplane
Main Power
4-Pin Connector
(JP10, JP13,
JP46 and JP48)
Pin# Definition
1
+12V
2 and 3
Ground
4
+5V
3. Backplane Main Power Connectors
The 4-pin connectors designated JP10,
JP13, JP46 and JP48 provide power to the
backplane. See the table on the right for pin
definitions.
4. Fan Connectors
The 3-pin connectors, designated JP54, JP56,
JP58 and JP60, provide power to the fans. See
the table on the right for pin definitions.
Fan Connectors
(JP54, JP56, JP58 and
JP60)
Pin# Definition
1
Ground
2
+12V
3
Tachometer
SAS Activity LED Header
Pin Definitions (JP26 and JP47)
Pin # Definition
Pin # Definition
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
5. Activity LED Connector
The activity LED connectors, designated JP26
and JP47 are used to indicate the activity
status of each SAS drive. The Activity LED
Connector is located on the front panel. For the
Activity LED Header to work properly, connect
to it using a 10-pin LED cable.
6. - 20. SATA Ports
The SAS ports are used to connect the SAS
drive cables. The eight ports are designated
#0 - #14. Each port is also compatible with
SATA drives.