Lantronix
SM24TBT2DPB Install Guide
33845 Rev. B
Page
17
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48
High Risk Activities Disclaimer
Components, units, or third-party products used in the product described herein are NOT fault-tolerant and are
NOT designed, manufactured, or intended for use as on-line control equipment in the following hazardous
environments requiring fail-safe controls: the operation of Nuclear Facilities, Aircraft Navigation or Aircraft
Communication Systems, Air Traffic Control, Life Support, or Weapons Systems ("High Risk Activities"). Lantronix
and its supplier(s) specifically disclaim any expressed or implied warranty of fitness for such High Risk Activities.
Network Safety
This subclause sets forth a number of recommendations and guidelines related to safety concerns. The list is
neither complete nor does it address all possible safety issues. The designer is urged to consult the relevant local,
national, and international safety regulations to verify compliance with the appropriate requirements. LAN cabling
systems described in this clause are subject to at least four direct electrical safety hazards during their installation
and use. These hazards are as follows:
a) Direct contact between LAN components and power, lighting, or communications circuits.
b) Static charge buildup on LAN cabling and components.
c) High-energy transients coupled onto the LAN cabling system.
d) Voltage potential differences between safety grounds to which various LAN components are connected.
Such safety hazards should be avoided or appropriately protected against for proper network installation and
performance. In addition to provisions for proper handling of these conditions in an operational system, special
measures should be taken to verify that the intended safety features are not negated during installation of a new
network or during modification of an existing network.
Equipment shall comply with all applicable local and national codes related to safety.
Note that this manual provides links to third part web sites for which Lantronix is not responsible.
US Electrical System Design Standards
These US standards define all electrical rules and requirements necessary to connect and use electricity.
In the US, the basic standards to adhere to when designing electrical systems are:
•
American National Standards Institute (ANSI)
•
National Electrical Manufacturers Association (NEMA)
•
Institute of Electrical and Electronics Engineers (IEEE) Standards
•
National Electric Code (NEC) (required for electric service up to 600 Volts)
•
IEEE color book publications (for IT installations in different facilities)
Other Worldwide Standards
Other standards to use worldwide are based on IEC (International Electrotechnical Commission) Standards:
•
BS (British Standards)
•
DIN (German Standards)
•
CEI (Italian Standards)
•
EN (European Norm) Standards
Low-line vs High-line Input Voltage Selection
Use diligence when selecting the proper input voltage in the Americas and other world regions that follow North
American commercial wiring practices. Selecting low-line operation vs high-line operation affects power supply
output capacity and reliability, power supply thermal operation, and power conversion efficiency.