Avago Technologies MegaRAID SCSI 320-0 (520-0 CH) - Manual (Page 51)

MegaRAID 320 Storage Adapter Family 3-11
Copyright © 2003-2008 by LSI Corporation. All rights reserved.
J5 External SCSI
Channel 0/1 connectors
(side-by-side) 68-pin
connector
External very high-density SCSI bus connectors
J21 External SCSI
Channel 2/3 connectors
(side-by-side) 68-pin
connector
J6 Termination Enable
Channel 1 3-pin
header Jumper on pins 1-2: Software uses drive detection to
control SCSI termination (default: do not change).
Jumper on pins 2-3: On-board SCSI termination
disabled.
No jumper: On-board SCSI termination enabled.
J8 Termination Enable
Channel 2 3-pin
header
J10 Termination Enable
Channel 3 3-pin
header
J13 Termination Enable
Channel 0 3-pin
header
J7 Termination Power
Enable Channel 1 2-pin
header
Jumper installed enables TermPWR from the SCSI
bus to the appropriate SCSI channel.
J9 Termination Power
Enable Channel 2 2-pin
header
J11 Termination Power
Enable Channel 3 2-pin
header
J14 Termination Power
Enable Channel 0 2-pin
header
J12 I
2
C Connector 4-pin
connector Reserved for LSI Logic internal use
J15 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)
J16 EEPROM Access
Connector 2-pin
header Reserved for LSI Logic internal use
J17 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.
J19 Serial Interface for
Code Debugging 3-pin
header Reserved for LSI Logic internal use
J20 NVRAM Clear 2-pin
connector Used to clear the contents of the nonvolatile random
access memory
J23 80321 Initialization
Mode Select 2-pin
connector Reserved for LSI Logic internal use
J24 On-Board BIOS Enable 2-pin
header
When open, optional system BIOS is enabled; when
closed, it is disabled. Status of this jumper can be
read through bit 0 at local CPU address 0x9F84.0000.
1. The battery connector is not shipped connected. It is recommended that you connect the cable on
the battery pack to J15 before you install the card.
Table 3.5 MegaRAID 320-4X Headers and Connectors (Cont.)
Connector Description Type Comments