StorCase Technology DX100-SNC User Manual

SINGLE-CONNECT ADAPTER BOARD

This document provides detailed information to support Kingston's Single-Connect Adapter Board (Part #s: DX100­SNC and DX100-SWC). This adapter allows the connection between either a standard 50-pin 8-bit SCSI or a 68-pin
Wide 16-bit SCSI cable connector, and a storage device which has a Single-Connect (80-pin) type interface connec­tor. The DX100-SWC also supports Ultra 2 SCSI (Low Voltage Differential (LVD) and Single-Ended) interfaces.

The Single-Connect Adapter Board provides a standard 4-pin Molex Power connector, and several jumper options as
described below. For information regarding jumper setting requirements for the specific storage device, please refer
to the device manufacturer's documentation.

Figure 1- Single-Connect Configuration (8-bit version shown)

Figure 2 - Single-Connect Adapter Board

(16-bit shown; 8-bit connector is Male)

Jumpers on the Single-Connect Adapter Board are factory-installed on the Enable Termination Power (TPR) pins, and
on all of the SCSI ID Select (ID0-ID3) pins. These jumpers may be reconfigured as required. Refer to the following
information for pin descriptions.

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D89-0000-0069 - Rev. A00 Kingston Technology Company

2 Single-Connect Adapter Board

Table 1: Motor Start Controls

OPEN OPEN Motor spins up at DC power on.
OPEN GND Motor spins up only when SCSI "start" command is received.
GND OPEN Motor spins up after delay of (12* seconds) x (the numeric
value of SCSI target ID of the drive) from DC power on.
GND GND Reserved. Drives not implementing this option will spin up
when SCSI "start" command received.

the 12-volt or 5-volt source (or both) during spin up. The delay should never exceed 12 seconds.

DLY REM Motor Spin Function

*This value may be reduced by the drive manufacturer to reflect the worst case time duration of peak current drains at

Activity LED Out Signal

The Activity LED Out Signal, provided by the drive, is intended to support a drive activity LED. This signal is de­signed to pull down the cathode of the activity LED indicator during periods while the drive is forming SCSI opera­tions.

Spindle SYNC

The Spindle SYNC signal is provided for spindle synchronization between multiple drives. Synchronized drives
should be of the same or equivalent model types. (Synchronization protocol and the electronic requirements for the
SYNC signal are defined within the drive specifications. Spindle synchronization is managed by the SCSI command
set.)

The Single-Connect Adapter Board provides 2 sets of Spindle SYNC pins. To implement this option, a jumper wire
must be run from the SYNC pin on the Adapter Board to a SYNC pin on another drive or Adapter Board. This signal
may be jumpered in a daisy chain configuration for up to 7 drives (8-bit), or 15 drives (16-bit).

SCSI ID Select

Each device on the SCSI bus must have a unique SCSI ID number. The SCSI ID Select pins allow the selection of
an appropriate SCSI ID (0-7 for 8-bit connections; 0-15 for 16-bit connections). On the 8-bit version of the Adapter
Board (DX100-SNC), the last set of option pins (ID3) are not used.

SCSI Jumper Positions

ID3 ID2 ID1 ID0

X SCSI ID = 2

X X SCSI ID = 3
X SCSI ID = 4
X X SCSI ID = 5
X X SCSI ID = 6
X X X SCSI ID = 7

X SCSI ID = 8
X X SCSI ID = 9
X X SCSI ID = 10
X X X SCSI ID = 11
X X SCSI ID = 12
X X X SCSI ID = 13
X X X SCSI ID = 14
X X X X SCSI ID = 15

X = Jumper Installed

SCSI ID = 0

X SCSI ID = 1

Table 2: SCSI ID Selection

Kingston Technology Company D89-0000-0069 - Rev. A00