User`s manual

Chapter 2 Installation
39
Before switching on this equipment and before connecting any other cable, the
protective ground terminal of MUXpro must be connected to a protective ground.
The grounding connection is made through the power cable, which must be
inserted in a power socket (outlet) with protective ground contact. Therefore, the
power cable plug must always be inserted in a socket outlet provided with a
protective ground contact, and the protective action must not be negated by use of
an extension cord (power cable) without a protective conductor (grounding).
Whenever MUXpro units are installed in a rack, make sure that the rack is properly
grounded and connected to a reliable, low-resistance grounding system. Make
sure that fuses of the required rating are used for replacement. The use of
repaired fuses and the short-circuiting of fuse holders are forbidden.
Whenever it is likely that the protection offered by fuses has been impaired, the
instrument must be made inoperative and be secured against any unplanned
operation.
2.1.2.1.1 Laser Safety Classification
MUXpro units equipped with laser devices comply with laser product performance
standards set by government agencies for Class 1 laser products. The modules do
not emit hazardous light, and the beam is totally enclosed during all in-service
modes of customer operation and maintenance.
MUXpro units are shipped with protective covers installed on all the optical
connectors. Do not remove these covers until you are ready to connect optical
cables to the connectors. Keep the covers for reuse, to reinstall the cover over the
optical connector as soon as the optical cable is disconnected.
2.1.2.1.2 Laser Safety Statutory Warning and Operating Precautions
All the personnel involved in equipment installation, operation, and maintenance
must be aware that the laser radiation is invisible. Therefore, the personnel must
strictly observe the applicable safety precautions and particularly must avoid
looking straight into optical connectors, neither directly nor using optical
instruments.
In addition to the general precautions described in this section, be sure to observe
the following warnings when operating a product equipped with a laser device.
Failure to observe these warnings could result in fire, bodily injury, and damage to
the equipment.