Supermicro CSE-846TQ-R900B [87/160] B 5 rear connector and pin definitions

Supermicro SC846E16-R1200B [87/160] B 5 rear connector and pin definitions
B-5
Appendix B: SAS-846TQ Backplane Specications
B-5 Rear Connector and Pin Denitions
1. MG9072 Chip
The MG9072 is an enclosure management
chip that supports the SES-2 controller and
SES-2 protocols.
2. Upgrade Connectors
The upgrade connectors are designated JP69,
JP78, and JP115 and are used for manufactur-
er's diagnostic purposes only.
3. Activity LED Header
The activity LED header, designated JP26,
JP47 and JP108, is used to indicate the activ-
ity status of each SAS drive. The Activity LED
Header is located on the front panel. For the
Activity LED Header to work properly, connect
using a 10-pin LED cable.
4. - 6. I
2
C Connectors
The I
2
C Connectors, designated JP37, JP95,
JP52, JP96, JP116, and JP117, are used to
monitor HDD activity and status. See the table
on the right for pin denitions.
I
2
C Connector
Pin Denitions
Pin# Denition
1 Data
2 Ground
3 Clock
4 No Connection

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