DSP2022-S SCSI Disk Drive Installation Guide EK-2022S-IG-001 Digital Equipment Corporation ------------------------------------------------------------ June, 1992 The information in this document is subject to change without notice 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 © 1992 Digital Equipment Corporation All Rights Reserved. Printed in the U.S.A. ------------------------------------------------------------ Contents ------------------------------------------------------------ Scope of Information . . . . . . . . . . . . 1 Before You Begin . . . . . . . . . . . . . . 1 Locate the SCSI Connector . . . . . . . 2 Note Pin Status of the Vendor-Specific Field . . . . . . . . . . . . . . . . . . . . . . 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 Obtain a Mounting Kit . . . . . . . . . . . 9 Locate the Drive Mounting Holes . . . . 9 Use the Drive Mounting Guidelines . . 11 Drive Specifications . . . . . . . . . . . . 12 iii iv Contents Figures 1 SCSI Connector . . . . . . . . . . . . . . . 2 2 Location of Jumper 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 Address Determination . 8 6 Drive Specification Summary . . . . . . 12 DSP2022-S SCSI Disk Drive Installation Guide 1 Scope of Information This guide supplies information needed to configure and install your Model DSP2022-S 2.5-inch Small Computer System Interface (SCSI) disk drive. The tasks you need to perform are listed in order in the table of contents. The specifications for the disk 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 integrated circuit device, we highly recommend that you use a properly grounded wrist strap and antistatic pad when removing the disk drive from its antistatic bag and handling it outside the bag. HANDLING CAUTION As with any delicate instrument, prevent shocks by always placing it down gently. Avoid quick motions or bumping. 2 DSP2022-S SCSI Disk Drive Installation Guide Locate the SCSI Connector Locate the SCSI 50-pin connector shown at the rear of the drive in Figure 1 . This connector is used for cable installation later. Note that the 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 sections. Figure 1 SCSI Connector DSP2022-S SCSI Disk Drive Installation Guide 3 Note Pin Status of the Vendor-Specific Field The vendor-specific pin field consists of pins A1-A8. These pins are used for testing at the factory, setting the SCSI ID address remotely, and supply power to an external drive activity light emitting diode (LED). The recommended pin status is given in Table 1. Table 1 Vendor-Specific Pin Options ------------------------------------------------------------ Pin Function Status ------------------------------------------------------------ A1 Reserved 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 Table 5 A7 SCSI ID bit 2 See Table 5 A8 Drives external activity LED. LED on indicates the drive is processing commands from the host. Active low, 24 mA ------------------------------------------------------------ Note the Use of the SCSI Pin Functions The 40 SCSI pins carry the SCSI signals, power, and ground paths for the drive circuitry. Table 2 provides a list of the pin functions. For a full explanation of the SCSI pin functions, refer to the ANSI SCSI-2 Specification. 4 DSP2022-S SCSI Disk Drive Installation Guide Table 2 SCSI Pin Functions ------------------------------------------------------------ Pin Function Pin Function ------------------------------------------------------------ 01 +5V 02 +5V 03 Ground 04 Ground 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 Ground 28 -ACK 29 -RST 30 -MSG 31 Ground 32 -SEL 33 -I/O 34 -C/D 35 Ground 36 -REQ 37 GND Motor 38 GND Motor 39 +5V Motor 40 +5V Motor ------------------------------------------------------------ DSP2022-S SCSI Disk Drive Installation Guide 5 Locate Jumper Connector J1 Locate jumper 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. Figure 2 Location of Jumper Connector J1 6 DSP2022-S SCSI Disk Drive Installation Guide Learn the Jumper Functions The jumper functions on the SCSI drive are described in Table 3. These jumpers allow you to set the device address, disable automatic spin-up, change the delay time before spin-up, and enable drive power for an external SCSI terminating resistor. The drive is shipped with all jumpers installed. Table 3 Jumper Descriptions ------------------------------------------------------------ Jumper Function 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 spin up when power is applied OUT 4 Disables spin-up delay timer. IN Enables spin-up delay timer of 10 seconds times the SCSI ID. The delay is valid only when automatic spin up is enabled. OUT 5 Reserved IN 6 Prevents the manufacturing test from being initiated if pin A1 is grounded. OUT 7 Enables drive power to an external SCSI bus terminator IN Disables drive power to an external SCSI bus terminator OUT ------------------------------------------------------------ DSP2022-S SCSI Disk Drive Installation Guide 7 Set the SCSI Device Address Jumpers 0, 1, and 2 are used to set the SCSI device address. Table 4 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 Jumper 1 Jumper 0 Device Address ------------------------------------------------------------ IN IN IN 0 (see Table 5) IN IN OUT 1 IN OUT IN 2 IN OUT OUT 3 OUT IN IN 4 OUT IN OUT 5 OUT OUT IN 6 OUT OUT OUT 7 ------------------------------------------------------------ 8 DSP2022-S SCSI Disk Drive Installation Guide Set the SCSI Address Remotely When jumpers 0, 1, and 2 are left in place for a device address of 0, the drive will use the remote active encoded SCSI device address (ID) number on 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 Remote SCSI Address Determination ------------------------------------------------------------ Pin A7 Pin A6 Pin A5 Device Address ------------------------------------------------------------ 1 1 1 0 1 1 0 1 1 0 1 2 1 0 0 3 0 1 1 4 0 1 0 5 0 0 1 6 0 0 0 7 ------------------------------------------------------------ NOTE Table 5 refers to Transistor-Transitor Logic (TTL) voltage levels. TTL high = 1, and TTL low = 0. 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 10 DSP2022-S SCSI Disk Drive Installation Guide Figure 4 Bottom Mounting Holes DSP2022-S SCSI Disk Drive Installation Guide 11 Use the Drive Mounting Guidelines Use this list of drive mounting guidelines to prevent mounting problems. · The drive may be mounted in any 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 screw depth penetration of the bottom mounting holes is 0.381 centimeters (0.15 inches). · The recommended screw depth penetration of the side mounting holes is 0.254 centimeters (0.1 inches). 12 DSP2022-S SCSI Disk Drive Installation Guide Drive Specifications The performance and environmental specifications for your disk drive are listed in Table 6. Table 6 Drive Specification Summary ------------------------------------------------------------ Formatted Storage 220,000,000 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) Width 2.75 in. (69.8 mm) Weight 7.3 oz. (.20 kg.) Voltage & regulation +5VDC +/- 5% Active mode power Less than 5 watts Operating Altitude -200 to + 10,000 feet -61 to + 3,048 meters Operating Temperature +40 to +131 degrees F +5 to +55 degrees C ------------------------------------------------------------