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.