M35S and M35T1 Mobile Rack User's Guide
3-6
3-5 SCA-M942 Front Connectors and Pin Defi nitions
3. SCSI Connector
The 68-pin SCSI connector allows a SCSI
cable to be connected to the backplane.
2. QLogic GEM 318 Chip
The QLogic Gem 318 chip is an enclosure
management chip that supports the SES-2
controller and SES-2 protocols.
Mobile rack
Main Power
4-Pin Connector
Pin# Defi nition
1
+12V
2 and 3
Ground
4
+5V
1. Mobile Rack Main Power Connectors
The 4-pin power connectors, designated JP10
and JP13, provide power to the mobile rack.
See the table on the right for pin defi nitions.
4. Fan Connector
The 3-pin fan connector provides power to
the mobile rack fan. See the table on the
right for pin defi nitions.
Fan Connectors
Pin# Defi nition
1
Ground
2
+12V
3
Tachometer
