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DSP2022-S SCSI Disk Drive Installation Guide

9

Provide SCSI Bus Termination

The SCSI bus only needs termination resistors at the
beginning and end of the bus. Since this drive does not
have a SCSI bus terminating resistor on it, bus terminating
resistors must be located external to the drive. The drive
does provide power for an external terminating resistor over
SCSI connector pin 24. Leave jumper 7 in place to enable
the drive terminator power supply. Remove jumper 7 if you
don’t need SCSI bus termination.

Obtain a Mounting Kit

Due to the large number of possible installation cabinets
and slot sizes, your drive does not come with an installation
kit of brackets, screws, and cables. You must obtain the
parts needed for your particular installation from your
distributor or purchasing source.

Locate the Drive Mounting Holes

Two holes are provided on each side of the drive for side
mounting. Four mounting holes are provided on the bottom
surface for bottom mounting. These mounting holes are
shown in Figures 3 and 4.

Figure 3

Side Mounting Holes

M3 x 0.5

BOTH SIDES

.740 in

18.80 mm

.244 in

6.20 mm

1.500 in

38.10 mm

1.375 in

34.93 mm

CXO-3496A-MC_R

MOUNTING HOLE (2)

Summary of Contents for DSP2022-S

Page 1: ...DSP2022 S SCSIDiskDrive InstallationGuide EK 2022S IG 001 Digital Equipment Corporation...

Page 2: ...otice and should not be construed as a commitment by Digital Equipment Corporation Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document Copyright 199...

Page 3: ...eld 3 Note the Use of the SCSI Pin Functions 3 Locate Jumper Connector J1 5 Learn the Jumper Functions 6 Set the SCSI Device Address 7 Set the SCSI Address Remotely 8 Provide SCSI Bus Termination 9 Ob...

Page 4: ...mper Connector J1 5 3 Side Mounting Holes 9 4 Bottom Mounting Holes 10 Tables 1 Vendor Specific Pin Options 3 2 SCSI Pin Functions 4 3 Jumper Descriptions 6 4 Set SCSI Device Address 7 5 Remote SCSI A...

Page 5: ...drive are found on the last page Before You Begin Before removing the drive from its antistatic bag or attempting installation please read the following cautions ANTISTATIC CAUTION As with any integr...

Page 6: ...he pins of the SCSI connector are divided into two pin fields one for the SCSI interface signals and the other for the vendor specific options Learn the use of these two pin fields in the following se...

Page 7: ...eserved for manufacturing Leave open A2 Test UART transmit data Leave open A3 12 V for controller ROM Leave open A4 Test UART receive data Leave open A5 SCSI ID bit 0 See Table 5 A6 SCSI ID bit 1 See...

Page 8: ...ound 05 Ground 06 DB0 07 Ground 08 DB1 09 Ground 10 DB2 11 Ground 12 DB3 13 Ground 14 DB4 15 Ground 16 DB5 17 Key no pin 18 DB6 19 Ground 20 DB7 21 Ground 22 DBP 23 Ground 24 TERMPWR 25 ATTN 26 BSY 27...

Page 9: ...mper connector J1 on the electronic component side of the drive shown in Figure 2 Note that connector J1 contains eight jumper pairs numbered 0 through 7 Your drive comes with all jumpers in place Fig...

Page 10: ...ction Jumper Status 0 Device Address bit 0 See Table 4 1 Device Address bit 1 See Table 4 2 Device Address bit 2 See Table 4 3 Enables automatic spin up when power is applied IN Disables automatic spi...

Page 11: ...shows the jumper IN or OUT status for setting the SCSI device address IN means jumpers are in place and OUT means jumper are removed Save unused jumpers Table 4 Set SCSI Device Address Jumper 2 Jumpe...

Page 12: ...the vendor specific connector at the rear of the drive If there is not an active ID address on pins A5 A7 the drive will assume the ID is 0 Refer to Table 5 for the pin electrical states Table 5 Remot...

Page 13: ...need SCSI bus termination Obtain a Mounting Kit Due to the large number of possible installation cabinets and slot sizes your drive does not come with an installation kit of brackets screws and cables...

Page 14: ...022 S SCSI Disk Drive Installation Guide Figure 4 Bottom Mounting Holes 1 500 in 38 10 mm 2 420 in 61 47 mm 165 in 4 19 mm 4 000 in 101 60 mm M3 x 0 05 1 375 in 34 93 mm CXO 3495A MC_R MOUNTING HOLE S...

Page 15: ...y orientation Mounting screws should not penetrate the mounting holes beyond the depths given in this list Mounting screws are M3 X 0 5 metric screws 3mm diameter and 0 5 thread pitch The recommended...

Page 16: ...000 000 bytes Average Seek Time Less than 10 milliseconds Typical spin up time Less than 12 5 seconds Disk rotation speed 5400 RPM Bytes per block 512 Height 0 75 in 19 0 mm Length 4 0 in 101 6 mm Wid...

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