Safety With Electricity - Cisco ASR 907 Hardware Installation Manual

Safety with Electricity

Warning
Class 1 CDRH) and Class 1M (IEC) laser products. Statement 1055
Warning Invisible laser radiation may be emitted from the end of the unterminated fiber cable or connector. Do not
view directly with optical instruments. Viewing the laser output with certain optical instruments (for example,
eye loupes, magnifiers, and microscopes) within a distance of 100 mm may pose an eye hazard. Statement
1056
Safety with Electricity
Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect
the power at the circuit breaker on DC units. Statement 12
Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces,
and watches). Metal objects will heat up when connected to power and ground and can cause serious burns
or weld the metal object to the terminals. Statement 43
Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement
1001
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning
Read the installation instructions before connecting the system to the power source. Statement 1004
Warning
This product relies on the building's installation for short-circuit (overcurrent) protection. For -48/-60 VDC
installation, the wire shall be 8 AWG minimum with a 40 A circuit breaker. Statement 1005
Warning
This product relies on the building's installation for short-circuit (overcurrent) protection. For an AC installation,
ensure that the branch circuit breaker is rated a maximum 20A.
Cisco ASR 907 Router Hardware Installation Guide
34
Preparing for Installation