C-4
SC847 Chassis Manual
C-6 Front Connector and Pin Definitions
#2. MG9071 and MG9072 Chips
The MG9071 and MG9072 are enclosure
management chips that support the SES-2
controller and SES-2 protocols.
SAS Activity LED Header
Pin Definitions
Pin # Definition
Pin # Definition
1
ACT IN#0
6
ACT IN#4
2
ACT IN#1
7
ACT IN#5
3
ACT IN#2
8
ACT IN#6
4
ACT IN#3
9
ACT IN#7
5
Ground
10
Empty
#1. Activity LED Headers
The activity LED headers, designated JP26
and JP47, are used to indicate the activity
status of each SAS drive. The activity LED
headers are located on the front panel. For the
activity lead headers to work properly, connect
to them using a 10-pin LED cable. This is only
used when the activity LED is not supported
by the hard drive.
SAS Activity LED Header
Pin Definitions
Pin # Definition
Pin # Definition
1
ACT IN#8
6
ACT IN#12
2
ACT IN#9
7
ACT IN#13
3
ACT IN#10
8
ACT IN#14
4
ACT IN#11
9
ACT IN#15
5
Ground
10
Empty
#3., #4., #5. I
2
C Connectors
The I
2
C connectors, designated JP37, JP52,
and JP95, are used to communicate to HDD
to support SES-2 protocol. 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
Summary of Contents for SC847A-R1400LPB
Page 8: ...SC847 Chassis Manual viii Notes...
Page 34: ...SC847 Chassis Manual 4 14 Figure 4 15 Placing the System Fan...
Page 36: ...SC847 Chassis Manual 4 16 Notes...
Page 52: ...SC847 Chassis Manual B 2 Notes...
Page 62: ...C 10 SC847 Chassis Manual Notes...
Page 72: ...D 10 SC847 Chassis Manual Notes...
Page 94: ...E 22 SC847 Chassis Manual Notes...
Page 119: ...F 25 Appendix F SAS 846EL Backplane Specifieations Notes...