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Tecmar Technologies 51000HT, Инструкция по установке и эксплуатации

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24

SQICUGM-EN2  Rev. A

About SCSI Bus Termination

This section provides a brief tutorial about how to configure a system to provide 
proper termination on a SCSI bus.

A single SCSI host adapter can support up to six other SCSI devices. The devices 
can be linked directly to the host adapter or, more commonly, linked to each other 
in a daisy chain. Figure 5 shows two examples of SCSI bus configurations: 1) a 
host adapter with a single (internal) SCSI device and 2) a host adapter with four 
other SCSI devices linked serially. The line the devices share is the SCSI bus.

SCSI is a very powerful I/O protocol that handles large amounts of data very 
quickly. Disturbances on the SCSI bus such as signal distortion, or echo, can 
cause problems. Terminating the SCSI bus filters out signal distortion. It is, 
therefore, very important that the bus be properly terminated.

When a SCSI bus is properly terminated, the first device and the last device on 
the SCSI bus are terminated, and termination is removed or disabled on any 
device in between as shown in Figure 5.

In a QIC drive, SCSI termination is either enabled or disabled by installing or 
removing three resistor packs. Power to the terminators is supplied by one SCSI 
terminator power jumper.

Internal QIC drives are shipped with termination enabled. To disable or remove 
termination on an internal model, refer to “Setting SCSI ID and Termination 
Power” in this appendix.

External QIC drives are terminated on the rear panel of the unit.

qicaa.fm  Page 24  Wednesday, April 23, 1997  6:07 PM

Содержание 51000HT

Страница 1: ... Pike Road Bldg E Longmont Colorado 80501 303 682 3700 Fax 303 776 7706 QIC Tape Drive Installation and User s Guide Models 5525ES E5525ES 51000HT E51000HT 52000HT and E52000HT PN SQICUGM EN2 qiccover fm Page i Friday April 25 1997 3 41 PM ...

Страница 2: ...drives the drives respond to system inquiries as model 51000 When selecting drivers for the 52000 use the 51000 driver provided with the software This allows the use of current software and provides the full functionality of model 52000 qiccover fm Page ii Friday April 25 1997 3 41 PM ...

Страница 3: ...Tecmar makes no representation or warranties with respect to the contents of this document and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose Further Tecmar reserves the right to revise this publication and to make changes in it from time to time without obligation of Tecmar to notify any person or organization of such revision or changes LIM...

Страница 4: ...n If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and back on the user is encouraged to try to correct the interference by one or more of the following measures Reorient the receiving antenna Increase the separation between the equipment and receiver Plug the computer into a different outlet so that the compute...

Страница 5: ...es CE COMPLIANCE FOR EUROPE This device has been tested and found to be in compliance to EN 60950 for information Technology Equipment to the Low Voltage Directive 73 23 EEC of 19 February 1973 as Amended by 93 68 EEC Article 13 of 22 July 1993 and for Radio Interference EN 55022 CISPR 22 Class B limits 1987 and for Electromagnetic Compatibility Directive 89 336 EEC of May 3 1989 as Amended by 92 ...

Страница 6: ...973 as Amended by 93 68 EEC Article 13 of July 22 1993 Electromagnetic Compatibility EN 55022 Radio interference characteristics of Information Technology Equipment to Class B limits 1987 EN 50082 1 Electromagnetic Compatibility Directive 89 336 EEC of May 3 1989 as Amended by 92 31 EEC of 28 April 1992 and 93 68 EEC Article 5 of 22 July 1993 IEC 801 2 Electrostatic discharge requirements 1991 IEC...

Страница 7: ...rd 9 Completing the Installation 11 Installing an External Drive 12 Preparing the Computer 12 Preparing the QIC Drive 12 Installing the Cabling and Terminator 13 Setting the SCSI ID 14 Completing the Installation 14 Chapter 3 Using the QIC Drive 15 LED Indicators 16 Data Cartridges 17 Recommended Cartridges 17 Handling and Storage 17 Write Protect 18 Loading a Cartridge 18 Removing a Cartridge 19 ...

Страница 8: ...6 Setting SCSI ID and Termination Power 28 Setting the SCSI ID 28 Setting SCSI Bus Termination and SCSI Bus Termination Power 29 Removing the Cover from an External Drive 31 Removing and Installing the Bezel 34 qicman 3 fm Page viii Friday April 25 1997 4 03 PM ...

Страница 9: ...4 Docking and Cleaning the Heads 21 5 SCSI Bus Termination 25 6 Installing Jumpers on a Pin Block 26 7 Removing Resistor Packs 27 8 SCSI ID Jumper Locations 28 9 QIC Drive Termination and Terminator Power Components 30 10 Removing the Cover from an External Drive 32 qicman 1 fm Page ix Friday April 25 1997 3 44 PM ...

Страница 10: ...Tables 1 SCSI ID and SCSI Bus Termination Default Settings 9 2 LED Indicators 16 3 Recommended Data Cartridges 17 4 Setting the SCSI ID for the 5525ES 51000HT and 52000HT 29 qicman 2 fm Page x Friday April 25 1997 4 01 PM ...

Страница 11: ...rive in a computer or server Chapter 3 Using the QIC Drive contains tape format information describes the controls and indicators and provides essential maintenance instructions Appendix A Setting the SCSI ID Termination and Terminator Power provides specific jumper switch and terminator location and setting information for each model Appendix B Replacing the Bezel provides step by step procedures...

Страница 12: ...rive Make sure you have contacted a grounded surface such as your computer chassis immediately prior to handling the tape drive Do not drop or subject the tape drive to sudden jarring movements Doing so can damage the alignment Do not subject the tape drive to extreme temperatures or high humidity conditions If the tape drive has been stored in a cool area prior to installation allow it to warm up...

Страница 13: ... Chapter 1 INTRODUCTION TO THE QIC DRIVE This chapter provides a brief description of the QIC tape drive its intended applications and the model numbers covered by this manual qicc1 fm Page 1 Friday April 25 1997 12 36 PM ...

Страница 14: ...er inch cartridge provides economical data storage for PCs and servers QIC drives are ideal for hard disk backup archival storage data file distribution and many other applications QIC drives can be installed either inside the PC or server or attached to the PC or server via an external SCSI cable Internal and external models are shown in Figure 1 Figure 1 Internal and External QIC Drives qicc1 fm...

Страница 15: ...v A 3 QIC Model Numbers Several QIC tape drive models are available This manual applies to the following QIC drive models 5525ES E5525ES 51000HT E51000HT 52000HT E52000HT qicc1 fm Page 3 Friday April 25 1997 12 36 PM ...

Страница 16: ...4 SQICUGM EN2 Rev A qicc1 fm Page 4 Friday April 25 1997 12 36 PM ...

Страница 17: ...r 2 INSTALLATION PROCEDURES This chapter provides step by step instructions for 1 unpacking the tape drive 2 installing an internal tape drive and 3 installing an external tape drive qicc2 fm Page 5 Friday April 25 1997 12 40 PM ...

Страница 18: ...hipped inside an anti static bag and cushioned by foam 1 Carefully remove the tape unit from its packaging leaving the drive in its anti static bag 2 Save and store the packaging materials in case the unit needs to be returned 3 In order to install your new QIC drive you will need the following Internal Drive Installation SCSI host adapter board SCSI cable External Drive Installation External SCSI...

Страница 19: ...ing the Computer Required Tools Phillips screwdriver 1 Turn off power to your computer and unplug the power cord 2 Remove the cover from the computer 3 Identify the bay where the drive will be installed and remove the front panel cover from the computer Refer to your computer manual as required NOTE In order to gain access to connectors and cabling inside the computer it may be necessary to move o...

Страница 20: ...nd SCSI Bus Termination The QIC drive has been shipped with the standard default configurations shown in Table 1 In most cases these settings result in a successful installation If the drive does not operate properly after installation or if you wish to change these settings refer to Appendix A for additional information 4 If side rails are required to mount the drive in your computer mount the su...

Страница 21: ... changing terminators on the host adaptor board Refer to your host adapter documentation and About SCSI Bus Termination in Appendix A for more information Table 1 SCSI ID and SCSI Bus Termination Default Settings Variable Setting Notes SCSI ID 4 Can be set to 0 6 0 and 1 are usually used for hard disks 4 is recommended Internal SCSI bus termination Enabled If this is not the last device on the SCS...

Страница 22: ...OTE Pin 1 of the SCSI cable must be correctly installed into pin 1 of the SCSI connector SCSI cables are usually keyed to ensure that they are properly installed If your SCSI cable is not keyed a colored stripe along one edge of the cable indicates the location of pin 1 Refer to the adjacent illustration to determine the location of pin 1 on the SCSI connector at the back of the drive Pin 1 can be...

Страница 23: ...tape drive into the computer housing and install fasteners to secure the tape drive in its bay 6 Connect the free end of the SCSI cable to the SCSI connector on the host adapter NOTE Make sure pin 1 of the cable is connected to pin 1 of the SCSI connector Pin 1 on the cable is indicated by a colored stripe along one edge of the cable pin 1 of the connector is marked by a 1 on the board Refer to th...

Страница 24: ...l a host adapter board in your computer Refer to the host adapter documentation and your computer user s guide 3 Make sure the host adapter board is properly terminated for the configuration being installed It may be necessary to unterminate the host adapter board Refer to About SCSI Bus Termination on page 24 and your host adapter documentation for more information Preparing the QIC Drive CAUTION...

Страница 25: ... on the host adapter SCSI port at the back of the computer 2 Install the other end of the external SCSI cable on one of the SCSI connectors on the QIC drive 3 If the drive is the last device on the SCSI bus install a terminator on the remaining SCSI connector on the QIC drive NOTE If this is not the last device on the SCSI bus refer to About SCSI Bus Termination in Appendix A to determine how to t...

Страница 26: ...n 1 Remove the plastic shipping insert from the tape drive by pressing it in and then releasing it 2 Power up the tape drive by pressing the ON OFF switch on the back of the tape drive to ON 3 Restore power to your computer 4 Refer to your software installation guide to load the appropriate QIC drive software into your computer 5 Fill out and return the warranty registration card 1 Using a pen tip...

Страница 27: ...E QIC DRIVE This chapter provides information needed in daily use of the QIC drive including interpretation of the LED indicators use and care of the cartridges and required cleaning instructions qicc3 fm Page 15 Friday April 25 1997 2 24 PM ...

Страница 28: ...tatus Figure 2 shows the locations of the LEDs Figure 2 LED Indicators Table 2 LED Indicators LED Color State Indication Notes Activity Amber Flashing Drive activity on the SCSI bus Pulsing 1 5 times at 3 second intervals Drive fault condition exists Contact technical support Unit Power Green On The drive is powered on External drive models only Off The drive is powered off External drive models o...

Страница 29: ...e data integrity Table 3 lists the Tecmar data cartridges compatible with each QIC drive model Storage capacity is shown at the intersection of each drive model number and media model number Handling and Storage Observe the following precautions to protect the data stored on your data cartridges Store the cartridge in its protective case Table 3 Recommended Data Cartridges Drive Model Tecmar Media...

Страница 30: ... the cartridge when loading or ejecting it from the drive Write Protect The cartridge has a write protect feature to prevent recording over existing data To invoke write protection rotate the arrow on the write protect lock until it is in the SAFE position refer to Figure 3 Figure 3 Write Protect Setting Loading a Cartridge To load a cartridge into a drive that is mounted horizontally hold the car...

Страница 31: ...y in the drive in order for the head assembly to be properly positioned for read write operations Removing a Cartridge When operations on a data cartridge are completed the cartridge can be removed from the drive CAUTION Do not remove the data cartridge if the activity LED indicator is on or if the drive is running moving the tape Doing so can damage the drive or the tape and result in loss of dat...

Страница 32: ... of the cartridge baseplate Figure 4 Keep pushing until you feel some resistance and feel and hear a distinct click 2 Release the baseplate The baseplate slides outward moving the head to the docked position 3 Look inside the tape door opening and locate the tape heads the horizontal stripes shown in Figure 4 The heads are approximately five inches inside the tape door and on the left The areas to...

Страница 33: ...SQICUGM EN2 Rev A 21 Figure 4 Docking and Cleaning the Heads qicc3 fm Page 21 Friday April 25 1997 2 24 PM ...

Страница 34: ...22 SQICUGM EN2 Rev A qicc3 fm Page 22 Friday April 25 1997 2 24 PM ...

Страница 35: ...ION AND TERMINATOR POWER This appendix contains information that will allow you to set the SCSI ID and properly configure SCSI termination and terminator power for the SCSI bus on which the QIC drive is installed qicaa fm Page 23 Wednesday April 23 1997 6 07 PM ...

Страница 36: ...s on the SCSI bus such as signal distortion or echo can cause problems Terminating the SCSI bus filters out signal distortion It is therefore very important that the bus be properly terminated When a SCSI bus is properly terminated the first device and the last device on the SCSI bus are terminated and termination is removed or disabled on any device in between as shown in Figure 5 In a QIC drive ...

Страница 37: ...SQICUGM EN2 Rev A 25 Figure 5 SCSI Bus Termination qicaa fm Page 25 Wednesday April 23 1997 6 07 PM ...

Страница 38: ...ting Jumpers Some models contain pin blocks on which jumpers can be installed Installing a jumper over two pins establishes electrical connectivity between the pins setting those pins ON Figure 6 shows how a jumper is installed over two pins A jumper can be stored by placing it over just one of the two pins NOT INSTALLED in Figure 6 leaving those pins OFF Figure 6 Installing Jumpers on a Pin Block...

Страница 39: ...r to Figure 7 to gently pry each resistor pack up and out of its socket Keep the components for possible later use Figure 7 Removing Resistor Packs To install a resistor pack make sure pin 1 of the component marked 1 is lined up with pin 1 on the board To identify the location of pin 1 on the board look for a 1 or a rectangle with a rounded end The 1 or the rounded end indicates pin 1 s location q...

Страница 40: ...o Removing the Cover from an External Drive on page 31 Setting the SCSI ID Pins 1 through 6 of the pin block JP1 located at the rear of the drive refer to Figure 8 set the SCSI ID Installing a jumper over pins 1 and 2 sets a value of 1 installing a jumper over pins 3 and 4 sets a value of 2 installing a jumper over pins 5 and 6 sets a value of 4 The sum of these then determines the SCSI ID It is p...

Страница 41: ...CSI bus remove these terminators by carefully prying them up and out using a flat blade screwdriver Keep the devices for possible later use Termination power can be supplied either by the drive or by the host When jumper E1 on the underside of the drive refer to Figure 9 is installed termination power is supplied by the drive When jumper E1 is not installed Table 4 Setting the SCSI ID for the 5525...

Страница 42: ...rface via pin 25 of the host The QIC drive is shipped in its default configuration with termination power supplied by the drive rather than by the host Figure 9 QIC Drive Termination and Terminator Power Components qicaa fm Page 30 Wednesday April 23 1997 6 07 PM ...

Страница 43: ...Facing the front of the drive remove the rubber foot closest to you on the left side Refer to Figure 10 3 Using a phillips screwdriver remove the locking screw located under the foot 4 Return the drive to its upright position press in on the tab located on top of the drive and slide the drive forward and out of the drive cover To replace the cover reverse this procedure qicaa fm Page 31 Wednesday ...

Страница 44: ...32 SQICUGM EN2 Rev A Figure 10 Removing the Cover from an External Drive qicaa fm Page 32 Wednesday April 23 1997 6 07 PM ...

Страница 45: ...SQICUGM EN2 Rev A 33 Appendix B REPLACING THE BEZEL This appendix describes how to remove a bezel and replace it with another bezel of another color qicab fm Page 33 Friday April 25 1997 12 33 PM ...

Страница 46: ...procedure CAUTION Do not over tighten the screws when installing the bezel Doing so can crack the bezel 1 Remove five fasteners from the bezel three from along the bottom front edge and one from either side edge 2 Lift the bezel off the drive qicab fm Page 34 Friday April 25 1997 12 33 PM ...

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