Alcatel 1850 TSS-320 Technical Handbook page 235

A.2.4.2 Optical safety: general rules
On handling optical equipments or units or cables always check that laser labels are properly affixed and
that the system complies with applicable optical standards.
DANGER! Possibility of eyes damage:
the fiber optic transmitters can cause eyes damages. Carefully observe the specific procedures for
installation / turn-up and commissioning / maintenance of units containing laser devices or cables
transporting optical signals, described in the relevant installation / turn-up and commissioning /
maintenance documents and the following general rules:
a) Laser radiation is not visible by the naked eye or with laser safety glasses. Although it cannot be
seen, laser radiation may be present.
b) Never look directly into an unterminated fiber optic connector or into a broken optical fiber cable,
unless it is absolutely known that no laser radiation is present.
c) Never look at an optical fiber splice, cable or connector, unless it is absolutely known that no laser
radiation is present.
d) All optical connectors, terminating either fibers and transmitters/receivers, are provided with
protective covers that must always be used, as soon as possible, when any optical link is
disconnected for installation/test/maintenance purposes or whatever operation.
e) Never look directly into an unterminated fiber optic connector or into a broken optical fiber cable by
means of magnifiers/microscopes, unless it is absolutely known that no laser radiation is present.
A magnifier/microscope greatly increases the damage hazard to the eyes.
f) Never point an unterminated optical fiber splice, cable or connector to other persons, unless it is
absolutely known that no laser radiation is present.
g) Always remove electrical power from near and far optical transmitters before disconnecting optical
links between the transmitter and the receiver.
h) Wearing of laser safety goggles or eyes shields is recommended for every person working on optical
devices, whenever the above listed rules cannot be followed.
A.2.4.3 Optical safety: equipment specific data
Refer to paragraph 5.1.1 on page 184.
Technical Handbook Common
Safety - EMC - ESD norms and labels
invisible infrared radiations emitted by
Alcatel 1850 TSS-320 Rel. 1.1
8DG 07734 AAAA Edition 01 233/270