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3-2
Figure 3.1
Card Layout for the ServeRAID-MR10M RAID Controller
J13 J7
J2
J6
85021-00
Table 3.1
ServeRAID-MR10R SAS/SATA Controller – Connectors
Connector Description
J1
Battery Backup
connector
J2
Universal
Asynchronous
Receiver/Transmitter
debugging
J5
BIOS Disable
J6
Board Default
Debug
J7
Cache Write Pend-
ing LED
J13
Global Drive Activity
header
ServeRAID-MR10M SAS/SATA Controller Characteristics
J21
J5
J23
J20
Type
20-pin
connector
4-pin
connector
2-pin
connector
2-pin
connector
2-pin
connector
2-pin
connector
Comments
Provides the interface to the bat-
tery backup unit. The iBBU
connects directly to the ServeRAID-
MR10M controller.
®
Reserved for IBM
use.
Note: This connector uses 3.3V
LVTTL levels and will be
damaged if connected to
standard transceiver levels.
Reserved for IBM use.
Reserved for IBM use.
The connector for the enclosure
LED. It provides a signal that indi-
cates when the on-board cache
contains data and a write from the
cache to the drives is pend-ing.
Optional.
Indicates activity on the drives.
Operates at approximately 10mA at
3.3V.
J1
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