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Installation Guidelines and Requirements
Ensure that cable distance and rate limits meet IEEE-recommended maximum
speeds and dis
tances for signaling purposes. For information about
attenuation and power loss in optical fiber cables see:
ANSI T1.646a-1997 Telecommunications – Broadband ISDN - Physical
Layer Specification for User-Network Interfaces Including DS1/ATM (1997)
ANSI T1.646-1995 Telecommunications – Broadband ISDN - Physical
Layer Specif
ication for User-Network Interfaces Including DS1/ATM (1995)
Ensure that p
ower cables deliver sufficient power to the system.
Attach laser
fiber connectors only to Class 1 laser devices in accordance with
IEC 825-1, Safety of Laser Products - Part 1.
Route cables so that they do not restrict ventilation or airflow.
Route cables so that modules and field-replaceable units are easily accessible.
Route cables in a logical direction to prevent loss of connectivity to other
equipment in the rack, associated e qu ipment in adjac ent racks, or to the
backbone ne
twork.
Consider usi
ng cable-management brackets to keep network cables untangled
and orderly and to prevent cables from hindering access to other slots.
For specifications on cables for line modules, see the ERX Module Guide.
You may want to consult the document GR-63 (LSSGR, FD-15): Network
Equipment Building System (NEBS) Requirements: Physical Protection, Issue
1, October 1
995 for additional cable recommendations.
Product Reclamation and Recycling Program
Juniper Networks is committed to environmentally responsible behavior. As part of
this commi
tment, we continually work to comply with environmental standards
such as the European Union’s Waste Electrical and Electronic Equipment (WEEE)
Directive and Restriction of Hazardous Substances (RoHS) Directive.
These directives and other similar regulations from countries outside the European
Union regu
late electronic waste management and the reduction or elimination of
specific hazardous materials in electronic products. The WEEE Directive requires
electrical and electronics manufacturers to provide mechanisms for the recycling and
reuse of t
heir products. The RoHS Directive restricts the use of certain substances
that are comm only found in electronic products today. Restricted substances
include heavy metals, including lead, and polybrominated materials. The RoHS
Directiv
e, with some exemptions, applies to all electrical and electronic equipment.
In accord
ance with Article 11(2) of Directive 2002/96/EC (WEEE), products put on
the market after 13 August 2005 are marked with the following symbol or include it
in their documentation: a crossed-out wheeled waste bin with a bar beneath.
Product Reclamation and Recycling Program 137