Table Of Contents
Preparing to Install a SIP or a Shared Port Adapter
Electrical Equipment Guidelines
Preventing Electrostatic Discharge Damage
Preparing to Install a SIP or a Shared Port Adapter
This chapter describes the general equipment, safety, and site preparation requirements for installing SIPs and SPAs. This chapter contains the following sections:
Required Tools and Equipment
You need the following tools and parts to install SIPs and SPAs. If you need additional equipment, contact a service representative for ordering information.
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Shared port adapter interface processor (SIP)
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Shared port adapter (SPA)
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Number 1 Phillips screwdriver
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Number 2 Phillips screwdriver
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3/16-inch flat-blade screwdriver
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Your own electrostatic discharge (ESD)-prevention equipment or the disposable grounding wrist strap supplied with the SIP or SPA
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Antistatic mat
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Antistatic container
Safety Guidelines
This section provides safety guidelines that you should follow when working with any equipment that connects to electrical power or telephone wiring.
Safety Warnings
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, might harm you. A warning symbol precedes each warning statement.
Warning Definition
Warning
Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001
Warning
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021
Warning
Hazardous network voltages are present in WAN ports regardless of whether power to the unit is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the unit first. Statement 1026
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place.
Statement 1029
Warning
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when servicing. Statement 1034
Warning
Do not use this product near water; for example, near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet basement, or near a swimming pool. Statement 1035
Warning
Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. Statement 1036
Warning
Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface. Statement 1037
Warning
Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning. Statement 1038
Warning
To report a gas leak, do not use a telephone in the vicinity of the leak. Statement 1039
Warning
Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network voltages. Statement 1041
Warning
This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260. Incorrectly connecting this equipment to a general-purpose outlet could be hazardous. The telecommunications lines must be disconnected 1) before unplugging the main power connector or 2) while the housing is open, or both. Statement 1043
Warning
The covers are an integral part of the safety design of the product. Do not operate the unit without the covers installed. Statement 1077
Electrical Equipment Guidelines
Follow these basic guidelines when working with any electrical equipment:
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Before beginning any procedures requiring access to the chassis interior, locate the emergency power-off switch for the room in which you are working.
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Disconnect all power and external cables before moving a chassis.
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Do not work alone when potentially hazardous conditions exist.
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Never assume that power has been disconnected from a circuit; always check.
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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.
CautionThis equipment is suitable for intrabuilding wiring only.
Telephone Wiring Guidelines
Use the following guidelines when working with any equipment that is connected to telephone wiring or to other network cabling:
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Never install telephone wiring during a lightning storm.
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Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
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Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.
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Use caution when installing or modifying telephone lines.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improperly handled, results in complete or intermittent failures. SIPs, SPAs, and processor modules comprise printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps to protect the board from ESD, use a preventive antistatic strap during handling.
Following are guidelines for preventing ESD damage:
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Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.
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Connect the equipment end of the strap to an unfinished chassis surface.
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When installing a component, use any available ejector levers or captive installation screws to properly seat the bus connectors in the backplane or midplane. These devices prevent accidental removal, provide proper grounding for the system, and help to ensure that bus connectors are properly seated.
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When removing a component, use any available ejector levers or captive installation screws to release the bus connectors from the backplane or midplane.
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Handle carriers by available handles or edges only; avoid touching the printed circuit boards or connectors.
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Place a removed board component-side-up on an antistatic surface or in a static shielding container. If you plan to return the component to the factory, immediately place it in a static shielding container.
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Avoid contact between the printed circuit boards and clothing. The wrist strap only protects components from ESD voltages on the body; ESD voltages on clothing can still cause damage.
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Never attempt to remove the printed circuit board from the metal carrier.
CautionFor safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms).
Laser/LED Safety
An optical single-mode transmitter uses a small laser to transmit the light signal to the network ring. Keep the transmit port covered whenever a cable is not connected to it. Although multimode transceivers typically use LEDs for transmission, it is good practice to keep open ports covered and avoid staring into open ports or apertures. The single-mode aperture port contains a laser warning label, as shown in Figure 4-1. The multimode aperture contains a Class 1 LED warning label, as shown in Figure 4-2. These warnings apply to SPAs and SFP modules that transmit signals via an optical carrier signal.
Figure 4-1 Class 1 Laser Warning Labels for Single-Mode Port
Figure 4-2 Class 1 LED Warning Label for Multimode Port
Warning
Class 1 laser product. Statement 1008
Warning
Class 1 LED product. Statement 1027
Warning
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051




























