
C-4
SAS2-846EL Backplane User's Guide
1. Primary I
2
C Connector
The I
2
C connector is used to monitor the power
supply status and to control the fans. See the
table on the right for pin denitions.
I
2
C Connector
PinDenitions
Pin# Denition
1 Data
2 Ground
3 Clock
4 No Connection
C-6 FrontConnectorandPinDenitions
Backplane
Main Power
4-Pin Connector
Pin# Denition
1 +12V
2 and 3 Ground
4 +5V
2. Backplane Main Power Connectors
The 4-pin connectors, designated PWR1,
PWR2, PWR3, PWR4, PWR5, and PWR6,
provide power to the backplane. See the
table on the right for pin denitions.
3. and 4. Primary and Secondary Expander
Chips
This primary and secondary expander chips
allow the backplane to support dual ports,
cascading, and failover.
5. EPP Ports
The EPP ports are used for manufacturer
diagnostic purposes only.
Kommentare zu diesen Handbüchern