Electrical equipment guidelines, Telephone wiring guidelines, Laser/led safety – Cisco XR 12000 Series User Manual
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Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide
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Chapter 3 Preparing to Install a Shared Port Adapter or a SPA Interface Processor
Safety Guidelines
•
Do not wear loose clothing, jewelry, or other items that could get caught in the router while working
with line cards.
•
Cisco equipment operates safely when it is used in accordance with its specifications and product
usage instructions.
Electromagnetic Compatibility Regulatory Statements
Electromagnetic compatibility regulatory statements are listed in the Regulatory Compliance and Safety
Information for XR Cisco 12000 Series Internet Router publication (Document Number 78-4347-xx)
that accompanied your router. Review these before installing, configuring, or maintaining your SIP or
SPA.
Electrical Equipment Guidelines
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 moving 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.
Telephone Wiring Guidelines
Use the following guidelines when working with any equipment that is connected to telephone wiring or
to other network cabling:
•
Never install telephone wiring during a lightning storm.
•
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.
Laser/LED Safety
The single-mode transmitter in the module 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
.