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P31003-H3560-S403-54-7620, 09/05
HiPath 3000 V6.0, HiPath 5000 V6.0, Provisional Service Manual
1-7
Important Information
Safety Information
Working on electrical circuits
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Work on low-voltage electrical networks (100 to 240 Vac) must only be carried out by qual-
ified personnel or authorized electrical engineers.
●
Do not work alone. Work with another person who knows the locations of the power-off
switches.
●
Never touch live wires that are not properly insulated.
●
Ensure that a machine cannot be powered on from another source or controlled from a dif-
ferent circuit breaker or disconnecting switch.
●
Before starting any work, check whether the corresponding circuits are still on power. Nev-
er take it for granted that all circuits have reliably been disconnected from the power supply
when a fuse or a main switch has been switched off.
●
Use caution when installing or modifying telephone lines. Never install telephone wiring
during an electrical storm.
●
Expect leakage current from the telecommunications network.
●
When performing work on an open system, ensure that it is never left unsupervised.