Nokia 9500 MPR User Manual page 61

Release 7.0.0 3DB 19286 ACAA Issue 01
WebEML User Manual
The laser source is placed in the optional SFP plug-in, which is installed in the Core-E
card, P8ETH card, and EASv2 card. The laser source is placed in the left side of the
SFP plug-in.
Verify that laser labels on equipment state that the system conforms to all applicable
standards of 21 CFR 1040.10. If there are no danger labels, call the Nokia Technical
Support Center (TSC).
The invisible infrared radiation emitted by the fiber-optic transmitter can cause eye
damage. Observe local office procedures and the following dangers:
Danger:
•The use of controls and/or adjustments, or the performance of procedures other than those
specified herein may result in hazardous infrared radiation exposure.
•Laser infrared radiation is not in the visible spectrum; therefore, it is not visible to the naked
eye or with laser safety glasses. Although it cannot be seen, laser radiation may be present.
•Never look directly into an unterminated fiber-optic connector unless it is absolutely known
that no optical power is being emitted by the connector.
•Never look into a broken optical fiber cable unless it is absolutely known that no laser
radiation is present.
•Never look at an optical fiber splice, cable, or connector unless it is absolutely known that
no laser radiation is present in the fiber. Laser radiation can come from a fiber-optic
transmitter, an Optical Time Domain Reflectometer (OTDR), or other optical test
equipment.
•Never look directly into an unterminated optical connector or cable with a magnifier/
microscope unless it is absolutely known that no laser radiation is being emitted from the
connector or cable. A magnifier or microscope greatly increases the laser radiation hazard
to the eyes.
•This system normally operates as a Class I Laser Product (no hazard). However, during
servicing operations, when optical connectors are being connected, disconnected, or
handled without dust covers, it is possible to be exposed to Class IIIb laser radiation, which
can cause eye damage.
•Everyone within a 10 ft (3 m) radius of an unterminated optical fiber or connector that is
connected to a powered transmitter must wear laser safety goggles or eye shields.
Laser safety goggles or eye shields are not required if the following work rules are
strictly followed:
1. Always remove electrical power from fiber-optic transmitters before
2. Never connect an unterminated optical cable to a fiber-optic transmitter. Always
disconnecting fiber-optic connectors in the path between the transmitter and the
receiver.
connect fiber-optic cables to fiber-optic receivers, test sets, or some other
termination first.
Safety awareness
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