Electrical Safety and Installation Requirements U.S. Federal Communications RADIATED ENERGY Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
CAUTION: DO NOT detach rubber feet from the product unless an Allied Telesyn vertical mounting chassis is being used. CAUTION: MECHANICAL LOADING - Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to uneven loading. OPERATING TEMPERATURE This product is designed for a maximum ambient temperature of 40 degrees C. ALL COUNTRIES: Install product in accordance with local and National Electrical Codes.
SIKKERHED ELEKTRISKE FORHOLDSREGLER ADVARSEL: RISIKO FOR ELEKTRISK STØD For at forebygge ELEKTRISK stød, undlad at åbne apparatet. Der er ingen indre dele, der kan repareres af brugeren. Denne enhed indeholder LIVSFARLIGE STRØMSPÆNDINGER og bør kun åbnes af en uddannet og kvalificeret tekniker. For at undgå risiko for ELEKTRISK STØD, afbrydes den elektriske strøm til produktet, før LAN-kablerne monteres eller afmonteres.
INSTALLATIE ELEKTRISCH: OVERBELASTING VAN WISSELSTROOM HOOFDCIRCUIT Tijdens de installatie van het produkt dient men rekening te houden met de gecombineerde waarden op de naamplaatjes bij het aansluiten van het toestel op de wisselstroom-voedingsdraden. ELEKTRISCHE TOESTELLEN VAN KLASSE 1 DIT TOESTEL MOET GEAARD WORDEN. De stekker moet aangesloten zijn op een juist geaarde contactdoos.
RÉGLAGE DE TENSION ÉLECTRIQUE ET CHANGEMENT DES FUSIBLES Avant de brancher le matériel dans la prise secteur, vérifier que celui-ci est réglé sur la tension alternative d'entrée appropriée. Le réglage de la tension peut être ajusté en faisant sortir le porteur V/ F. Continuer l'ajustage jusqu'à ce que la tension exigée apparaisse dans la fenêtre -- réinstaller. Utiliser un fusible de type IEC 127, 5 x 20 mm. Fusible à retard, 250V, 2.5 A. Le fabricant recommandé est BUSS, modèle série S506.
NORME DI SICUREZZA AVVERTENZE ELETTRICHE ATTENZIONE: PERICOLO DI SCOSSE ELETTRICHE Per evitare SCOSSE ELETTRICHE non asportare il coperchio. Le componenti interne non sono riparabili dall'utente. Questa unità ha TENSIONI PERICOLOSE e va aperta solamente da un tecnico specializzato e qualificato. Per evitare ogni possibilità di SCOSSE ELETTRICHE, interrompere l'alimentazione del dispositivo prima di collegare o staccare i cavi LAN.
ELEKTRISK — TYPE 1- KLASSE UTSTYR DETTE UTSTYRET MÅ JORDES. Strømkontakten må være tilkoplet en korrekt jordet kontakt. En kontakt som ikke er korrekt jordet kan føre til farlig spenninger i lett t ilgjengelige metalldeler. ELEKTRISK — MEDDELELSE OM LEDNINGER Bruk en strømledning av maksimalt 4.5 m. i lengde, godkjent for minst av 6 amp, 250V, fremstilt av HAR ledning IEC 320 koplingsstykke i den ene enden, og i den andre enden en plugg som er blitt godkjent i brukerlandet.
CUIDADO: As aberturas de ventilação não devem ser bloqueadas e devem ter acesso livre ao ar ambiente para arrefecimento adequado do aparelho. CUIDADO: NÃO RETIRE os calços de borracha do produto a menos que esteja sendo usado um chassis de montagem vertical Allied Telesyn. CUIDADO: CARREGAMENTO - O equipamento deverá ser montado no suporte de montagem de forma tal que não cause perigo devido a carregamento não uniforme.
SÄKERHET TILLKÄNNAGIVANDEN BETRÄFFANDE ELEKTRICITETSRISK: RISK FÖR ELEKTRISK STÖTFör att undvika ELEKTRISK stöt, ta ej av locket. Det finns inga delar inuti som behöver underhållas. Denna apparat är under HÖGSPÄNNING och får endast öppnas av en utbildad kvalificerad tekniker. För att undvika ELEKTRISK STÖT, koppla ifrån produktens strömanslutning innan LAN-kablarna ansluts eller kopplas ur. FARA FÖR BLIXTNEDSLAG FARA: ARBETA EJ på utrustningen eller kablarna vid ÅSKVÄDER.
TurboStack™ 4-, 7-, and 8-Slot Chassis and Backplanes Installation Manual
Copyright 1996 Allied Telesyn International Corp. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn International Corp. Allied Telesyn International Corp. reserves the right to make changes in specifications and other information contained in this document without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesyn International Corp.
Table of Contents Electrical Safety and Installation Requirements .................................... i Preface .............................................................................................................xv About This Manual............................................................................................xv The Chassis Products .......................................................................................xvi Chassis and Backplane Product Naming Conventions .............
Chapter 4 Troubleshooting ........................................................................................... 27 Helpful Hints .................................................................................................... 28 Resetting a Malfunctioning Hub Module ........................................................ 28 Reloading the Management Firmware............................................................ 29 Replacing a Failed Hub Module (Hot Swapping)..................................
Preface The TurboStack series of chassis and backplane products provides convenient desktop and rackmount installation for Allied Telesyn’s TurboStack family of hubs and switches. About This Manual This manual is written to give you, the Authorized Service Person, the information you need to install the product successfully. Information in this manual is organized in four chapters: Chapter 1— “The TurboStack Chassis,” describes the features and shipping contents of all TurboStack chassis models.
Preface The Chassis Products This manual describes the TurboStack chassis with power. Chassis products are available in the following size options: ❑ The standard four- and eight-slot chassis with standard backplanes allow you to stack up to four and eight TurboStack hubs, respectively. ❑ The seven-slot chassis with segmented backplanes allow you to stack up to six TurboStack hubs and either one AT-TS90TR or one AT-TS95TR switch module.
TurboStack Chassis and Backplanes The following products have been tested by UL for use with the following models: ❑ AT-TS06F/XX ❑ AT-TS24T ❑ AT-TS08 ❑ AT-TS24TR ❑ AT-TS12F/XX ❑ AT-TS24TRS ❑ AT-TS12FS/XX ❑ AT-TS24TS ❑ AT-TS12T ❑ AT-TS90TR ❑ AT-TS12TR ❑ AT-TS95TR Note To ensure that any specific chassis model is readily available, please contact your Allied Telesyn sales representative before placing your order.
Preface Chassis and Backplane Product Naming Conventions The chart below explains the meaning of each digit in Allied Telesyn’s chassis product description code.
chap1.features Page 1 Thursday, August 29, 1996 10:26 AM Chapter 1 The TurboStack Chassis This chapter describes the following topics: ❑ TurboStack chassis models ❑ Chassis dimensions ❑ Shipping contents ❑ Installation specifications Chassis Models Installation procedures described in this manual apply to the chassis models listed in Table 2.
chap1.features Page 2 Thursday, August 29, 1996 10:26 AM The TurboStack Chassis ATI’s line of chassis models provides desktop and rackmount installation of slim-line hub modules. When hub modules are stacked in a chassis with a standard backplane, they act as a single unit called department concentrator, providing more port connections within one 10 Mbps LAN segment. The concentrator is managed as if it were one hub.
chap1.features Page 3 Thursday, August 29, 1996 10:26 AM TurboStack Chassis and Backplanes The backplanes provide: ❑ SNMP redundancy within the chassis ❑ Automatic software downloads to all hub modules in the chassis ❑ The ability to hot swap hub modules in the chassis The 7-slot segmented backplane chassis provides for the installation of up to six hubs and one switch. Figure 2 shows an example of a 7-slot segmented backplane chassis with a variety of TurboStack hubs and an AT-TS90TR switch.
chap1.features Page 4 Thursday, August 29, 1996 10:26 AM The TurboStack Chassis Chassis models also come with segmented backplanes that provide for the installation of up to four or up to eight hubs and connectivity to an external switch. See Figure 3 for an example of how a fully-populated, 4-slot, rackmount chassis and an external switch can be installed in a 19-inch relay rack.
chap1.features Page 5 Thursday, August 29, 1996 10:26 AM TurboStack Chassis and Backplanes Dimensions of the TurboStack Chassis Models This section shows the different chassis models and their dimensions. Four-Slot Rackmount Chassis Dimensions The dimensions of the 4-slot rackmount chassis are shown in Figure 4. The dimensions apply to both standard and segmented backplane models. 450 mm. (17.7 in.) 267 mm. (10.5 in.) 222 mm. (8.75 in.) 483 mm. (19.0 in.
chap1.features Page 6 Thursday, August 29, 1996 10:26 AM The TurboStack Chassis Seven- and Eight-Slot Rackmount Chassis Dimensions The dimensions of the 7- and 8-slot rackmount chassis are shown in Figure 6. 450 mm. (17.7 in.) 267 mm. (10.5 in.) 400 mm. (15.75 in.) 483 mm. (19.0 in.) Figure 6: Seven- and Eight-Slot Rackmount Chassis Dimensions Seven- and Eight-Slot Desktop Chassis Dimensions The dimensions of the 7- and 8-slot desktop chassis are shown in Figure 7. 485 mm. (19.7 in.) 307 mm. (12.1 in.
chap1.features Page 7 Thursday, August 29, 1996 10:26 AM TurboStack Chassis and Backplanes What the Chassis Package Includes Check your chassis package for the contents listed in Table 3.
chap1.features Page 8 Thursday, August 29, 1996 10:26 AM The TurboStack Chassis The screws come in different sizes and are stored in individual plastic bags for your convenience. If any items are damaged or missing, contact your ATI sales representative. Chassis Installation Specifications Make sure the environment in which you are installing the chassis meets the following specifications: ❑ Required ventilation clearance on all sides: 191 mm (7.5 in.
Chapter 2 Chassis Installation This chapter describes the procedures to install a chassis in a rack or on a desktop, and the procedures to install modules in the chassis. Prerequisites to Install You can install a variety of ATI products in the chassis; each one may have specific features.
Chassis Installation The following procedures are also available beginning on page 18: ❑ Re-installing faceplates/air-dams, if your chassis has empty slots ❑ Replacing burnt fuses Reconfiguring the Voltage You can configure the fan voltage for either 120 or 240 volts AC, depending upon the voltage your country uses. The current voltage is visible on the back of the chassis, just below the power cord plug as shown in Figure 8.
TurboStack Chassis and Backplanes To change the voltage: Warning Setting the voltage too high will cause overheating of the fans in the chassis. Setting the voltage too low will reduce the effectiveness of the fans and will cause overheating of the modules. 1. Use the slotted end of a screwdriver to remove the fuse carrier. 2. Pull out the fuse board and turn upside down. 3. Re-insert the fuse board in the carrier until the required voltage appears in the window as in Figure 8 on page 10. 4.
Chassis Installation To install the rackmount chassis in a 19-inch rack: 1. Support the chassis and slide it into a rack. 2. Attach the chassis frame to the rack via the four corner holes using the rackmount screws provided. 3. Plug in the power cord to turn on the fan. You are done with the rackmount installation. Proceed to page 13 for the procedures to install hubs and other single-height modules in the chassis. To install the desktop chassis horizontally: 1.
TurboStack Chassis and Backplanes 3. Place the left rear corner of the chassis edge first in the stand (Figure 10). Stand for vertical mount Figure 10: Vertical Mount Installation 4. Plug in the power cord to turn on the fan. You are done with the vertical installation. Follow the procedures to install hubs and other single-height modules in the chassis.
Chassis Installation 4. Remove the four screws and rubber feet from the bottom of all modules as shown in Part A of Figure 11. A B Figure 11: Removing the Rubber Feet 5. Re-install the same four screws you removed in Step 4 without the rubber feet, as shown in Part B of Figure 11. Note After removing the rubber feet, you must replace the screws. Otherwise, the unit will expand and not fit in the chassis. Save the rubber feet so they may be used again in a standalone configuration at a later date. 6.
TurboStack Chassis and Backplanes 7. Slide the master hub module along the chassis guides in slot 1 but do not push it all the way in. 8. Plug in the master hub’s power cord and check the front panel indicators to ensure the unit is operational. The “Master” LED illuminates and remains a solid amber. 9. Push gently to seat its interrepeater bus connector into the backplane. 10. Repeat Steps 7 through 9 to install each remaining module in slots 2 through n.
Chassis Installation 14. Connect the appropriate data cables. If you have a standard configuration, you are done with module installation.
TurboStack Chassis and Backplanes This ensures the switch’s stability in the chassis. 8. Press the handles back into their flush position. 9. Connect the appropriate data cables. You are done with the switch installation. Installing an External Switch These procedures apply to 4- and 8-slot segmented backplane configurations. The external switch is either installed on a desktop or in a 19-inch rack. To install a desktop external switch: Warning Never install the switch in a vertical orientation. 1.
Chassis Installation ❑ If you are installing any other ATI switch, use standard chassis screws (not provided). 4. Power up the switch. 5. Connect the appropriate data cables. You are done with the installation of the external rackmount switch. Re-installing Faceplates/Air-Dams in the Chassis Faceplates/air-dams control air flow and help keep the chassis cool. Chassis are shipped with the faceplates/air-dams in place.
TurboStack Chassis and Backplanes Replacements for Burnt Fuses A spare fuse is located in a compartment in front of the currently used fuse. You can get a spare fuse by sliding the compartment open. Refer to Figure 8 on page 10 for the location of the fuse carrier. References After completing the installation procedures in this chapter, you are now ready to configure your network. This manual refers to ATI products with management capabilities.
Chapter 3 The Standard and Segmented Backplanes This chapter describes the characteristics of and the procedures to install a backplane. Backplanes are pre-installed with all ATI chassis; however, you can order just the backplane according to any changes in your network. Follow the procedures in this chapter to remove your current backplane and install a replacement. Installation procedures apply to any ATI backplane listed in Table 4.
The Standard and Segmented Backplanes J1 Slot 1 J2 Slot 2 J3 Slot 3 J4 Backplane label Interrepeater bus receptacles J1 Slot 1 J2 Slot 2 J3 Slot 3 J4 Slot 4 J5 Slot 5 J6 Slot 6 J7 Slot 7 J8 Slot 8 Slot 4 “J” numbers Figure 15: Backplanes for the Four- and Eight-Slot Chassis The chassis slot codes, called “J” numbers, are etched to the left and slightly beneath each connector receptacle. Each “J” number corresponds to a slot position in the chassis.
TurboStack Chassis and Backplanes J1 Affix label here J2 J3 J4 J5 J6 SEGMENTED J7 J1 J2 J3 J4 J5 J6 SEGMENTED J7 Figure 16: Label Placement and Location of Backplane What the Backplane Package Includes Check your package for the following items: ❑ One backplane with factory-installed label, “Standard” or “Segmented” ❑ This manual ❑ Warranty card ❑ Self-adhesive label corresponding to backplane label Mount the self-adhesive label on the upper right corner of the chassis frame so t
The Standard and Segmented Backplanes Installing the Backplane You need a Phillips screwdriver during the installation. To install the backplane: 1. Power off the chassis. 2. Remove the modules from the chassis to expose the existing backplane. 3. Remove the Phillips screws from the existing backplane and place them aside for use in Step 5. 4. Remove the existing backplane and place it in a static-resistant cover. Store the de-installed backplane for future use. 5.
TurboStack Chassis and Backplanes 6. Power up the chassis. 7. Re-install the master module in slot 1. 8. Re-install the other modules in their original slot sequence (i.e., in slots 2 through n). If you are installing the backplane for a seven-slot chassis configuration, re-install modules in up to slot 6 only. Reserve the seventh and eighth slot for the switch. 9. Install the switch as follows: ❑ Install an internal switch in the chassis by following the procedures in Chapter 2 beginning on page 16.
Chapter 4 Troubleshooting This appendix describes solutions and some tips in case you encounter errors while using the hubs and switches in the chassis. Use the flowchart in Figure 17 to guide you in the proper sequence of corrective actions.
Troubleshooting Helpful Hints Consider the following hints: ❑ Install the master module in slot 1, if possible. The master cannot manage hubs above it. Make sure you connect the master module into the backplane before all other modules. ❑ When powering up hub modules in the chassis, always start with the master. ❑ Use the Omega menus or SNMP to diagnose problems that occur. ❑ Always quit your Omega sessions when you are done.
TurboStack Chassis and Backplanes However, if this is the master module or you need to use Omega menus through this hub, follow procedures to reload firmware through the cassette. Reloading the Management Firmware Warning Make sure you unplug the hub’s power cord whenever you install and remove the firmware cassette. These procedures do not apply if you are upgrading your firmware to a higher version.
Troubleshooting If the repeating functions are intact and you have a spare management module (your backup module, for example), use the spare as the new master. Otherwise, call ATI Technical Support to arrange for a replacement. Replacing a Failed Hub Module (Hot Swapping) If the fault light stays on after resetting a failed module or reloading firmware, replace the module by performing the following steps: 1. Remove the power cord from the failed hub module. 2.
TurboStack Chassis and Backplanes Resetting a Malfunctioning Switch Module 1. Select Quit from the main management menu, if you can; otherwise, proceed to the next step. 2. Press the reset button on the front panel of the switch. 3. Observe as the following activities occur in sequence: ❑ All LEDs, except the Port Link LEDs, turn on for one second. ❑ The power LED remains on. ❑ The Port Link LEDs turn on briefly.
Troubleshooting Replacing an External Switch in the 19-inch Relay Rack 1. Remove the power cord from the failed switch module. 2. Undo the rackmount screws from the failed switch module and save them for the Step 7. 3. Remove the data cables from the failed switch and label them for your reference. 4. Remove the dust cover, screws, and rubber feet from the replacement switch, if in place, and save for future use. 5. Attach the guiderails to either side of the replacement switch module, if necessary.
TurboStack Chassis and Backplanes Replacing an External Desktop Switch Warning Never install the desktop switch in a vertical position. 1. Remove the power cord from the failed switch module. 2. Remove the data cables from the failed switch and label them for your reference. 3. Remove the dust cover from the replacement switch, if in place, and save for future use. Make sure the rubber feet are installed. 4.
Appendix A Product Reference This appendix contains five tables listing ATI modules that can be used as standalone units or in conjunction with other modules in an ATI chassis. The tables also provide the types of media and connectors associated with the modules. Table 6 is a list of management-capable TurboStack hubs that can perform either the master or the backup function in a chassis configuration.
Product Reference Table 6: TurboStack Hubs with Management (Continued) Model Number Port Count Media/Connector Type AT-TS24T 24 UTP (10BASE-T) with two Telco 50-pin (RJ21) connectors AT-TS24TR 24 UTP (10BASE-T) with RJ45 connectors Table 7 is a list of TurboStack hubs that function as unmanaged repeaters when used in a standalone configuration. They are manageable when used in a chassis configuration that has a master hub from Table 6.
TurboStack Chassis and Backplanes Table 8 is a list of ATI Ethernet switches that can be installed inside or outside the chassis.
Product Reference Table 9 is a list of ATI Ethernet switches that are only installed outside the chassis.
Appendix B Glossary 10BASE2—Also called thinnet Ethernet, thinnet or CheaperNet, a 10 MHz base band specification. Cable impedance is 50 Ω and maximum coaxial segment length is 185 meters (607 ft.). 10BASE5—Also called thick Ethernet, a 10 MHz baseband specification. Cable impedance is 50 Ω and maximum coaxial segment is 500 meters (1,640 ft.). The cable is commonly referred to as yellow cable. Thick Ethernet cable is typically used as a trunk or backbone path of the network. 10BASE-FL—IEEE 802.
Glossary BRANCH CABLE—The AUI cable interconnecting the DTE and MAU system components also known as a drop cable. BIT TIME—The duration of one bit symbol (1/BR). Ethernet specifies a bit time of 100 ns. CARRIER SENSE—In a LAN, an ongoing activity of a data station to detect whether another station is transmitting. CARRIER SENSE MULTIPLE ACCESS with COLLISION DETECT (CSMA/ CD)—This is the access method employed by IEEE 802.
TurboStack Chassis and Backplanes DEPARTMENT CONCENTRATOR—Hub which provides a large number of workstation connections. The term, department concentrator, refers to multiple repeaters housed in a chassis. See Hub, Repeater. DIX CONNECTOR—See D-Sub Connector. FOIRL — A fiber optic standard that allows up to 1,000 meters (3,280 ft.) of multimode duplex fiber optic cable in a point-to-point link. HARMONICA ADAPTER—This adapter provides a simple way to convert the 50-pin Telco connection to RJ45 connections.
Glossary LINK TEST—In 10BASE-T Ethernet there is a link test function that validates the UTP link. This consists of a pulse transmitted from point A on one pair and validated at point B. Point B also transmits a pulse on the second pair to be validated by point A. These pulses occur during media idle states (in between packets). MANAGED MODULE— An intelligent repeater in a department concentrator chassis that makes management data available to the Master or reporting module.
TurboStack Chassis and Backplanes POLARITY CORRECTION—Many 10BASE-T UTP ports have a polarity correction function. If the UTP wiring has RD- and RD+ inadvertently crossed, the polarity correction function will sample the signal and electrically swap the wires. If the TD- and TD+ wires are crossed, the correction would occur at the MAU on the other end of the UTP link. This occurs within a single pair and should not be confused with the crossover cable.
Glossary STRAIGHT-THROUGH—A type of wiring connection where the pins of one connector connect to the same pins of another connector. For example, pin 1 of one connector connects to pin 1 of another connector. STRAIGHT TIP (ST) CONNECTOR—A type of port connection where the pins connect through a bayonet-style interface. SUB MINIATURE ASSEMBLY (SMA) CONNECTOR—A type of port connection where the pins connect through a threaded attachment interface. Also referred to as an SM Connector.
Appendix C Technical Support Fax Order Form Name__________________________________________________________________ Company _______________________________________________________________ Address ________________________________________________________________ City ________________________ State/Province _______________________________ Zip/Postal Code ___________________ Country _______________________________ Phone _______________________________ Fax _______________________________ Incident Summary Model
Appendix D TurboStack Chassis Installation Manual Feedback Please tell us what additional information you would like to see discussed in the manual. If there are topics you would like information on that were not covered in the manual, please photocopy this page, answer the questions and fax or mail this form back to Allied Telesyn. The mailing address and fax number are at the bottom of the page. Your comments are valuable when we plan future revisions of the manual.
Appendix E Where To Find Us For Technical Support or Service Location Phone Fax North America United States, Canada, Mexico, Central America, South America, Australia, New Zealand 1 (800) 428-4835 1 (206) 481-3790 France France, Belgium, Luxembourg, The Netherlands, Middle East, Africa (+33) 1-69-28-16-17 (+33) 1-69-28-37-49 Germany Germany, Switzerland, Austria, Eastern Europe (+01) 30-83-56-66 (+49) 30-435-70-650 Italy Italy, Spain, Portugal, Greece, Turkey, Israel (+39) 2-38093-444 (+39)
For Sales Information United States The Netherlands Atlanta, GA Tel: (404) 717-0290, Fax: (404) 717-0806 Salt Lake City, UT Tel: (801) 350-9130, Fax: (801) 350-9051 Portsmouth, NH Tel: (603) 433-2071, Fax: (603) 433-2471 Vienna, VA Tel: (703) 506-0196, Fax: (703) 506-1986 Chicago, IL Tel: (708) 406-8431, Fax: (708) 406-8462 Austin, TX Tel: (512) 502-3087, Fax: (512) 794-9326 Dallas, TX Tel: (214) 446-9873, Fax: (214) 446-8555 Reading, MA Tel: (617) 944-3492, Fax: (617) 944-3492 Los Angeles, CA Tel: (310)
Appendix F Index Numerics 4-slot chassis dimensions 5 7- and 8-slot chassis dimensions 6 A air-dam installation 18 AT-4016 series switches, description 38 AT-TS90TR and AT-TS95TR installation in chassis 16 AT-TS90TR switch, description 37 AT-TS95TR switch, description 37 B backplanes, segmented, models 21 C cabling, hubs and switches 35–38 configuration types, chassis 1 D department concentrator, description 2 dimensions 4-slot chassis 5 7- and 8-slot chassis 6 E external switch installation 17–18 F facep
TurboStack Chassis and Backplanes R replacing external switch 32–33 hub modules 30, 31 resetting hub modules 28 switch 31 S segmented backplane, chassis models 1 sequence to install, chassis and modules 9 shipping contents backplanes 23 chassis 7–8 specifications to install, chassis 8 standard backplane, chassis models 1 switches, ATI, list 37–38 T TurboStack hubs, supported, chassis configuration 35–36 V vertical mount, chassis installation, desktop 12–13 voltage reconfiguration 10 W wiring, see also cab
