Overland Data DLT LibraryXpress Series, Service Manual

Page 1: ...104140 101 Revision A 7 97 LibraryXpress Series DLT Library System Including LXG LXB and LXC Modules and XpressChannel Service Manual DIGITAL Part Number EK TL890 SV A01...

Page 2: ...These changes will be incorporated in new editions of this publication Overland Data assumes no responsibility for the accuracy completeness sufficiency or usefulness of this manual nor for any probl...

Page 3: ...der 9 ADVANCED DESIGN FEATURES 9 Embedded Diagnostics 10 Error Checking 10 Buffer 10 Compression 10 Capacity 10 Media Life 11 RELATED PUBLICATIONS 11 CHAPTER 2 INSTALLATION 13 INTRODUCTION 13 PLANNING...

Page 4: ...REMOVING CARTRIDGES 63 Removing a Magazine 64 Emergency Magazine Removal 65 Inserting Cartridges Into the Magazine 65 Inserting a Magazine 65 BASE MODULE 67 CAPACITY MODULE 68 TAPE REQUIREMENTS 68 Ca...

Page 5: ...IONS 133 INDEX 135 Figures FIGURE 1 1 GLOBAL CONTROL MODULE FRONT VIEW 5 FIGURE 1 2 BASE MODULE FRONT VIEW 6 FIGURE 1 3 CAPACITY MODULE FRONT VIEW 6 FIGURE 1 4 BASE MODULE 10 CARTRIDGE MAGAZINE 7 FIGU...

Page 6: ...LT SCREEN 50 FIGURE 3 9 LIBRARYXPRESS MENU STRUCTURE 52 FIGURE 3 10 MAIN MENU 53 FIGURE 3 11 PANEL LOCKED SCREEN 53 FIGURE 3 12 CODE ENTRY SUBMENU 53 FIGURE 3 13 SHOW STATUS MENU 54 FIGURE 3 14 LIBRAR...

Page 7: ...6 CONTROL PANEL 95 FIGURE 6 7 CONTROLLER PWB CONNECTOR LOCATIONS 96 FIGURE 6 8 CONTROLLER PWB CONNECTOR LOCATIONS EARLY BASE MODULE 97 FIGURE 6 9 DOOR OPENER MAGAZINE LOCK ASSEMBLY 100 FIGURE 6 10 FAN...

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Page 9: ...nel In a DLT LibraryXpress System you can combine modules to provide the right combination of capacity and performance to meet your present requirements Overland Data s SmartScale Storage architecture...

Page 10: ...many drives it is desirable to use multiple SCSI busses for the drives so the data transfer rate of the drives is not limited by bus bandwidth In a large high performance system drives may be connect...

Page 11: ...dels can also read and write DLTtape III cartridges Both read and write densities are selectable from the front panel and under SCSI control from the host Note It is strongly recommended that if you d...

Page 12: ...or those applications requiring that some combination of drives and robotics be daisy chained to a single SCSI bus These configurations are described in more detail in the section on SCSI Interfaces i...

Page 13: ...high performance library robotics system Conversion of Free Standing Base Modules for System Use Your existing LibraryXpress Base Modules may be added to your system by resetting internal jumpers rem...

Page 14: ...panel features a 4 line by 20 character backlit LCD display three or four LED indicators and four buttons The buttons enable the operator to navigate through the menu structure to select and display...

Page 15: ...re 100 120 VAC and 200 240 VAC The power supply is capable of operating at 50 or 60 Hz without any adjustment or modification AC power is supplied to the power supply by a single IEC compatible socket...

Page 16: ...8 Chapter 1 Introduction Figure 1 5 Global Control Module Rear View Figure 1 6 Base Module Rear View...

Page 17: ...a s Mainframe Class Library Robotics which is known for ruggedness and reliability Bar Code Reader The optional bar code reader may be mounted on the cartridge shuttle in each module It reads bar code...

Page 18: ...ply a 16 bit parity check to each record a 64 bit CRC to each 4 kB of data and Reed Solomon error correction code overall In addition there is an internal parity check on the data buffer Buffer Drives...

Page 19: ...ile content The native capacity for a full Base Module magazine is ten times the native capacity per cartridge for Global Control and Capacity Modules 16 times the native capacity per cartridge Media...

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Page 21: ...on options to your particular application The remainder of this chapter describes each of these steps Planning Your Installation The DLT LibraryXpress System is intended to be mounted in a standard 19...

Page 22: ...nnected to LibraryXpress modules The Global Control Module senses the position of each module during initialization at power up Even if there are gaps between modules the system will operate correctly...

Page 23: ...modules Follow the instructions for installing rack slides later in this chapter After the rack slides and the slave modules are in place and after the XpressChannel is assembled you will install the...

Page 24: ...ith two captive screws Carefully note the orientation of the block with respect to the car as shown in Figure 2 3 Orientation of Parts During Assembly To determine the orientation of an extension sect...

Page 25: ...ngth is correct for your system turn to the section titled Mounting the Module Rack Slides and continue on to the end of the chapter If you need to add sections please take a few minutes to read this...

Page 26: ...Be sure that the beveled edge is toward the inside corner of the sections 6 Install two M3 x 20 mm Phillips sems screws through each tie bar into the threaded holes in the flanges of the extrusion se...

Page 27: ...on the rear surface of that section Be sure that the word LEFT that is stamped on the brace is upright 11 Insert two M4 x 20 Phillips sems screws through the holes in the support brace into the holes...

Page 28: ...the belt toward you position the right end of the belt about halfway along the XpressChannel 6 Referring to Figure 2 5 thread the left end of the belt counter clockwise around the motor drive pulley 7...

Page 29: ...Chapter 2 Installation 21 Figure 2 6 Threading the Belt Through the Base Section Figure 2 7 Checking Belt Length...

Page 30: ...ce between the ends of the belt approximately 1 32 10 Tighten the four screws that hold the belt retaining plates C a p ti ve Sc re w s Pre ss D o w n Figure 2 9 Aligning the Captive Screws With the B...

Page 31: ...ding the two preceding sections To add to an existing XpressChannel you must first partly disassemble it then make the necessary changes as described in the preceding sections Use the following proced...

Page 32: ...earance behind the rear panel of the module CAUTION Make certain that when the module is fully extended that a force of 20 of the rack weight but not more than 57 lb applied in any direction but upwar...

Page 33: ...k Slide Parts 1 Refer to Figure 2 10 to identify and orient the parts of the slides The slide is attached to the Module enclosure by means of three screws through the inner slide These will be accessi...

Page 34: ...Locate the screw holes in the front and rear rails of the cabinet or equipment rack where the module is to be installed 4 Assemble a mounting bracket to each outer slide using two 10 32 screws with w...

Page 35: ...tive screws just begin to engage then tighten the captive screws to fully seat the module Note Do not slam the module against the rack Doing so can dislodge the clip nuts 16 Repeat this procedure for...

Page 36: ...t module and c The XpressChannel is pressed firmly against the backs of the top and bottom modules 6 One by one push the remaining modules into place and tighten the captive screws In each case ensure...

Page 37: ...tics that is located in the slave modules is controlled by the Global Control Module through a cable connected to the Global Control Interface connector on each module Each module has a separate AC po...

Page 38: ...a Harmonized cord marked HAR or a nationally certified cord SCSI Interfaces DLT LibraryXpress Modules may be ordered with a choice of single ended or differential SCSI 2 interfaces or if 7000 series...

Page 39: ...at the end of each bus as explained below in the section headed Interface Cable and Terminator Installation Figure 2 13 shows the SCSI cable connectors and bus terminator used on the module In order...

Page 40: ...ce can be found in ANSI X3 131 1994 or later Note This equipment has been tested for electromagnetic emissions and immunity using good quality shielded cables The use of unshielded cables poor quality...

Page 41: ...nnectors Terminator Jumpers and Cables SCSI 2 Interface Daisy chained Connection Shown To properly cable a module 1 Make sure that your host system has an appropriate SCSI interface card for each SCSI...

Page 42: ...s The setting of each option is stored in non volatile memory in the module For most applications you will not need to change the factory default settings To change settings you need to use the Contro...

Page 43: ...e 2 18 appears Figure 2 18 Configure Submenu 4 Press the button repeatedly to select Set Special Configuration as shown in Figure 2 19 Set Serial Number Set Unload Mode Set Negotiation Set Special Con...

Page 44: ...ne to Slave The screen shown in Figure 2 22 appears Change Not Effective Until Reboot ENTER to Continue Figure 2 22 Acknowledgment Screen Press the Enter button When the Special Configuration Submenu...

Page 45: ...ation options that can be reached by scrolling with the button Figure 2 25 Configure Submenu 4 To select a configuration option press the or button on the control panel until the on the display is nex...

Page 46: ...on The moves to line 2 and the remains at the end of line 4 and a appears at the end of line 1 Now you can use the and buttons to scroll line 2 to display the possible settings Scroll downward so that...

Page 47: ...to line 4 Now you can use the and buttons to scroll line 4 to specify how many slots will be designated as mail slots Scroll to the desired number then press the Enter button to save the new selection...

Page 48: ...isable the library robotics SCSI bus parity checking and 2 set the SCSI addresses of the drives and the library robotics The defaults are parity enabled Library Bus ID 6 The designators DLT 1 through...

Page 49: ...t It is implemented using SCSI Import Export elements Set Reserved Slots Some host software imposes size limits on tape library magazines for licensing purposes and will not operate with a library tha...

Page 50: ...0 Auto Selection Compression Enabled Disabled Enabled at 10 0 only Auto Disabled SCSI Lib Bus Parity Enable Disable Lib Bus ID SCSI ID DLT1 Bus ID SCSI ID DLTn Bus ID SCSI ID Enabled 6 Element Base Tr...

Page 51: ...gh n 0 Special Config Mode Page 1F Length Short 0x0E Long 0x12 Model Number OVERLAND LX Blank Line Vendor Unique Init Elem Status No Inventory Force Inventory Force Label Scan Unit Attn Report One All...

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Page 53: ...ontrol module includes a power switch for the module and the control panel which has buttons a display and indicators Figure 3 1 shows the front panel Figure 3 1 Global Control Module Front Panel Powe...

Page 54: ...el or from the host computer The Ready indicator goes out when you enter the Menu Mode The Alert LED yellow indicates that a fault or some other matter that requires attention has occurred in one of t...

Page 55: ...s submenu When either the Drive Fault or the Loader Fault LED red is illuminated a Fault Screen appears on the LCD display The Fault Screen is described later in this chapter A list of fault symptom c...

Page 56: ...cape button while the Main Menu is displayed exits the Menu Mode and returns you to the Default Screen The Default Screen is shown in Figure 3 6 the Main Menu is shown in Figure 3 10 3 To display the...

Page 57: ...Errors N A N A Note 1 There is an auto repeat feature for the and buttons When the user presses either button for more than one half second the control panel behaves as if the user were pressing and...

Page 58: ...a are described later in this chapter Starting the System Note When turning on power to the DLT LibraryXpress System power must be applied to the Global Control Module either simultaneously with or af...

Page 59: ...nes represent the cartridge magazine in the Global Control Module A rectangle will appear in each position which contains a cartridge An underline represents an empty slot Fault Screen When a fault is...

Page 60: ...the Base Module On line 4 a rectangle appears in each position which contains a cartridge An underline would appear at each empty slot The numbers at the beginning and end of line 4 represent the numb...

Page 61: ...he module within the system and the size of the magazine If no magazine is installed line 4 says No Magazine The boxes which are present on this line indicate that a cartridge is present in the corres...

Page 62: ...ng the Menu Mode Important Note When the Global Control Module enters the Menu Mode the Ready light goes out This means that the module is offline and responds to all commands from the host with a SCS...

Page 63: ...10 Main Menu Note If the Control Panel has been locked the screen shown in Figure 3 11 appears instead of Figure 3 10 You must know the unlock code for the system before you can proceed Figure 3 11 P...

Page 64: ...e submenu The at the end of the fourth line of the Main Menu means that there are one or more additional items that can be reached by scrolling using the button The items available on the Main Menu ar...

Page 65: ...re Revision Date Time Loader Status Library Configuration Vendor Identification Product Identification Transport Address Storage Address Transfer Address Imp Exp Address Serial Number Wide SCSI SCSI B...

Page 66: ...perate Handle Map Information Screen When you select Map Info the screen in Figure 3 16 appears The location being reported appears on Line 1 The content of the bar code on the label up to 8 character...

Page 67: ...w History Menu The Show History Menu enables the operator to review the history of the system An example of the use of the Show History Menu appears later in this chapter under the heading Displaying...

Page 68: ...our digits Be sure to remember the 4 digit number as you will need it in order to enter the Menu Mode An unlock code of 0000 disables panel locking When you have finished entering four digits press th...

Page 69: ...e code is incorrect an error screen appears If you have forgotten your unlock code contact your technical support representative for assistance Displaying Firmware Revision You may display the library...

Page 70: ...d buttons scroll the list to display the error history of the module Loading and Unloading Tapes The Load Unload menus enable you to specify a source and a destination for a cartridge movement As a re...

Page 71: ...rolled the default selection offscreen and haven t yet selected an item from the list Note The contents of the lists on line 2 and line 4 will vary as follows Initial Screen From Line The list on line...

Page 72: ...hoices because 1 you have selected a slot as the source so the destination must be a drive and 2 DLT2 already has a cartridge in it so it cannot be a valid destination Press the Enter button to select...

Page 73: ...gure 3 31 When the Magazine Security Lock is locked the Unlock Open button has no effect If the module is installed in a reasonably secure environment you may elect to leave the Magazine Security Lock...

Page 74: ...er button to display the Main Menu shown in Figure 3 32 Note if the display says that the front panel is locked you need to know the unlock code for your system See the section titled Entering the Men...

Page 75: ...a fault occurs that prevents removal of the magazine turn the power off for five seconds Power up while continuously pressing the button Continue to hold the button until all of the indicators on the...

Page 76: ...o display the Main Menu Note if the display says that the front panel is locked you need to know the unlock code for your system See the section titled Entering the Menu Mode earlier in this chapter f...

Page 77: ...s 2 through 4 10 Press the button three times to move the next to Lock All Media then press the Enter button The display will appear as follows Figure 3 41 Lock All Media Screen 12 All media are now l...

Page 78: ...indicator and the control panel shown in Figure 3 2 The Capacity Module has a 16 slot magazine and no tape drives Tape Requirements The LibraryXpress uses ECMA approved and ANSI proposed standards DLT...

Page 79: ...e 3 43 DLTtape Cartridge Write Protection The write protection switch of a DLTtape cartridge is also shown in Figure 3 43 To enable data recording slide the write protect switch to the right so that n...

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Page 81: ...ll a cleaning cartridge how to clean a drive and how to remove the cleaning cartridge The default location for a cleaning cartridge is slot 1 That is unless you specify a different slot when you start...

Page 82: ...described in Chapter 3 Operation in the section titled Inserting and Removing Cartridges 3 Remove any cartridge present in Slot 1 the slot nearest the handle 4 Insert the cleaning cartridge into Slot...

Page 83: ...2 Maintenance Menu 3 Press the Enter button once to select Clean Drive The following screen appears Figure 4 3 Cleaning Submenu 4 Lines 2 and 4 are scrollable The choices available on Line 2 are DLT1...

Page 84: ...n unload each as described in Chapter 3 Operation in the section titled Loading and Unloading Tapes 2 Remove the magazine from the Global Control Module using the procedure described in Chapter 3 Oper...

Page 85: ...used serial port on the PC and the Global Control port on the rear panel of the Global Control Module 2 If you are operating in windows exit from windows or open a DOS window 3 Insert the upgrade disk...

Page 86: ...ck the following screen appears Flash Firmware Update Successful Please Wait While Library Reboots Figure 4 11 Flash Update Completion Screen The Global Control Module now reboots Do not turn the powe...

Page 87: ...ion between the Global Control Module and one or more slave modules or between a module s processor and a drive processor or b a mechanical malfunction within the LibraryXpress System In most cases bo...

Page 88: ...nt panel of the Global Control Module Table 5 1 Error Recovery Procedures ERP NUMBER PROCEDURE DETAIL C Cycle power to the drive using the AC switch on the front panel of the module Wait 30 seconds to...

Page 89: ...ar C D G 3002 Picker Tach Errors Power Down to Clear D G 3003 Elevator Tach Errors Power Down to Clear D G 3004 Elevator Jammed Power Down to Clear C D G 3005 Picker Jammed Power Down to Clear C D G 5...

Page 90: ...e Maintenance Menu The display will show something similar to the following Clean Drive Diagnostic Menu Demo Menu Flash Update Figure 5 3 Maintenance Submenu 3 Press the button once to move the next t...

Page 91: ...ect Scanner Feedback the library robotics displays the output of the optical scanner if it is installed while releasing control of the shuttle motor so it is free to move You can manually move the shu...

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Page 93: ...d below can be replaced in the field Part numbers are listed in Appendix B The operations described in this chapter are intended to be performed by qualified Customer Engineers If you do not have such...

Page 94: ...octite 222 Important Note All screws that do not use lock washers captive washers or lock nuts must have Loctite 222 applied when reassembled in the field Neglecting this step may result in premature...

Page 95: ...Chapter 6 Parts Removal and Replacement 87 Figure 6 1 Parts Locations Base Module Figure 6 2 Parts Locations Global Control and Capacity Modules...

Page 96: ...ce cables at the rear of the module 3 Pull the module out of the rack on its slides until both slides lock in the extended position 4 Note This step should be performed by two people one on each side...

Page 97: ...ediate slides for the removed module outward until they lock in the extended position 5 Note This step should be performed by two people one on each side of the module Lift the module from the work su...

Page 98: ...on to release the magazine then pull it straight out by its handle Reasons Why It Might Not Work 1 The host computer has disabled the Unlock Open button using the SCSI Prevent Allow Medium Removal com...

Page 99: ...nd three 3 8 holes on the top Refer to Figure 6 1 and Figure 6 9 4 Insert a straight bladed screwdriver through the center 3 8 hole to engage a slotted shaft about 1 1 2 below the bracket 5 Turn the s...

Page 100: ...hat holds one or two DLT drives and their associated cabling It includes the SCSI interface connectors and cables for the Base Module the power cables for the drives and communications cables from the...

Page 101: ...ent RS 422 cables 3 at the drives Remove the cables from under the cable clamps and lift them clear of the caddy 5 Remove two M4 x 8 mm flat head Phillips screws 4 along the upper edge of the Caddy As...

Page 102: ...ect the Drive 1 and Drive 2 if present RS 422 cables 3 at the Controller PWB Refer to Figure 6 8 for connector locations 5 Connect the drive power cable 2 to the Power Supply connector 6 Connect the S...

Page 103: ...ead Phillips sems screws one in each standoff that hold the Control Panel to the Front Panel Do not overtighten 3 At the Control Panel end plug in the cable that connects the Control Panel to the Cont...

Page 104: ...used in some early production Base Modules Note that there is a vertical row of connectors near the front of the PWB a row near the top edge at the rear of the board a large SCSI connector along the...

Page 105: ...odule the drive RS 422 connectors labeled Drive1 RS 422 and Drive2 RS 422 On a Global Control Module remove the trace connector cable 5 Slide the PWB out about one third of the way 6 Disconnect the 5...

Page 106: ...s seated in the two guides on the bottom of the chassis 10 Connect the control panel cable and the 4 pin lock switch assembly cable near the front of the PWB 11 In the LXB and LXC connect the Global C...

Page 107: ...sen or remove the screw near the center of the bracket 5 While holding the door open pull the door opener bracket toward the left side of the chassis Lift the door opener free of the chassis and set i...

Page 108: ...rts are supplied as a factory adjusted matched pair Do not mix old and new parts 1 Locate the end of the motor cable While holding the motor bracket inside the electronics compartment connect the moto...

Page 109: ...ll three M4 x 8 mm Phillips flat head screws along the straight edges of the door opener bracket Note Apply Loctite 222 to the threads of each screw before inserting Release the door 10 Replace the co...

Page 110: ...ottom 2 Insert the fan power cable connector underneath the drive caddy platform and push on the cable until the connector emerges inside the electronics compartment 3 While holding the fan in place p...

Page 111: ...ly Global Control and Capacity Modules Replacement Global Control and Capacity Modules Refer to Figure 6 11 1 Orient the fan and finger guard against the right side of the bulkhead so that the fan pow...

Page 112: ...he left of the door is accessible 3 Remove the Power Supply Assembly as described in this chapter It is not necessary to disconnect the power switch or remove the grounding ring lug 4 Remove the Magaz...

Page 113: ...front end While holding the front of the leadscrew with a 7 16 open end wrench over the flats turn the leadscrew retaining nut clockwise with an 11 mm open end wrench until it has moved about 1 4 inch...

Page 114: ...s turn the leadscrew retaining nut counter clockwise with an 11 mm open end wrench until it is near but not touching the back surface of the front bearing 5 Verify that there is end play in the leadsc...

Page 115: ...unting studs Open the door and rotate it as needed to clear the magazine track and the door opener mechanism Note The spring ends are restrained under the chassis lip The spring torsion will release a...

Page 116: ...o Figure 6 15 1 Remove the cover plate as described in this chapter 2 Remove the Power Supply Assembly as described in this chapter 3 Move the shuttle toward the back of the chassis so the area near t...

Page 117: ...or over its mounting tabs Install the two M2 self tapping screws Do not over tighten the screws 3 Position the magazine track over the mounting studs Route the cable at the sensor end between the cadd...

Page 118: ...of the chassis so the area to the left of the door is accessible 4 Disconnect the Magazine Opto Sensor J19 from the Controller PWB 5 Remove the six M3 x 12 mm flat head Phillips screws that hold the...

Page 119: ...s chapter 2 Remove the door opener mechanism as described under the heading Door Opener Magazine Lock Assembly in this chapter It is not necessary to remove the motor bracket 3 Disconnect the cable fr...

Page 120: ...Switch into its mounting hole 6 If you are not replacing the Magazine Security Lock skip the next three steps 7 Insert the Magazine Security Lock into its mounting hole in the front panel 8 Install th...

Page 121: ...ule Only Removal Refer to Figure 6 18 1 Remove the cover plate as described in this chapter 2 Disconnect the two ribbon cables at the multiplexer PWB 3 Remove sixteen 4 40 jackscrew sockets and split...

Page 122: ...retainers on the sides of the power switch and push the switch out the front of the Front Panel Replacement Refer to Figure 6 19 1 Orient the switch so that the 0 is on the left 2 Push the switch thr...

Page 123: ...e Caddy Base Module only 7 Disconnect the small white 4 pin fan power connector at the floor of the chassis 8 Disconnect the two white 6 pin electronics power connectors at the bottom of the Controlle...

Page 124: ...o the ground post in the bottom of the chassis Install the M4 external star keps nut above and the 8 external tooth star washer below the ring lug 4 Connect the four spade lugs at the front panel AC p...

Page 125: ...late tab at the front of the Power Supply Assembly 5 Loosen two M3 x 6 mm pan head Phillips screws and sems washers holding the Power Supply Assembly to the electronics compartment bulkhead 6 Remove b...

Page 126: ...Connect the four spade lugs at the front panel AC power switch Refer to the inset in Figure 6 20 for orientation of the colors 4 Connect the two white 6 pin electronics power connectors at the bottom...

Page 127: ...sembly to the electronics compartment bulkhead 12 Connect the power supply AC connector at the rear of the supply 13 Replace the cover plate as described in this chapter Shuttle Assembly Removal Refer...

Page 128: ...Disengage the motor from the belt and lift the motor clear of the chassis Figure 6 21 Shuttle Motor Replacement Refer to Figure 6 21 1 Position the motor inside the chassis near where it is to be ins...

Page 129: ...Push downward on the belt between the pulleys The gap between the belt and the straight edge between the pulleys should be approximately 1 8 6 Replace the cover plate as described in this chapter Xpre...

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Page 131: ...tive data transfer rate maximum LXB2110 2210 1 25 MB sec LXB4110 4210 1 5 MB sec LXB7110 7210 5 MB sec Peak SCSI transfer rate synchronous mode LXB2110 2210 5 0 MB sec LXB4110 4210 10 0 MB sec LXB7110...

Page 132: ...min Wet Bulb Temperature 78 8 F 26 C Relative Humidity non condensing 15 to 85 Humidity Gradient 10 hour Altitude 100ft to 10 000 ft 305m to 3050m Non Operating Packed or Unpacked Dry Bulb Temp 40 F t...

Page 133: ...erference causing Equipment regulations Cet appareil num rique de la classe A respecte toutes les exigencies du R glement sur le mat riel brouilleur du Canada FCC Notice This equipment has been tested...

Page 134: ...126 Appendix A Specifications...

Page 135: ...Appendix A Specifications 127 a p a c i t y C C a pa city C C...

Page 136: ...128 Appendix A Specifications...

Page 137: ...d or industrial areas and conforms to the standards set by the Voluntary Council For Inteference by Information Technology Equipment aimed at preventing radio interference in commercial and or industr...

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Page 139: ...ve DLT 106036 002 2000XT Diff Drive DLT 106037 001 4000 SE Drive DLT 106037 002 4000 Diff Drive DLT 106040 002 7000 Diff Drive 108154 001 DLT Drive Door Lever pkg 10 108136 001 Fan Assembly 106035 001...

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