Banner
HomeTOCPrevNextGlossSearchHelp

Table of Contents

Preparing for Installation

Preparing for Installation

Preparing for Installation

This chapter describes the equipment and site requirements for installing the LightStream 1010 Asynchronous Transfer Mode (ATM) switch, ATM switch processor (ASP), carrier modules (CAMs), and port adapter modules (PAMs). It includes the power and cabling requirements that must be in place at the installation site and describes additional equipment you will need to complete the installation and the environmental conditions your site must meet to maintain normal operation. Instructions for unpacking the system and additional equipment are provided in the document Unpacking Instructions, which is attached to the outside of the shipping container.

This chapter includes information about the following preinstallation requirements:

Warning Read the installation instructions before you connect the system to its power source. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

fig_10.gif Warning Only trained and qualified personnel should be allowed to install or replace this equipment. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."


Safety Recommendations

The following guidelines will help to ensure your safety and protect the equipment. This list is not inclusive of all potentially hazardous situations that you may be exposed to as you install the switch, so be alert.

Warning Metal objects heat up when connected to power and ground, and can cause serious burns. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

fig_7.gif Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

fig_9.gif Warning This unit might have more than one power cord. To reduce the risk of electric shock, disconnect the two power-supply cords before servicing the unit. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."


Safely Lifting the Chassis

The switch chassis weighs 32 pounds (13.6 kilograms) when empty (no PAMs or power supplies installed) and 67 pounds (30 kilograms) with two power supplies and PAM carriers installed. The chassis is not intended to be moved frequently. Before you install the switch, ensure that your site is properly prepared so you can avoid having to move the chassis later to accommodate power sources and network connections.

Two people are required to lift the chassis. Whenever you lift the chassis or any heavy object, follow these guidelines:

Caution Never attempt to lift an object that may be too heavy for you to lift safely.

fig_16.gif Warning Never attempt to lift the chassis with the handles on the power supplies or the switching modules. These handles are not designed to support the weight of the chassis. Using them to lift or support the chassis can result in severe damage to the equipment and serious bodily injury. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

  • Leave PAMs, power supplies, and fan assembly installed.

  • Always disconnect all external cables before lifting or moving the chassis.

Figure 3-1 : Unsafe Lifting Practice

h1369.gif


Safety with Electricity

The CAMs, PAMs, and redundant (second) power supplies are designed to be removed and replaced while the system is operating without presenting an electrical hazard or damage to the system. Before removing a redundant power supply, ensure that the first supply is powered on and the powered supply being removed is power off. However, you must shut down the system before removing or replacing the ASP. Never install equipment that appears to be damaged.

Follow these basic guidelines when working with any electrical equipment:

  • Before beginning any procedures requiring access to the chassis interior, locate the emergency power-off switch for the room in which you are working.

  • Disconnect all power and external cables before installing or removing a chassis.

  • Do not work alone when potentially hazardous conditions exist.

  • Never assume that power has been disconnected from a circuit; always check.

  • Do not 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.

In addition, use the guidelines that follow when working with any equipment that is disconnected from a power source but still connected to telephone wiring or other network cabling.

fig_17.gif Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

  • Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

  • Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

  • Use caution when installing or modifying telephone lines.


Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are improperly handled, can result in complete or intermittent failures. The ASP and PAMs each consist of a printed circuit card that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding, connectors, and a handle are integral components of the carrier. Although the metal carrier helps to protect the cards from ESD, use a preventive antistatic strap whenever you handle the ASP or PAMs. Handle the carriers by the handles and the carrier edges only; never touch the cards or connector pins.

fig_18.gif Caution Always tighten the captive installation screws on the ASP and PAMs when you are installing them. These screws prevent accidental removal of the ASP, CAMs, and PAMs, provide proper grounding for the system, and help to ensure that the bus connectors are properly seated in the backplane.

Following are guidelines for preventing ESD damage:

  • Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact.

  • When removing any module, connect the equipment end of the strap to one of the captive installation screws on an installed PAM or power supply. (See Figure 3-2.)

Figure 3-2 : Placement of Electrostatic Discharge Wrist Strap

h5604.gif

  • Handle carriers by the faceplates and carrier edges only; avoid touching the card or any connector pins.

  • When removing a module, place the removed module component-side-up on an antistatic surface or in a static shielding bag. If the module will be returned to the factory, immediately place it in a static shielding bag.

  • Avoid contact between the modules and clothing. The wrist strap protects only the card from ESD voltages on the body; ESD voltages on clothing can still cause damage.

    fig_19.gif

Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms).


Site Requirements

This section discusses the site environment requirements for the switch chassis.


AC Power

The 350W, AC-input power supply uses a power factor corrector (PFC) that allows it to operate on input voltage and current within the ranges of 100 to 240 VAC and 47 to 63 Hz.

A second, identical power supply is also present in chassis configured with the redundant power option. Redundant power ensures that power to the chassis continues uninterrupted in the event that one power supply fails. It also provides uninterrupted power in the event that one power line fails; the redundant power supply operates only if the power supplies are connected to separate input lines. Table A-1 in the appendix "System Specifications" lists system power specifications, including input voltage and operating-frequency ranges.

fig_2.gif Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase conductors (all current-carrying conductors). To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

fig_3.gif Warning Care must be given to connecting units to the supply circuit so that wiring is not overloaded. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

Note the power consumption rating in Table A-1 in the appendix "System Specifications" for each unit before it is connected.

fig_4.gif Caution The power outlet must be installed near the equipment and must be easily accessible. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

fig_5.gif Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."


Plant Wiring

Following are guidelines for setting up the plant wiring and cabling at your site. When planning the location of the new system, consider the distance limitations for signaling, EMI, and connector compatibility.


Interference Considerations

When wires are run for any significant distance in an electromagnetic field, interference can occur between the field and the signals on the wires. This fact has two implications for the construction of plant wiring:

  • Bad plant wiring can result in radio frequency interference (RFI).

  • Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the signal drivers and receivers in the switch, and can even create an electrical hazard by conducting power surges through lines and into equipment. (Review the safety warnings in the section "Safety with Electricity" earlier in this chapter.)

Note To predict and remedy strong EMI, you may need to consult experts in RFI.

If wires exceed recommended distances, or if wires pass between buildings, give special consideration to the effect of a lightning strike in your vicinity. The electromagnetic pulse (EMP) caused by lightning or other high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic devices. If you have had problems of this sort in the past, you may want to consult experts in electrical surge suppression and shielding.

Most data centers cannot resolve the infrequent but potentially catastrophic problems just described without pulse meters and other special equipment. These problems can cost a great deal of time to identify and resolve, so take precautions by providing a properly grounded and shielded environment, paying special attention to issues of electrical surge suppression.


Distance Limitations

The length of your networks and the distances between connections depend on the type of signal, the signal speed, and the transmission media (the type of cabling used to transmit the signals). For example, fiber-optic cable has a greater channel capacity than twisted-pair cabling.

Note The distances and rate limits in this chapter are the IEEE-recommended maximum speeds and distances for signaling. However, you may get good results at speeds and distances far greater than these if you understand the electrical problems that might arise and can compensate for them. However, do so at your own risk.

The following distance limits are provided as guidelines for planning your network connections before installation.


ATM Connections

The maximum distances for ATM network segments and connections depend on the type of transmission cable used, for example, unshielded twisted-pair (UTP), single-mode (SM), or multimode (MM) fiber-optic cable.

Networking standards set recommended maximum distances between stations using fiber-optic and UTP cable. The recommended maximum cable lengths are listed in Table 3-1.

Table 3-1 : ATM Maximum Transmission Distances

Transceiver Speed Cable Type Maximum Distance between Stations
155 Mbps Category 5 UTP 328 feet (100 meters)
155 Mbps Single-mode fiber 9 miles (15 km)
155 Mbps Multimode fiber 1.2 miles (2 km)
622 Mbps Single-mode fiber 9 miles (15 km)
622 Mbps Multimode fiber 1,640 feet (500 meters)
45 Mbps Coaxial cable 450 feet (137 meters)
34 Mbps Coaxial cable 450 feet (137 meters)

Table 3-1 provides guidelines for planning maximum cable spans. For detailed calculations of dispersion and power budget limits, refer to the, Technician's Guide to Fiber Optics, written by D. Sterling, published by Delmar Publishers, 1993.


For Further Reference

The following publications contain information on determining attenuation and power budget:

  • T1E1.2/92-020R2 ANSI, the Draft American National Standard for Telecommunications entitled "Broadband ISDN Customer Installation Interfaces: Physical Layer Specification."

  • Power Margin Analysis, AT&T Technical Note, TN89-004LWP, May 1989.


Serial Connections

Serial signals can travel a limited distance at any given bit rate; generally, the slower the baud rate, the greater the distance. Table 3-2 shows the standard relationship between baud rate and distance for EIA/TIA-232 signals.

Table 3-2 : IEEE Standard EIA/TIA-232 Transmission Speed Versus Distance

Rate (bps) Distance (feet) Distance (meters)
2400 200 60
4800 100 30
9600 50 15
19200 25 7.6
38400 12 3.7
56000 8.6 2.6


Equipment Racks

A standard rack-mount kit is provided for mounting the switch in a standard 19-inch equipment rack. The rack-mount kit is not suitable for use with telco-type equipment racks, or those with obstructions (such as a power strip) that could impair access to the PAMs and power supplies. Figure 3-3 show the chassis footprint and outer dimensions.

Figure 3-3 : Chassis Footprint and Outer Dimensions

h5605.gif

To use the standard rack-mount kit, your equipment rack must meet the following requirements:

  • The width of the rack, between the two front mounting strips or rails, must be 17.75 inches (43.13 cm).

  • The depth of the rack, between the front and rear mounting strips, must be at least 19.25 inches (48.2 cm) but not more than 32 inches (80 cm).

  • The height of the chassis is approximately 10.4 inches (26.4 cm). The rack must have sufficient vertical clearance to insert the chassis.

When planning your rack installation, consider the following guidelines:

  • Allow at least 3 to 4 feet of clearance in front of the rack for maintenance and removal of ASP, CAMS, PAMs, power supplies, and the fan assembly.

  • The ports for cooling air are located on the front, rear, and both sides of the chassis, so multiple switches can be rack-mounted with little or no vertical clearance. However, avoid placing the switch in an overly congested rack.

  • Consider the equipment and cabling that is already installed in the rack. Ensure that cables from other equipment will not obstruct the airflow through the chassis or impair access to the power supplies or PAMs. Route cables away from field-replaceable components to avoid having to disconnect cables unnecessarily to perform equipment maintenance or upgrades.

  • Install heavier equipment in the lower half of the rack to maintain a low center of gravity.

  • If you plan to use an equipment shelf, ensure that the shelf is constructed to support the weight and dimensions of the chassis. Figure 3-3 shows the chassis footprint, which you will need if you are designing a customized shelf.

    fig_12.gif

Warning To prevent the switch from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 104°F (40°C). To prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around the ventilation openings. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

fig_13.gif Caution Never install the switch in an enclosed rack that is not properly ventilated or air- conditioned.

fig_14.gif Warning To prevent bodily injury when mounting or servicing the unit in a rack, you must take special precautions to ensure that the system remains stable. To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

The following guidelines are provided to ensure your safety:

  • The unit should be mounted at the bottom of the rack if it is the only unit in the rack.

  • When mounting the 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.

  • Allow adequate space in front of the switch to allow the fiber-optic cable minimum bend radius 3.0 inches (7.6 centimeters).

  • The LightStream 1010 switch must always be mounted horizontally, as shown in Figure 4-3.

In addition to the preceding guidelines, review the precautions for avoiding overtemperature conditions in the section "Equipment-Rack Ventilation" later in this chapter.


Site Environment

The switch operates as a standalone system mounted in a rack in a secure wiring closet. It requires a dry, clean, well-ventilated, and air-conditioned environment. An internal fan assembly pulls cooling air through the chassis from the front and right side (intake) to the rear and left side (exhaust) when facing the front of the system. (See Figure 2-23.) The flow of ambient air must be maintained to ensure normal operation. If the airflow is blocked or restricted, or if the intake air is too warm, an overtemperature condition can occur. Under extreme conditions, the environmental monitor will shut down the system to protect the system components.

To ensure normal operation and avoid unnecessary maintenance, plan your site configuration and prepare your site before installation. After installation, make sure the site maintains an ambient temperature of 0 to 40°C (32 to 104°F), and keep the area around the chassis as free from dust as is practical. For a description of the environmental monitor and status levels, refer to the section "Environmental Monitoring and Reporting Functions" in the chapter "LightStream 1010 ATM Switch Hardware."

If the temperature of the room air drawn into the chassis is higher than desirable, the air temperature inside the chassis may also be too high. This condition can occur when the wiring closet or rack in which the chassis is mounted is not properly ventilated, when the exhaust of one device is placed so it enters the air intake vent of the chassis, or when the chassis is the top unit in an unventilated rack. Any of these conditions can inhibit airflow and create an overtemperature condition.

Multiple switches can be rack-mounted with little or no clearance above and below the chassis. However, when mounting a switch in a rack with other equipment or when placing it on the floor with other equipment located close by, ensure that the exhaust from other equipment does not blow into the intake vent (lower front panel) of the chassis.

Table 3-3 lists the operating and nonoperating environmental site requirements. To maintain normal operation and ensure high system availability, maintain an ambient temperature and clean power at your site. The following ranges are those within which the switch will continue to operate; however, a measurement that is approaching the minimum or maximum of a range indicates a potential problem. You can maintain normal operation by anticipating and correcting environmental anomalies before they exceed the maximum operating range.

  • Operating temperature range: 32 to 104°F (0 to 40°C)

  • Operating humidity range: 10 to 90%, noncondensing

  • Airflow: cooling air is drawn in through the right side of the chassis. Keep the right side clear of obstructions, including dust, and away from the exhaust ports of other equipment.

Table 3-3 : Specifications for Operating and Nonoperating Environments

Minimum Maximum
Temperature, ambient operating 32°F (0°C) 104°F (40°C)
Temperature, ambient nonoperating and storage --4°F (--20°C) 149°F (65°C)
Humidity (RH), ambient (noncondensing) operating 10% 90%
Humidity (RH), ambient (noncondensing) nonoperating and storage 5% 95%
Altitude, operating and nonoperating Sea level 10,000' (3050 m)
Vibration, operating 5--200 Hz, 0.5 g (1 oct./min.)
Vibration, nonoperating 5--200 Hz, 1 g (1 oct./min.)
200--500 Hz, 2 g (1 oct./min.)


Preventive Site Configuration

Planning a proper location for the switch and the layout of your equipment rack or wiring closet is essential for successful system operation. Equipment placed too close together or inadequately ventilated can cause system overtemperature conditions. In addition, chassis panels made inaccessible by poor equipment placement can make system maintenance difficult. Following are precautions that can help avoid problems during installation and ongoing operation.


General Precautions

Follow these general precautions when planning your equipment locations and connections:

  • The environmental monitor continuously checks the interior chassis environment and provides warnings for high temperature and reports any occurrences. If warning messages are displayed, take immediate action to identify the cause and correct the problem. Use the show system command regularly to check the internal system status. (Refer to the section "Environmental Monitoring and Reporting Functions" in the chapter "LightStream 1010 ATM Switch Hardware.")

  • Keep the front of the chassis free from obstructions and away from the exhaust air of other equipment. Remember that electrical equipment generates heat, and ambient room temperature alone may not be adequate to cool equipment to acceptable operating temperatures.

  • Follow ESD prevention procedures to avoid damage to equipment. Damage from static discharge can cause immediate or intermittent equipment failure.

  • Ensure that the chassis panels, PAMs, and any PAM slot fillers are in place and secure. The fan assembly directs cooling air across the PAMs and forces it out between the PAM faceplates; a loose panel allows too much air to escape and can redirect the airflow away from active PAMs.


Equipment-Rack Ventilation

If you plan to install the switch in an equipment rack, follow these precautions to avoid overtemperature conditions in addition to the guidelines that are provided in the section "Equipment Racks" earlier in this chapter:

For a functional description of the environmental monitor and the status levels, refer to the section "Environmental Monitoring and Reporting Functions" in the chapter "LightStream 1010 ATM Switch Hardware."


Power

Take the following precautions when planning power connections to the switch:


Preparing Network Connections

When preparing your site for network connections to the switch, you need to consider numerous factors related to each type of interface:

  • Type of cabling required for each type (fiber-optic, coaxial, or twisted-pair cabling)

  • Distance limitations for each signal type

  • Specific cables you need to connect each interface

  • Any additional interface equipment you need, such as transceivers, modems, channel service units (CSUs), or data service units (DSUs). Before installing the switch, have all additional external equipment and cables on hand. If you intend to build your own cables, refer to the cable pinouts in the chapter "Installing the LightStream 1010 ATM Switch." For ordering information, contact a customer service representative.


Additional and Optional Connection Equipment

To install and configure the switch, you need a terminal with an EIA/TIA-232 data terminal equipment (DTE) port and an EIA/TIA-232 data communications equipment (DCE) console cable with DB-25 plugs at one end. You can detach the terminal (and cable) after the installation and configuration procedures are complete.


Ethernet Connection Equipment

You will need an Ethernet cable with RJ-45 male connectors (Figure 3-4) between the Ethernet port and the Ethernet network. See the ASP Ethernet RJ-45 connector information in the section "Enet Port" in the chapter "LightStream 1010 ATM Switch Hardware."

Figure 3-4 : Ethernet RJ-45 Interface Cable Connectors

h1567.gif


ATM Connection Equipment

All ATM interfaces are full duplex. You must use the appropriate ATM interface cable to connect the ATM MM, SM, or UTP PAM with an external ATM network.

For fiber-optic traffic over SM or MM, use the SC-type connector (Figure 3-5) to connect the 155 MM PAM, 155 SM PAM, 622 SM PAM, and 622 MM PAM with the external ATM switch.

fig_8.gif

h3159.gif Warning Invisible laser radiation may be emitted from the aperture ports of the SM Fiber Distributed Data Interface (FDDI) card when no cable is connected. Avoid exposure and do not stare into open apertures. Following is an example of the warning label that appears on the product:

To see translated versions of this warning, refer to the appendix "Translated Safety Warnings."

Figure 3-5 : Fiber-Optic Network Interface Connector (SC Type)

h2214.gif

For UTP traffic, use the RJ-45 connector (Figure 3-6) to connect the 155 UTP PAM with the external ATM switch.

Figure 3-6 : UTP RJ-45 Interface Cable Connectors

fig_6.gif

For DS-3 and E3 connections, use the 75-ohm, RG-59, coaxial cable (Figure 3-7), which has bayonet-style, twist-lock (BNC) connectors to connect the DS-3 PAM and E3 PAM with the external ATM switch.

Figure 3-7 : Coaxial Interface Cable and BNC Connectors

h2898.gif


EIA/TIA-232 Connections

EIA/TIA-232 supports unbalanced circuits at signal speeds up to 64 kbps. The ASP console connection is a standard 25-pin D-shell connector (known as a DB-25) that is commonly used for EIA/TIA-232 connections. Figure 3-8 shows the connectors at the local end of the adapter cable. The system console port on the ASP EIA/TIA-232 connection supports only asynchronous connection.

Figure 3-8 : EIA/TIA-232 Adapter Cable Connectors, Network End

h1343.gif


Console Port Connection Equipment

The ASP contains an EIA/TIA-232 asynchronous console port (DB-25 receptacle).

When connecting a serial device, consider the cable as an extension of the switch for an external connection; therefore, use null-modem cable to connect the switch to a remote DCE device such as a modem or DSU, and use a straight-through cable to connect the switch to a DTE device such as a terminal or PC.

Before you connect a terminal to the console port, configure the terminal to match the switch console port, as follows:

  • 9600 baud

  • 8 data bits

  • No parity

  • 1 stop bit


Installation Checklist

Refer to the section "Switch Installation Checklist" (Figure B-1) in the appendix "Configuration Worksheets" to assist you with your installation and to provide a historical record of what was done, by whom, and when. Make a copy of this checklist and indicate when each procedure or verification is completed. When the checklist is completed, place it in your Site Log (Figure B-14) along with the other records for your new switch.


Unpacking and Repacking the System

Unpacking instructions are provided in the document Unpacking Instructions, which is attached to the outside of the shipping container. If you have already read the unpacking instructions and followed the procedures to unpack your LightStream 1010 ATM switch, proceed to the next section "Checking the Contents" to verify that you have received all the required components.

Note Do not discard the shipping container when you have unpacked the switch. Flatten the shipping cartons and store them with the pallet. You will need these containers if you need to move or ship the switch in the future.


Checking the Contents

Refer to the section "Switch Installation Checklist" in the appendix "Configuration Worksheets," to check the contents of the shipping container. Use the Switch Installation Checklist to create a record of your order and to ensure that you received all the components you ordered.

Take the following steps to check the contents of your LightStream 1010 ATM switch package:

Step 1 Check the contents of the accessories box against the "Switch Component Checklist" and the packing slip and verify that you received all listed equipment, including the following:

  • Switch hardware and software documentation, if ordered

  • Optional equipment that you ordered, such as network interface cables, transceivers, or special connectors

Step 2 Check the PAMs in each slot. Ensure that the configuration matches the packing list and that all the interfaces are included.

Step 3 Complete the Port Configuration Worksheet described in the section "Port Configuration Worksheets" in the appendix "Configuration Worksheets."

Step 4 Refer to the section "Site Log" in the appendix "Configuration Worksheets" and then proceed to the chapter "Installing the LightStream 1010 ATM Switch" to begin installation.


System Components

In the appendix "Configuration Worksheets," refer to the sections "Switch Installation Checklist" and "Switch Component Checklist" for lists of all standard components that are included with the switch, along with optional equipment available. Check each item on the component list. As you unpack, verify and check each item on the component list. Insert the completed checklist into the Site Log (described in the section "Switch Installation Checklist" in the appendix "Configuration Worksheets").


Repacking the System

In the event that you need to return or move the LightStream 1010 ATM switch, the following instructions describe repacking the switch using the original packaging material:

Step 1 Set the LightStream 1010 ATM switch in the bottom pallet. (See Figure 3-9.)

Step 2 Place the top packing material over the top of the LightStream 1010 ATM switch.

Step 3 Place both accessory boxes on the top packing material.

Step 4 Place the outside carton over the entire package.

Step 5 Fold the outside carton down over the top of the accessory boxes and seal with packing tape.

Figure 3-9 : LightStream 1010 ATM Switch Packing Material

h5739.gif

Step 6 Wrap two packaging straps tightly around the top and bottom of the package to hold the outside carton and the bottom pallet together. (See Figure 3-10.)

Figure 3-10 : LightStream 1010 ATM Switch Final Package

h3107.gif

Note Do not use tape to hold the outside carton to the bottom pallet. Packaging straps must be added to hold the entire package together and to add strength to the package.

HomeTOCPrevNextGlossSearchHelp
-

Copyright 1988-1996 © Cisco Systems Inc.