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MRV Communications, Inc. – Installation Manual
iv
Safety Requirements
All requirements stipulated in the safety laws of the country of installation must be
abided by when installing the TereScopes.
Caution!
In addition, ensure that the requirements noted in this chapter are met in
order to reduce risk of electrical shock and fire and to maintain proper
installation.
Before Installing
Power: Ensure that all power to the TereScope is cut off. Specifically,
disconnect all TereScope power cords from the power line (mains).
Inspection: Ensure by inspection that no part is damaged.
Before Powering On
Line Power: Ensure that the power from the line (mains) is as specified on
the TereScope.
Power Cord: The power cord of The TereScope must have the following
specifications:
Flexible 3-conductor power cord approved by the cognizant
safety organization of the country. The power cord must be
Type HAR (harmonized), with individual conductor wire
having cross-sectional area 0.75 sq. mm. min. The power cord
terminations should be a suitably rated earthing-type plug at
one end and 3 terminal cord forks for M3 screws (1 for each
wire) at the other end. Both of the power cord terminations
must carry the certification label of the cognizant safety
organization of the country.
When Installing
• Ensure, by visual inspection, that no part of the TereScope is damaged.
• Avoid eye contact with the laser beam at all times.
• Ensure that the system is installed in accordance with ANSI Z136.1
control measures (engineering, administrative, and procedural
controls).
• Ensure that the system is installed in accordance with applicable
building and installations codes.
• Install the TereScope in a restricted location as defined in this manual
since it is a Class 1M FSOCS transmitter and receiver. A restricted
location is a location where access to the transmission equipment and
exposed beam is restricted and not accessible to the general public or
Figure A: 3 terminal cord forks