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Rear Panel and Connectors 101
Rear Panel and Connectors
Connectors
SCSI Connector
Ultrium drives are Ultra3 wide, SCAM-1 compliant SCSI devices designed to
operate on a low voltage differential (LVD) SCSI bus. They use a 68-pin SCSI
Ultra3 LVD interface to communicate with a tape library or host computer
system.
The SCSI connection is a straddle-mounted three-part SCSI peripheral
connector. This incorporates a 68-pin high density SCSI connector, a 4-pin
power connector and a 12-pin auxiliary connector. The stub length (SCSI IC
to connector) is 22 mm average.
In a library, the SCSI and power connectors interface with appropriate cables
connected to the library bulkhead. The SCSI cables may be installed in a
daisy-chain configuration linking two or more Ultrium tape drives within the
library together on the same SCSI bus.
The auxiliary connector is used for setting the SCSI address.
Tape library suppliers set the SCSI jumpers to 3 before a tape drive is
installed. This will be overridden by the tape library. Each device on the SCSI
bus must have a unique SCSI ID set by the library.
Automation Control Interface (ACI) Connector
The automation connector is a 9-pin JST PH surface-mount right-angle
connector (JST P/N S 9B-PH-SM3-TB). This is mounted alongside the SCSI
connector. It can be mated with either crimped or insulation displacement
connectors, as follows:
Crimped Connectors
See http://www.jst-mfg.com/ProductGuideE/EPH.html for full details.
Insulation Displacement Connectors
3
09KR-8M for AWG# 28 wire
housing: PHR-9
contacts: SPH-002T-P0.5S (for AWG# 30-24 wire)
SPH-004T-P0.5S (for AWG# 32-28 wire)