3Com 7750 Series 2.2 PoE PSU Supervision Configuration Commands

3Com Switch 7750 Series
Command Reference Guide – PoE Chapter 2 PoE PSU Supervision Configuration Commands
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2.2 PoE PSU Supervision Configuration Commands
2.2.1 poe-power input-thresh lower
Syntax
poe-power input-thresh lower string
View
System view
Parameter
string: Undervoltage alarm threshold (in V) in the format of X.X.
z For 220 VAC input, it ranges from 176.0V to 264.0V
z For 110 VAC input, it ranges from 90.0V to 132.0V
Description
Use the poe-power input-thresh lower command to set the undervoltage alarm
threshold of AC input for the external PoE PSUs.
For 220 VAC input, the recommended value is 181.0 V; for 110VAC input, the
recommended value is 90.0 V.
Example
# Set the undervoltage alarm threshold of AC input for the external PoE PSUs to 181.0
V.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] poe-power input-thresh lower 181.0
Set lower input-threshold power successfully!
2.2.2 poe-power input-thresh upper
Syntax
poe-power input-thresh upper string
View
System view
Parameter
string: Overvoltage alarm threshold (in V) in the format of X.X.
z For 220 VAC input, it ranges from 176.0V to 264.0V.
z For 110 VAC input, it ranges from 90.0V to 132.0V.