Avago Technologies MegaRAID SCSI 320-0 (520-0 CH) - Manual (Page 45)

MegaRAID 320 Storage Adapter Family 3-5
Copyright © 2003-2008 by LSI Corporation. All rights reserved.
Table 3.2 MegaRAID 320-2 Headers and Connectors
Connector Description Type Comments
J1 I
2
C Connector 4-pin connector Reserved for LSI Logic internal use
J2 SCSI Activity LED 4-pin header Connector for LED on enclosure to indicate
data transfers. Optional.
J3 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.
J4 SCSI Termination
Enable Channel 0 3-pin header Jumper on pins 1–2: Software uses drive
detection to control SCSI termination. (Refer to
J17 and J18.) This is the default.
Note: Leave J4 and J5 at the default setting to
allow the MegaRAID SCSI 320-2 to
automatically set its own SCSI
termination.
Jumper on pins 2–3: On-board SCSI
termination disabled.
No jumper: On-board SCSI termination enabled.
J5 SCSI Termination
Enable Channel 1 3-pin header
J6 DIMM socket DIMM socket The MegaRAID 320-2 supports the following
sizes of SDRAM: 128 and 256 Mbytes.
J7 Internal SCSI
Channel 0 Connector 68-pin connector
Internal high-density SCSI bus connector
J8 Internal SCSI
Channel 1 Connector 68-pin connector
J9 External SCSI
Channel 0 Connector 68-pin connector
External very high-density SCSI bus
connector.
J19 External SCSI
Channel 1 Connector 68-pin connector
J10 Battery Connector
1
3-pin header Connector for an optional battery pack
Pin-1 -BATT Terminal (black wire)
Pin-2 Thermistor (white wire)
Pin-3 +BATT Terminal (red wire)
J11 NVRAM Clear 2-pin connector Clears the contents of the nonvolatile random
access memory
J12 NMI 2-pin connector Nonmaskable interrupt
J13 32/64-bit secondary
PCI selection 3-pin connector Reserved for LSI Logic internal use
J14 Firmware Initialization
Mode 0 or 3 Select 2-pin connector Reserved for LSI Logic internal use
J15 Serial Debug Interface 3-pin connector Reserved for LSI Logic internal use
J16 On-board BIOS Enable 2-pin header No jumper: BIOS enabled (default)
Jumpered: BIOS disabled