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Cisco AS5800 Series Universal Gateways

Cisco AS5800 Rack Mount and Cable Management

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Table of Contents

Cisco 5814 Dial Shelf
Rack-Mount Instructions

Document Contents
If You Need More Information
Cisco AS5800 Universal Access Server Overview
Cisco 5814 Dial Shelf Overview
Safety Guidelines
Rack-Mounting Considerations
Preparing to Rack-Mount the Dial Shelf
Installing the Rack-Mount Brackets on the Chassis
Installing the Dial Shelf in the Rack
Replacing the Dial Shelf Components
Grounding the Dial Shelf
Cisco Connection Online

Cisco 5814 Dial Shelf
Rack-Mount Instructions


Product Numbers: DCS-5800-RM=, CHAS-5814=

This document explains how to install the rack-mount brackets on the Cisco 5814 dial shelf chassis, and how to install the Cisco 5814 dial shelf in an equipment rack. The installation involves the following tasks:

1. Removing various installed components to decrease the weight of the dial shelf

2. Installing the forward rack-mounting brackets

3. Rack-mounting the dial shelf

4. Installing the rear rack-mounting brackets

5. Replacing the dial shelf components you removed


Note      Use this document in conjunction with the Cisco AS5800 Universal Access Server Hardware Installation and Configuration Guide, the Cisco 7206 Installation and Configuration Guide, and the Cisco AS5800 Universal Access Server Regulatory Compliance and Safety Information document that shipped with your Cisco AS5800 Universal Access Server.


Document Contents

The following sections are included in this document:

If You Need More Information

For information regarding the Cisco AS5800 Universal Access Server that is beyond the scope of this document or for additional information, use the following resources:

  • For Cisco AS5800 Universal Access Server hardware installation and maintenance information, refer to the Cisco AS5800 Universal Access Server Hardware Installation and Configuration Guide (Document Number DOC-AS5800-HICG=) that shipped with your system.
  • For Cisco AS5800 Universal Access Server software installation and configuration, refer to the Cisco AS5800 Universal Access Server Software Installation and Configuration Guide (Document Number DOC-AS5800-SICG=) that shipped with your system.
  • For international agency compliance, safety, and statutory information for wide-area network (WAN) interfaces for the Cisco AS5800 Universal Access Server, refer to the document Cisco AS5800 Universal Access Server Regulatory Compliance and Safety Information (Part Number 78-4666-xx) that shipped with your system.
  • To obtain general information about documentation, refer to the section "Cisco Connection Online," or call customer service at 800 553-6387, or 408 526-7208. Customer service hours are 5:00 a.m. to 6:00 p.m., Pacific time, Monday through Friday (excluding Cisco-observed holidays). You can also send e-mail to cs-rep@cisco.com, or you can refer to the Cisco Information Packet that shipped with your system.
  • Cisco Documentation CD-ROM package

Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly; therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.

If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback on the toolbar, and then select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.

  • For additional Cisco IOS software information, refer to the following modular configuration and modular command reference publications, as appropriate for your configuration:
    • Configuration Fundamentals Configuration Guide
    • Configuration Fundamentals Command Reference
    • Dial Solutions Configuration Guide
    • Wide-Area Networking Configuration Guide
    • Wide-Area Networking Command Reference
    • Network Protocols Configuration Guide
    • Network Protocols Command Reference
    • Configuration Builder Getting Started Guide
    • Troubleshooting Internetworking Systems
    • Debug Command Reference
    • System Error Messages
    • Cisco IOS Software Command Summary
    • Cisco Management Information Base (MIB) User Quick Reference

Cisco AS5800 Universal Access Server Overview

The Cisco AS5800 Universal Access Server is a high-density, ISDN and modem WAN aggregation system that provides both digital and analog call termination. It is intended to be used in service provider dial point-of-presence (POP), or centralized enterprise dial environments. The Cisco AS5800 Universal Access Server chassis components include a Cisco 5814 dial shelf and a Cisco 7206 router shelf. An optional AC power shelf is also available.

The dial shelf and router shelf are bundled, and can be ordered to support either AC or DC power. Included in the dial shelf is a blower assembly, filter module, and power entry modules (PEMs). Also included in the bundled system are ingress trunk cards, modem cards, dial shelf controller cards, Flash memory PCMCIA cards, cables, and Cisco IOS software. The dial shelf feature cards and host router shelf communicate via a dial shelf interconnect cable.

In a typical Cisco AS5800 Universal Access Server rack-mount configuration, you mount both the dial shelf and the router shelf together in a rack. The router shelf supports the dial shelf and performs all call routing and packet processing. The router shelf also houses the main system software images.

This document contains instructions for rack-mounting the dial shelf only. Router shelf rack-mounting instructions are found in the Cisco 7206 Installation and Configuration Guide that shipped with your router shelf.

Figure 1 shows a front view of a fully configured Cisco AS5800 Universal Access Server, and Figure 2 shows a rear view.


Figure 1   Cisco AS5800 Universal Access Server—Front View



Figure 2   Cisco AS5800 Universal Access Server—Rear View


Cisco 5814 Dial Shelf Overview

The dial shelf is a 14-slot chassis that can support up to 10 modem cards, up to 6 trunk cards, and up to 2 dial shelf controller cards (in the future). In a dial shelf configuration using 10 modem cards and 2 trunk cards, the dial shelf is capable of terminating 720 simultaneous analog and/or digital calls.

In a typical system configuration using DC power, you install the dial shelf, the largest of the system components, first. The dial shelf chassis fits in a standard 19-inch, 4-post or standard 2-post telco equipment rack.

Figure 3 shows 10 modem cards, 2 trunk cards, and 2 dial shelf controller cards installed in a fully configured Cisco 5814 dial shelf chassis.


Figure 3   Cisco 5814 Dial Shelf Chassis Fully Configured


Safety Guidelines

This section provides safety guidelines to help you avoid injury to yourself and avoid damage to the equipment. The following safety guidelines are recommended when working with any equipment that connects to electrical power or telephone wiring:

  • Locate the emergency power-off switch for the room in which you are working before beginning any procedures requiring access to the chassis interior.
  • Disconnect all power and external cables before moving a chassis.
  • Never work alone if potentially hazardous conditions exist.
  • Never assume that power has been disconnected from a circuit; always check.
  • Never perform any action that creates a potential hazard to people or makes the equipment unsafe.
  • Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.
  • A 60-ampere DC circuit breaker is recommended for the input DC power source. This circuit breaker should protect against short-circuit and overcurrent faults in accordance with United States National Electrical Code NFPA 70 (United States), Canadian Electrical Code, part I, C22.1 (Canada), and IEC 364 (other countries).
  • Only a DC power source that complies with the Safety Extra-Low Voltage (SELV) requirements in UL1950, CSA 950, EN 60950, and IEC950 can be connected to the DC-input power supply.
  • A readily accessible disconnect device must be incorporated in the fixed wiring.
  • This unit is to be installed in a restricted access area in accordance with articles 110-16, 110-17, and 110-18 of the National Electric Code, ANSI/NFPA 70.

Lifting Safety

A fully configured dial shelf weighs approximately 278 lb (126.1 kg). The chassis is not intended to be moved frequently. Before you install the dial shelf, ensure your site is properly prepared, so you can avoid having to move the chassis to accommodate power sources and network connections. (See the Cisco AS5800 Universal Access Server Hardware Installation and Configuration Guide for site requirement guidelines.)

If you will be installing the dial shelf without using a forklift or other mechanical lifting device, you must first remove the blower assembly, the feature cards, and dial shelf controller cards from the chassis and have someone help you with the dial shelf installation. (See the section "Preparing to Rack-Mount the Dial Shelf.") The instructions contained in this document are for installing the Cisco 5814 in a rack without using a forklift.


Two people are required to lift the chassis. Use the handles on the chassis sides. To prevent injury, keep your back straight and lift with your legs, not your back. To prevent damage to the chassis and components, never attempt to lift the chassis with the handles on the power supplies, the filter module, or on the blower assembly. These handles are not designed to support the weight of the chassis.

Whenever you lift any heavy components manually, follow these guidelines:

  • Always have a second person available to help lift the component; never lift the component alone.
  • Ensure that your footing is solid and balance the weight of the object between your feet.
  • Lift the chassis slowly; never move suddenly or twist your body as you lift.
  • Keep your back straight and lift with your legs, not your back. If you must bend down to lift the assembly, bend at the knees, not at the waist, to reduce the strain on your lower back muscles.

Safety Warnings

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. To see translations of safety warnings pertaining to the Cisco AS5800 Universal Access Server, refer to the Regulatory Compliance and Safety Information document that shipped with your system.


This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Waarschuwing  Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.

Varoitus  Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).

Attention  Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d'avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.

Warnung  Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.

Avvertenza  Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.

Advarsel  Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.

Aviso  Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information (Informação de Segurança e Disposições Reguladoras) que acompanha este dispositivo.

¡Advertencia!  Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. Para ver una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.

Varning!  Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. Se förklaringar av de varningar som förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.

Rack-Mounting Considerations

In a typical rack-mount configuration, you mount both the dial shelf and the router shelf together in a rack with the dial shelf mounted below the router shelf. We do not recommend you separate the dial shelf from the router shelf when configuring the hardware for this system; however, a 20-foot interconnect cable is available if you need to install the router shelf in an adjacent rack. If you are using AC-input power, you mount the AC-input power shelf below the dial shelf.

There is no clearance requirement for mounting the router shelf directly above the dial shelf; however, if you install anything other than a Cisco 7206 router shelf above the dial shelf, follow the appropriate clearance requirements for the unit you install.

You can stack two access servers in a single rack; however, you must leave a minimum clearance of one rack unit between the two systems.

You must install the AC-input power shelf one rack unit, 1.75 in. (4.28 cm) below the dial shelf to accommodate the DC power cables, the monitor cable, the grounding cable, and the required safety cover.


Note      One rack unit (1.75 in. or 4.4 cm) is the maximum distance between the dial shelf and the AC-input power shelf that still accommodates the required safety cover.


Some equipment racks provide a power strip along the length of one of the mounting strips. If your rack has a power strip, consider the position of the strip when planning fastener points to ensure that you will be able to slide feature cards and dial shelf controller cards straight out of their respective slots. If the power strip does impair a rack-mount installation, remove the power strip before installing the dial shelf in the rack, then replace it after the dial shelf is installed.

Figure 4 shows a typical 19-inch 4-post equipment rack with a power strip along one of the back posts.


Figure 4   Typical 19-Inch Equipment Rack Posts and Mounting Strips


To use the rack-mounting hardware provided with your Cisco 5814 dial shelf, consider the following guidelines:

  • To mount the dial shelf between two 19-inch posts or rails, the inner clearance (the width between the inner sides of the two posts or rails) must be at least 17.5 in. (44.45 cm).
  • The height of the dial shelf is 28 in. (71.12 cm).
  • When mounting the dial shelf in 4-post or telco racks, be sure to use all the screws and brackets provided to secure the chassis to the rack posts.

When planning your rack installation, consider the following guidelines:

  • Install the forward rack-mount brackets (if needed for your rack configuration) before you install the dial shelf in the rack; then install the rear brackets.
  • Install the dial shelf in an open rack whenever possible. If installation in a cabinet is unavoidable, ensure that the cabinet has adequate ventilation.

To prevent the dial shelf from overheating, never install your Cisco AS5800 Universal Access Server in a cabinet or room that is not properly ventilated or air conditioned.
  • Allow sufficient clearance around the rack for maintenance. You need 24 in. (61 cm) clearance to remove and replace system components.
  • Always install heavier equipment in the lower half of a rack to maintain a low center of gravity and prevent the rack from falling over.

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:
    • This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
    • When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.
    • If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.
  • If you use telco racks, be sure that the rack is bolted to the floor and secured, because in these types of installations only one end of the dial shelf mounts to the two rack posts. Ensure that the weight of the dial shelf does not make the rack unstable.
  • When connecting the dial shelf (or the optional AC-input power shelf) to the site power source (supply circuit), take care not to overload the wiring.

Care must be given to connecting units to the supply circuit so that wiring is not overloaded.
  • Ensure that the dial shelf is connected to earth ground during normal use.

This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use.
  • If you plan to use an equipment shelf, ensure that the shelf is constructed to support the weight and dimensions of the dial shelf. Figure 5 shows the dial shelf footprint, which you will need if you are designing a customized shelf. We recommend that you use the rack-mount kit designed for your Cisco 5814 dial shelf.

Figure 5   Cisco 5814 Footprint and Outer Dimensions



To prevent the rack from tipping when installing the router in telco racks, ensure that the rack is bolted to the floor and, if necessary, anchored with appropriate fixtures.

To maintain a low center of gravity, ensure that heavier equipment is installed near the bottom of the rack.

Preparing to Rack-Mount the Dial Shelf

The Cisco 5814 dial shelf is shipped with the blower assembly and all feature cards (trunk and modem cards) and dial shelf controller card(s) installed in the chassis. Fully loaded, the dial shelf weighs 278 lb (126.1 kg).

Before installing the Cisco 5814 in an equipment rack, we recommend that you remove the blower assembly, feature cards, and dial shelf controller card(s) from the dial shelf, then reinstall them after the dial shelf is mounted in the rack. (If you are using a fork lift or other machinery to lift the dial shelf, you might want to omit this step.)

After you remove the blower assembly and the installed cards, you will mount the rack-mount brackets on the dial shelf chassis and install the dial shelf in the rack.

Required Tools and Parts

You will need the following parts and tools to rack-mount your dial shelf:

  • ESD-preventive wrist strap
  • Number 2 Phillips screwdriver for bracket installation
  • 1/4-inch flat-blade screwdriver for rack installation
  • Tape measure (optional)
  • Level (optional)

The rack-mount kit includes the following parts:

  • 6 rack-mount brackets for mounting the dial shelf in the rack
  • 2 support brackets
  • 12 M5 x 10-mm Phillips, flathead screws to secure the rack-mount brackets to the dial shelf
  • 16 slotted 10-32 x 3/8 screws for rack installation

Removing the Blower Assembly


The blower assembly weighs 27.5 lb (12.5 kg). Use two hands when removing or replacing the blower assembly.

To remove the blower assembly, complete the following steps:


Step 1   Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.

Step 2   Loosen the two captive screws on the blower assembly front panel. (See Figure 6.)

Step 3   Grasp the blower assembly handle with one hand and pull the blower assembly straight toward you about half way out of the slot. (See Figure 6.)

Step 4   Place your other hand under the blower assembly as it extends from the dial shelf chassis.

Step 5   Slowly pull the blower assembly all the way out of the slot and set it aside until you are ready to reinstall it.


Figure 6   Removing and Replacing the Blower Assembly


Removing Feature Cards and Dial Shelf Controller Cards

To remove the feature cards and dial shelf controller cards, follow these steps:


Trunk cards and modem cards weigh 8 lb (3.3 kg) each. Dial shelf controller cards weigh 8.5 lb (3.8 kg) each. Use two hands when removing or replacing cards in the dial shelf.

Step 1   Record the original position of each card before you remove the cards from the dial shelf slots. Refer to this information when you reinstall the cards.

Step 2   Attach an ESD-preventive wrist strap between you and an unpainted chassis surface.


To prevent ESD damage, handle trunk cards by ejector levers and carrier edges only, and use an ESD-preventive wrist strap or other grounding device.

Step 3   Loosen the panel fasteners at the top and bottom of the card front panel using a number 2 Phillips screwdriver.

Step 4   Pull either the upper or lower ejector lever away from the card front panel to disengage the card from the backplane connector, as shown in Figure 7.


Always use the ejector levers when disengaging or seating the trunk cards, modem cards, or dial shelf controller cards in the dial shelf backplane. Failure to do so can cause erroneous system error messages, indicating a card failure. However, do not use the ejector levers to lift or support the weight of the cards.

Figure 7   Using the Ejector Levers


Step 5   Grasp the ejector levers and pull the card partially out of the dial shelf slot until you can grasp the card front panel with one hand. Place your other hand under the card to balance the weight of the card as you pull it out of the slot. (See Figure 8.)


Figure 8   Removing Feature Cards and Dial Shelf Controller Cards


Step 6   Pull the card straight out of the slot. Avoid touching the circuitry or any connector pins.

Step 7   Place the removed card on an antistatic mat or foam pad until you are ready to reinstall it in the chassis.

Step 8   Repeat Step 3 through Step 7 for all remaining cards in the dial shelf chassis.

You are now ready to install the rack-mount brackets on the chassis. Proceed to the section "Installing the Rack-Mount Brackets on the Chassis."

Installing the Rack-Mount Brackets on the Chassis

Bracket placement depends on the type of rack you use to install your access server. This section describes both a 4-post rack installation and a telco rack installation.

Threaded holes on the chassis sides are strategically located to position and mount bracket hardware. The dial shelf also has an afixed mounting flange in front for flush-front mounting. If you are mounting the dial shelf in a 4-post rack, you have the option of using two brackets (one on each side) placed toward the lower rear of the chassis (see Figure 9, position d) to support the chassis in the back. If you are mounting the dial shelf in a telco rack, you need to offset the dial shelf five inches beyond the rack center post and use six brackets (three on each side) at positions a, b, and c as shown in Figure 9.


Figure 9   Dial Shelf Bracket Mounting Hole Positions


If you are installing your access server in a telco rack, proceed to the section "Mounting Forward Brackets for an Offset Telco Rack Installation."

If you are installing your access server in a 4-post rack, you do not need to install brackets on the chassis front; use the permanent metal flanges on the chassis front to install the dial shelf in the rack. (See Figure 9.) Proceed to the section "Installing the Dial Shelf in the Rack."

Mounting Forward Brackets for an Offset Telco Rack Installation

To install the forward rack-mount brackets on the dial shelf for an offset telco rack-mount configuration, complete the following steps:


Step 1   Locate the forward upper and lower threaded holes on the right side of the chassis. (See Figure 9, positions a and b.)

Step 2   Align one rack-mount bracket with a set of forward-upper threaded holes (Figure 9, position a) in the orientation shown in Figure 10, position a.

Step 3   Thread two M5 x 10mm Phillips, flathead screws through the bracket and into the side of the chassis. Tighten the screws using a number 2 Phillips screwdriver.

Step 4   Align the second rack-mount bracket with the forward-lower position threaded holes in the orientation shown in Figure 10, position b.

Step 5   Fasten the bracket to the chassis using two screws, as described in Step 3.

Step 6   Repeat Step 1 through Step 5 to mount the two forward brackets on the left side of the chassis.


Figure 10   Positioning the Rack-Mount Brackets for an Offset Telco Rack Installation


You are now ready to install the dial shelf in the rack. Proceed to the section "Installing the Dial Shelf in the Rack."

Installing the Dial Shelf in the Rack

To secure the rack-mount brackets to the posts or mounting strips in the rack, you must use the slotted mounting screws provided. Because the brackets support the entire weight of the chassis, be sure to use at least two slotted screws per bracket.

To install the dial shelf chassis in the rack, complete the following steps:


To prevent injury, review the safety precautions in the section "Safety Guidelines" before installing the dial shelf in the rack.

Step 1   Verify your path to the rack is unobstructed and ensure the rack is stabilized.

Step 2   Attach one support bracket to each front post or mounting strip using the provided slotted screws and a 1/4-inch, flat-blade screwdriver. Ensure that the support brackets are level. (See Figure 12 and Figure 11.)

Step 3   Position the dial shelf chassis in front of the rack.


Two people are required to lift the chassis. Use the handles on the chassis sides. To prevent injury, keep your back straight and lift with your legs, not your back. To prevent damage to the chassis and components, never attempt to lift the chassis with the handles on the power supplies, the filter module, or on the blower assembly. These handles are not designed to support the weight of the chassis.

Step 4   Lift and slide the dial shelf chassis into the rack, resting it upon the two support brackets. Push it back until the forward brackets or chassis mounting flanges meet the mounting strips or posts on both sides of the equipment rack.


Note The brackets will support the chassis until you complete the installation. Removing the support brackets is optional. If you leave the brackets installed, they can be used as spacers between the dial shelf and the optional AC-input power shelf.


Step 5   Insert the 10-32 x 3/8-inch slotted screws (two screws per bracket) through the brackets (or chassis mounting flange) and into the mounting strip. Tighten all the screws using a 1/4-inch flat-blade screwdriver.


Note Because the brackets support the weight of the entire chassis, be sure to use at least two slotted screws per bracket.


To complete the dial shelf rack installation, you must mount the rear set of brackets to the chassis. Proceed to the section "Mounting the Rear Brackets."

Mounting the Rear Brackets

This section explains how to mount the rear brackets for telco and 4-post rack installations.


Note      You must mount the rear brackets after you install the dial shelf in the rack.


Telco Rack—Rear Bracket Installation

For a telco rack-mount installation, mount the rear bracket as follows:


Step 1   Align one rear bracket to the lower center position threaded holes in the chassis side (see Figure 9, position c) with the bracket flange against the center post.

Step 2   Thread two M5 x 10mm Phillips, flathead screws through the bracket and into the side of the chassis.

Step 3   Tighten the screws using a number 2 Phillips screwdriver.

Step 4   Repeat Step 1 through Step 3 to mount the rear bracket on the other side of the chassis.

Step 5   Insert the 10-32 x 3/8-inch slotted screws (two screws per bracket) through the brackets and into the equipment rack-mounting strip. Tighten all the screws using a 1/4-inch flat-blade screwdriver.

Figure 11 shows a dial shelf installed in a telco rack. Bracket positions labeled "a", "b", and "c" correspond to Figure 10, positions a, b, and c.


Figure 11   Cisco 5814 Dial Shelf Installed in a Telco Rack


This completes the dial shelf rack-mounting procedures for a telco rack. Proceed to the section "Replacing the Dial Shelf Components."

4-Post Rack—Rear Bracket Installation

For a 4-post rack-mount installation, mount the optional rear brackets to the sides of the chassis as follows:


Step 1   Align one bracket to the lower-rear position threaded holes in the chassis side (Figure 9, position d) with the bracket flange against the mounting strip or rack post as shown in Figure 12(d).

Step 2   Thread two M5 x 10mm Phillips flathead screws through the bracket and into the side of the chassis.

Step 3   Tighten the screws using a number 2 Phillips screwdriver.

Step 4   Repeat Step 1 through Step 3 to mount the rear bracket on the other side of the chassis.

Step 5   Position the rear equipment rack-mounting strips flush with the dial shelf chassis rear rack-mounting brackets and secure the strips in the equipment rack.

Step 6   Insert the 10-32 x 3/8-inch slotted screws (two screws per bracket) through the brackets and into the equipment rack-mounting strip. Tighten all screws using a 1/4-inch flat-blade screwdriver.


Figure 12   Cisco 5814 Dial Shelf Installed in a 4-Post Rack


This completes the dial shelf rack-mounting procedures for a 4-post rack. Proceed to the section "Replacing the Dial Shelf Components."

Replacing the Dial Shelf Components

This section contains instructions for replacing the dial shelf components.

Replacing the Blower Assembly

Replace the blower module in the dial shelf as follows:


The blower assembly weighs 27.5 lb (12.5 kg). Use two hands when removing or replacing the blower assembly.

Step 1   Place one hand on the blower assembly handle and place your other hand under the blower assembly. (Refer to Figure 6.)

Step 2   Align the blower assembly with the chassis opening and slide the blower assembly into the dial shelf chassis.

Step 3   Push the blower assembly all the way into the dial shelf chassis until the connector on the rear of the blower assembly is fully seated in the chassis.

Step 4   Tighten the two captive thumbscrews on the blower assembly front panel.


Note      All electrical connections are fully operative when the connectors mate.


Replacing the Feature Cards and Dial Shelf Controller Card(s)

Replace the trunk cards, modem cards and dial shelf controller cards in the chassis as follows:


Your dial shelf arrived with trunk cards, modem cards and dial shelf controller cards installed in the proper slots. You can refer to your original configuration notes when replacing cards in the dial shelf chassis.

If you did not note the original card configuration, replace the cards in the dial shelf slots, which are numbered from left to right, as follows:

  • Trunk cards must be installed in slots numbered 0-5 beginning with slot 0.
  • Modem cards can be installed in slots numbered on the backplane as slots 2-11.
  • Dial shelf controller cards must be installed in slots numbered on the backplane as slots 12 and slot 13. A single dial shelf controller card can be installed in either slot 12 or slot 13.

Trunk cards and modem cards weigh 8 lb (3.6 kg) each. Dial shelf controller cards weigh 8.5 lb (3.8 kg) each. Use two hands when removing or replacing cards in the dial shelf.

Step 1   Ensure your ESD-preventive wrist strap is attached between you and an unpainted chassis surface.


To prevent ESD damage, handle trunk cards by ejector levers and carrier edges only, and use an ESD-preventive wrist strap or other grounding device.

Step 2   Carefully align the card carrier guides with top and bottom grooves in the slot. Avoid touching the circuitry or any connector pins.

Step 3   Slide the carrier into the slot until the ejector levers make contact with the chassis frame. (Refer to Figure 7.)

Step 4   Seat the card in the backplane by pushing the card firmly until the ejector levers fold in toward the trunk card front panel, and the front panel is flush with the chassis frame.


Always use the ejector levers when disengaging or seating trunk cards, modem cards, or dial shelf controller cards in the dial shelf. Failure to do so can cause erroneous system error messages, indicating a card failure. However, do not use the ejector levers to lift or support the weight of the cards.

Step 5   Tighten the panel fasteners on the top and bottom of the card front panel using a number 2 Phillips screwdriver. This prevents the card from becoming partially dislodged from the backplane and ensures proper EMI shielding.


Always tighten the panel fasteners on trunk cards, modem cards, and dial shelf controller cards. These fasteners prevent accidental removal and provide proper grounding for the system.

Step 6   Repeat Step 3 through Step 5 for all remaining cards you want to install.


To avoid erroneous failure messages, remove or insert only one trunk card at a time. Also, after inserting or removing a trunk card, allow at least 15 seconds before removing or inserting another trunk card so that the system can reinitialize and note the current configuration of all interfaces.

Step 7   Install a blank filler card (DS58-BLANK=) in all empty card slots to keep the chassis dust free and to maintain proper airflow.


To prevent the overheating of internal components, always install blank filler cards in empty slots to maintain the proper flow of cooling air across the cards.

Grounding the Dial Shelf

The Cisco 5814 dial shelf ships with a double ground lug attached to two pemnuts in the upper left corner on the rear of the dial shelf chassis. To ground the dial shelf, follow these steps:


When installing the unit, the ground connection must always be made first and disconnected last.

Step 1   Locate the dial shelf ground lug (see Figure 2) and unscrew it from the chassis using a 1/4-inch flat-blade screw driver. Save the screws.

Step 2   Attach the double ground lug to your own 6 gauge ground wire.

Step 3   Fasten the ground lug to the dial shelf chassis using the screws you removed.

This completes the procedure for installing the dial shelf in a rack. If you have questions or need assistance, proceed to the section "Cisco Connection Online."

Cisco Connection Online

Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional content and services.

Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.

CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously—a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.

You can access CCO in the following ways:

For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.


Note      If you are a network administrator and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract, contact Cisco's Technical Assistance Center (TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. To obtain general information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387, 408 526-7208, or cs-rep@cisco.com.