Hardware Installation and User’s Guide
17
Hardware Installation
J1
—
SCSI termination power:
If the SCSI port is used, at least one device has to 5
volts termination power to the SCSI bus.
J2
—
SCSI bus termination:
If the SCSI port is used, use this jumper to set termination.
J9
—
MIA voltage on HSSDC 2 (FC2):
If you are using a 5 volt MIA in the FC-AL port,
you must change the jumper to the 5 volt setting.
J10
—
MIA voltage on HSSDC 1 (FC1):
If you are using a 5 volt MIA in the FC-AL port,
you must change the jumper to the 5 volt setting.
2.2.3
SCSI Termination
Termination is critical when connecting SCSI devices together. Connected SCSI devices
are typically called a SCSI bus, and termination is required at the each end of the SCSI
bus. Use a high-quality terminator at the end of the SCSI cable after the last device in the
bus to ensure proper termination.
2.3
Fibre Channel Configuration
This section provides general instructions for connecting Fibre Channel (FC) enclosures
to an FC-enabled ICP RAID Controller.
Table 2-1. Jumper Descriptions
Jumper Block
Jumper Position
Definition
J1
Jumper ON
SCSI termination power provided by
controller.
Jumper OFF
SCSI termination power provided by cable.
J2
Jumper on pins [1-2]
SCSI bus termination AUTO.
Jumper on pins [2-3]
SCSI bus termination ON.
No jumpers
SCSI bus termination OFF.
J9
Jumper on pins [1-2]
MIA voltage on HSSDC port 2 (FC2) set to 3.3
volts.
Jumper on pins [2-3]
MIA voltage on HSSDC port 2 (FC2) set to 5
volts.
No jumpers
No MIA voltage supplied to HSSDC port 2
(FC2).
J10
Jumper on pins [1-2]
MIA voltage on HSSDC port 1 (FC1) set to 3.3
volts.
Jumper on pins [2-3]
MIA voltage on HSSDC port 1 (FC1) set to 5
volts.
No jumpers
No MIA voltage supplied to HSSDC port 1
(FC1).
