skip header   hitachi.com   hitachi.us    Global
Hitachi Global Storage Technologies
 

Ultrastar 15K73
Jumper settings


Models (Ultra160, Ultra320)

Ultrastar 15K73 Ultra160 and Ultra320 models have one jumper block, C3, which is as shown below.  68-pin models also have an auxiliary connector, shown below as C4.

Note: Ultrastar 15K73 FC-AL models do not have jumper settings.

68-pin Wide LVD | 80-pin SCA-2 LVD | Jumpers | SCSI cable | Terminators

See the following topic for additional installation information:
Installation notes for LVD drives

68-pin Wide LVD


Note:
In most cases the jumpers will be set using the C3 "Option Jumper Connector." Either the option jumper connector (C3) or the 68-pin auxiliary connector can be used but do not use both.


80-pin SCA-2 LVD

80-Pin SCA-2 Drive


Jumpers

C3 Option Jumper Connector
C3 Option Jumper Connector

SCSI Bus Cable


SE mode:
The maximum cumulative cable length when using a single-ended transceiver should be 3 meters.  Implementations that limit the transfer rate to a maximum of 5 megabyte transfers per second may extend the cumulative cable length to 6 meters. (ANSI SCSI-3 X3T10/855D). 

The maximum cumulative signal path between terminators shall be 3.0 meters when using up to 4 maximum capacitance (25pF) devices. The maximum cumulative signal path length between terminators shall be 1.5 meters when using from five to eight maximum capacitance devices. (ANSI SCSI-3 FAST-20 X3T10/1071D).


LVD mode:
The maximum cumulative cable length when using an LVD transceiver must comply to the limit, which is defined by ANSI SCSI-3 X3T10/855D.
The maximum cumulative signal path between terminators shall be 12 meters when using up to 4 maximum capacitance (25pF) devices. 

The maximum cumulative signal path length between terminators shall be 12 meters when using from five to eight maximum capacitance devices. (ANSI SCSI-3 FAST-20 X3T10/1071D).


Terminators


Onboard SCSI active termination is not supported. The using system is responsible for making sure that all required signals are terminated at both ends of the bus cable.

Note: LVD versions cannot provide bus termination. However, 68 pin DPSS
versions can be jumpered to provide Terminator Power. 

The following are 68 pin model terminator examples:

Data Mate DM2750-01-LVD (LVD only)
Amphenol 497040001 (Multimode)







  Terms of Use | Privacy Policy | Contact Us  © 2008 Hitachi Global Storage Technologies