Cisco 220 Series Smart Plus Switches Quick Start Guide 9
CAUTION Consider the following when connecting switches capable of
supplying PoE:
The PoE models of the switches are PSEs that are capable of
supplying DC power to attaching PDs. These devices include
VoIP phones, IP cameras, and wireless access points. The PoE
switches can detect and supply power to pre-standard legacy
PoE Power Devices. Due to the support of legacy PoE, it is
possible that a PoE switch acting as a PSE may mistakenly
detect and supply power to an attaching PSE, including other
PoE switches, as a legacy PD.
Even though PoE switches are PSEs, and as such should be
powered by AC, they could be powered up as a legacy PD by
another PSE due to false detection. When this happens, the
PoE switch may not operate properly and may not be able to
properly supply power to its attaching PDs.
To prevent false detection, you should disable PoE on the ports
on the PoE switches that are used to connect to PSEs. You
should also first power up a PSE device before connecting it to
a PoE switch. When a device is being falsely detected as a PD,
you should disconnect the device from the PoE port and
power recycle the device with AC power before reconnecting
its PoE ports.
Configuring the Cisco 220 Switch
The Cisco 220 switch can be accessed and managed by two different
methods: over your IP network by using the web-based interface, or by
using the switch’s command-line interface through the console port. Using
the console port requires advanced skills.
These are the default settings used when configuring your switch for the
first time.
Parameter Default Value
Username cisco
Password cisco
LAN IP 192.168.1.254
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