3Com Switch 8800 Configuration Guide
Chapter 52 PoE PSU Supervision Configuration
52-3
52.3.1 DC Output Alarm Thresholds Configuration Tasks
Table 52-2
DC output alarm thresholds configuration tasks
No
Operation
Command
Description
1
Enter system view
system-view
—
2
Set the overvoltage alarm
threshold of DC output (upper
threshold) for the PoE PSUs
poe-power output-thresh
upper
string
Required,
and the range
is 55.0 V to
57.0 V.
3
Set the undervoltage alarm
threshold of DC output (lower
threshold) for the PoE PSUs
poe-power output-thresh
lower
string
Required,
and the range
is 45.0 V to
47.0 V.
4
Display the DC output state
of the PoE PSUs.
display poe-power
dc-output state
Optional, and
you can
execute this
command in
any view.
5
Display the DC output
voltage/current value of the
PoE PSUs
display poe-power
dc-output value
Optional, and
you can
execute this
command in
any view.
Note:
For both 220 VAC and 110 VAC input, it is recommended to set the upper threshold to
57.0 V and the lower threshold to 45.0 V.
52.3.2 DC Output Alarm Thresholds Configuration Example
I. Network requirements
z
Set the overvoltage alarm threshold of DC output for the PoE PSUs to 57.0 V.
z
Set the undervoltage alarm threshold of DC output for the PoE PSUs to 45.0 V.
II. Configuration procedure
Enter system view.
<SW8800> system-view
Set the overvoltage alarm threshold of DC output for the PoE PSUs to 57.0 V.
[SW8800] poe-power output-thresh upper 57.0
Set the undervoltage alarm threshold of DC output for the PoE PSUs to 45.0 V.
