• Keep the work area clear, smoke and dust-free during and after installation. Do not allow dirt or debris
to enter into any laser-based components.
• Do not wear loose clothing, jewelry, or other items that could get caught in the router or other associated
components.
• Cisco equipment operates safely when used in accordance with its specifications and product-usage
instructions.
• Be sure to power down a fixed configuration PDU or modular configuration power shelf before removing
it from the chassis.
• If potentially hazardous conditions exist, do not work alone.
• Take care when connecting multiple units to the supply circuit so that wiring is not overloaded.
• This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority
or an electrician if you are uncertain about whether suitable grounding is available.
• To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the
handles on modules (such as power supplies, fans, or cards); these types of handles are not designed to
support the weight of the unit.
• Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when
servicing.
• When installing or replacing the unit, the ground connection must always be made first and disconnected
last.
• The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor before you slide
the unit out for servicing. Failure to stabilize the rack may cause the rack to tip over.
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams
or view directly with optical instruments. Statement 1051
Warning
Cautions and Regulatory Compliance Statements for NEBS
The following are NEBS GR-1089-CORE cautions, regulatory compliance statements, and requirements:
• The intra-building port(s) of the equipment or subassembly must use shielded intra-building cabling/wiring
that is grounded at both ends.
The intra-building port(s) of the equipment or subassembly is suitable for connection to intra-building or
unexposed wiring or cabling only. The intra-building port(s) of the equipment or subassembly must not be
metallically connected to interfaces which connect to the OSP or its wiring. These interfaces are designed for
use as intra-building interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE) and require
isolation from the exposed OSP cabling. The addition of primary protectors is not sufficient protection in
order to connect these interfaces metallically to OSP wiring.
Caution
Hardware Installation Guide for Cisco NCS 5500 Series Modular Routers
20
Prepare for Installation
Cautions and Regulatory Compliance Statements for NEBS
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