Table of Contents
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SC836 Chassis Manual
Front Connector and Pin Definitions
1. Primary I
C Connector
2
The I
C connector is used to monitor the power
2
supply status and to control the fans. See the
table on the right for pin definitions.
2. Backplane Main Power Connectors
The 4-pin connectors, designated PWR1,
PWR2, PWR3 and PWR4, provide power
to the backplane. See the table on the right
for pin definitions.
3. and 4. Primary and Secondary Expander
Chips
These 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.
Pin#
1
2 and 3
4
C-20
I
C Connector
2
Pin Definitions
Pin#
Definition
1
Data
2
Ground
3
Clock
4
No Connection
Backplane
Main Power
4-Pin Connector
Definition
+12V
Ground
+5V
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