Avago Technologies MegaRAID SCSI 320-0 (520-0 CH) - Manual (Page 47)

MegaRAID 320 Storage Adapter Family 3-7
Copyright © 2003-2008 by LSI Corporation. All rights reserved.
Table 3.3 MegaRAID 320-2E Headers and Connectors
Connector Description Type Comments
J1 Write Pending Indicator
(Dirty Cache LED) 2-pin header Connector for enclosure LED to indicate when
data in the cache has yet to be written to the
device. Optional.
J2 On-board BIOS Enable 2-pin header No jumper installed enables the on-board BIOS.
This is the default.
Jumper pins 1–2 to disable the on-board BIOS.
J3 SCSI Drive Activity
Header 2-pin header When lit, indicates that the SCSI drive is active.
J4 I
2
C Header 3-pin header Reserved for LSI Logic internal use
J5 SCSI Termination
Enable Channel 0 3-pin header Jumper pins 1–2 to enable software control of
SCSI termination through drive detection. This
is the default.
Jumper pins 2–3 to disable on-board SCSI
termination.
No jumper installed enables on-board SCSI
termination.
J6 SCSI Termination
Enable Channel 1 3-pin header
J7 Serial Port (RS232) 3-pin header Connector is for diagnostic purposes.
Pin 1: RXD (Receive Data)
Pin 2: TXD (Transmit Data)
Pin 3: GND (Ground)
J9 Internal SCSI
Channel 0 connector 68-pin connector Internal high-density SCSI bus connector.
Connection is optional.
J10 Internal SCSI
Channel 1 connector 68-pin connector
J11 Mode Select 2-pin header Reserved for LSI Logic internal use
J12 External SCSI
Channel 0 connector 68-pin connector External very-high density SCSI bus connector.
Connection is optional.
J14 External SCSI
Channel 1 connector 68-pin connector
J15 Termination Power 2-pin connector –
J16 Termination Power 2-pin connector –
U8 DIMM Socket DIMM socket The MegaRAID 320-2E supports the following
sizes of SDRAM: 128, 256, and 512 Mbytes.