3Com 3CNJPSE24 - Manual (Page 18)

Installing the Ethernet Power Supply
2-2 Ethernet Power Supply User s Guide
Powering Up
The following sections describe how to get the Ethernet Power
Supply powered up and ready for operation.
CAUTION
The Ethernet Power Supply has no ON/OFF switch. To connect
or disconnect power to the Ethernet Power Supply, insert or
remove the power cable from the AC power receptacle on the
rear of the Ethernet Power Supply.
1) Insert a power cord into the power socket on the rear of the
Ethernet Power Supply.
2) Insert the other end of the power cord into the power
receptacle.
The Ethernet Power Supply powers up and the internal fans
begin operating.
The Ethernet Power Supply then runs through its power-on
self-test (POST), which takes less than 10 seconds. During the
POST, all ports on the Ethernet Power Supply are disabled and
the LEDs light in the following sequence:
1) The AC LED lights.
2) All Port LEDs and the AC LED light for an LED test
(green).
3) All Port LEDs and the AC LED light for an LED test
(orange).
4) The AC LED lights and remains lit (depending on the
input power source).
5) All ports are enabled for normal operation and the
Ports LEDs are ready for indications (see Table 1).
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