....................................................................................................................................................................................................................................

Background information

Before you begin

Procedure

8 - 6

The LC attenuator which will be determined in the procedure

described below should be placed on the INPUT port because this is

the furthest physical point on the fiber line from the OUTPUT port

and takes all connector losses into account.

Be sure that all fiber connectors are clean. A cleaning procedure is

described in Appendix A, section

DANGER

Injury to eyes caused by invisible laser radiation.

LambdaUnite

radiation. Laser radiation can cause considerable injuries to

the eyes.

Never look into the end of an exposed fiber or into an

open optical connector as long as the optical source is

switched on. Always observe the laser warning

instructions (cf.

Proceed as follows to establish a network:

............................................................................................................................................................

Connect an optical fiber to the OUT port of one optical circuit pack.

............................................................................................................................................................

Move to the next NE. At the IN port of the respective optical circuit

pack measure the received optical power from the far-end transmitter.

Important! The optical power meter must be set to the appropriate

wavelength range.

..........................................................................................................................................................

Check that the measured value is within the range shown below (see

section

"Optical power and wavelength ranges"

Lucent Technologies

"Fiber cleaning"

™

MSS systems operate with invisible laser

"Laser safety"

(1-11)).

Span / Ring testing

(A-13).

(8-8)).