Short-Circuit - Alcatel-Lucent 1643 AM Handbuch

EN: Safety guide
Detector diodes
CAUTION
Destruction of the detector diodes caused by too high an input power
Connecting the output and input of optical circuit packs with a transmit power in excess
of -3 dBm over short distances will cause the destruction of the detector diodes, as the
input power is then too high.
Use an optical attenuator pad of approx. 10 to 20 dB when establishing connections over
short distances for test purposes.
Receiver sensitivities
You can find the receiver sensitivities in the 1643 Access Multiplexer (AM) and 1643
Access Multiplexer Small (AMS) Applications and Planning Guide (chapter "Technical
specifications").

Short-circuit

CAUTION
Destruction of circuit packs in the event of a short-circuit
A short-circuit in the network element can cause destruction of electronic components
and thus malfunctioning of the complete system.
You must therefore not handle objects such as a screwdriver in the circuit pack area of the
shelf.
Test voltage
CAUTION
Destruction of components due to test voltage of incorrect polarity or too
high
The use of test voltages above 6 V DC for measurements on circuit packs can cause
destruction of components and thus malfunctioning of the complete system.
Ensure that the test voltage does not exceed 6 V DC and that the test equipment is
connected with the correct polarity.
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Issue 3, June 2007