3Com 4500G Series, Руководство по началу работы

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E R
EDUNDANT
P
OWER
S
UPPLY
S
AFETY
I
NFORMATION
Important Safety Information
WARNING: This device has more than one power input. Disconnect all
power inputs to power off this device.
WARNING: The installation of the Redundant Power Supply (RPS) should
only be carried out by properly trained and qualified personnel.
WARNING: These instructions must be read in conjunction with the RPS
flyer and the safety and installation instructions supplied with your RPS.
WARNING: When powering any Switch 4210 from an RPS, the unit must
be earthed (grounded). This can be achieved by either connecting the
power cord to the unit or by connecting the earth terminal on the rear of
the unit to a reliable electrical earth, or by connecting both. It must be
ensured that the earth connection is made before connecting the DC
supply from the RPS.
WARNING: Any RPS must be approved as an unearthed SELV output in
accordance with IEC 60950-1/UL 60950-1/EN 60950-1.
WARNING: RPS Manufacturers’ recommendations must be followed
when connecting the cable to the RPS.
WARNING: Ensure that the circuit breaker in the RPS is in the open (off)
position when connecting the cable to the RPS.
WARNING: You must ensure that the positive terminal on the Switch is
connected to the positive (common) terminal of the RPS and that the
negative terminal on the Switch is connected to the negative (circuit
breaker) terminal of the RPS.