3Com S7902E Command Reference Manual - page 2231
1-28
Default Level
2: System level
Parameters
signal
: Specifies the PoE mode as
signal
(power over signal cables).
spare
: Specifies the PoE mode as
spare
(power over spare cables).
Description
Use the
poe mode
command to configure a PoE mode.
Use the
undo poe mode
command to restore the default.
By default, the PoE mode is
signal
(power over signal cables).
The PSE supplies power for a PoE interface in the following two modes:
signal
and
spare
.
z
In the signal mode, lines in Category 3 and 5 twisted pair cables used for transmitting data are
also used for supplying DC power.
z
In the spare mode, lines in Category 3 and 5 twisted pair cables not in use are used for supplying
DC power.
Examples
# Set the PoE mode to
signal
(power over signal cables).
[Sysname] interface ethernet 2/0/1
[Sysname-Ethernet2/0/1] poe mode signal
# Set the PoE mode to
signal
(power over signal cables) through a PoE configuration file.
[Sysname] poe-profile abc
[Sysname-poe-profile-abc-1] poe mode signal
[Sysname-poe-profile-abc-1] quit
[Sysname] interface ethernet 2/0/1
[Sysname-Ethernet2/0/1] apply poe-profile name abc
poe pd-description
Syntax
poe pd-description string
undo poe pd-description
View
PoE interface view
Default Level
2: System level
Parameters
string
: Description of the PD connected to a PoE interface, a string of 1 to 80 characters.