Harmful Optical Signals; Laser Precautions; Figure 14 Class 1 Laser - Nokia 9500 MPR User Manual

Release 7.0.0 3DB 19286 ACAA Issue 01
Safety awareness
Danger: Remain aware of the following:
•Install the 9500 MPR in a restricted-access area only. Entrance to a restricted-access area
is intended for qualified or trained personnel and access to it is controlled by a locked
barrier.
•The MSS-8 shelf does not contain main overcurrent protection devices. The user must
provide circuit breakers or fuses and disconnects between the power source and the 9500
MPR. Each power feed from a source (-48 V dc and Return) requires a dc-rated fast-trip
circuit breaker or fuse and disconnect. Circuit breakers or fuses must meet applicable local
and national electrical safety codes and be approved for the intended application. Circuit
breaker or fuse size is dependent upon site configuration. Refer to site engineering
documentation for the correct Circuit breaker or fuse size.
•The MPT-HL shelf does not contain main overcurrent protection devices. The user must
provide circuit breakers or fuses and disconnects between the power source and the 9500
MPR. Each power feed from a source (+ 24 V dc or- 48V dc and Return) requires a dc-
rated fast-trip circuit breaker or fuse and disconnect. Circuit breakers or fuses must meet
applicable local and national electrical safety codes and be approved for the intended
application. Circuit breaker or fuse size is dependent upon site configuration. See the site
engineering documentation for the correct Circuit breaker or fuse size.
•Make sure you connect the node to a + 24 V dc or - 48V dc source that is electrically
isolated from the ac source and is reliably connected to earth ground.
•For personal safety, make sure you connect and secure the installation site's frame-ground
(earth ground) wire to the frame-ground terminal on the 9500 MPR before you connect any
other wires to the node.
•A dc-power source provides high energy, which can cause serious injury or equipment
damage. Only Nokia qualified personnel should connect the dc power to the 9500 MPR To
prevent serious injury or equipment damage, make sure the power source cables are de-
energized before you handle or connect them to the node.

1.9 Harmful optical signals

1.9.1 Laser precautions

The label in
components according to IEC 60825-1 (par. 5).
Figure 14 Class 1 laser
60
Figure 14 is applied when the equipment contains Class 1 laser
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