D-5
Appendix D: M35TQ Mobile Rack Specifications
D-8 Front Connectors and Pin Definitions
2. MG9072 Chip
The MG9072 is an enclosure management
chip that supports the SES-2 controller and
SES-2 protocols.
Mobile rack
Main Power
4-Pin Connector
Pin# Definition
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 definitions.
3. JTAG Connector
The JTAG connector, designated JP47, is used
for diagnostic purposes only.
4. and 5. I
2
C Connectors
The I
2
C connectors, designated JP44 and
JP45, are used to monitor the HDD activity
and status. See the table on the right for pin
definitions.
I
2
C Connector
Pin Definitions
Pin# Definition
1
Data
2
Ground
3
Clock
4
No Connection
