1 Aruba 3810M Switch Power Supply
There are three power supplies that can be installed in the 3810M switches:
•Aruba X371 12VDC 250W 100-240VAC Power Supply (JL085A)—A 250 watt power supply
for the non-PoE switches. This power supply does not provide any PoE power, and is keyed
so that it will not fit into the power supply slots of 3810M PoE+ switches.
•Aruba X372 54VDC 680W 100-240VAC Power Supply (JL086A)—A 680 watt power supply
for 3810M PoE+ supported switches. Offers up to 370 watts of PoE+ power, and is keyed
so that it will not fit into the power supply slots of non-PoE+ 3810M switches.
•Aruba X372 54VDC 1050W 110-240VAC Power Supply (JL087A)—A 1050 watt power
supply for 3810M PoE+ supported switches. Offers up to 740 watts of PoE+ power, and is
keyed so that it will not fit into the power supply slots of non-PoE+ 3810M switches.
CAUTION: Use only HPE Aruba approved power cords. See “Power cord information” (page 7)
for proper power cord selection.
CAUTION: Disconnect AC power from the power supply BEFORE installing or removing the
power supply. The power supply must NOT be connected to AC power while it is being installed
or removed. The switch power supplies are hot-swappable; that is, a power supply that is
disconnected from the power source can be installed or removed while the switch is receiving
power from another power supply installed in the other power supply slot.
CAUTION: If a power supply must be removed and then reinstalled, wait at least five seconds
before reinstallation. The power supply needs this time to dissipate any retained power. Install
a cover plate on any power supply slot that is not in use.
CAUTION: A slot cover plate MUST be secured over any power supply slot that does not
contain a fully installed power supply unit. This is required for proper air flow and thermal operation.
Leaving a power supply slot uncovered can cause an over-temperature condition inside the
switch that can result in the switch shutting down. During replacement of a power supply unit, it
is acceptable to allow the slot to remain uncovered for up to two minutes in a switch connected
to a power source.
CAUTION: Make sure the power source circuits are properly grounded, then use the power
cord supplied with the power supply to connect it to the power source. If your installation requires
a different power cord than the one supplied with the power supply, be sure the cord is adequately
sized for the switch’s current requirements. In addition, be sure to use a power cord displaying
the mark of the safety agency that defines the regulations for power cords in your country. The
mark is your assurance that the power cord can be used safely with the power supply.
CAUTION: When installing the switch, note that the AC outlet should be near the switch and
should be easily accessible in case the switch must be powered off.
CAUTION: Ensure the power supply does not overload the power circuits, wiring, and
over-current protection. To determine the possibility of overloading the supply circuits, add together
the ampere ratings of all devices installed on the same circuit as the switch with this power supply,
and compare the total with the rating limit for the circuit. The maximum ampere ratings are usually
printed on the devices near their AC power connectors.
CAUTION: Do not install the power supply into a switch that is in an environment where the
operating ambient temperature might exceed 45°C (113°F).
CAUTION: Make sure the airflow around the sides and back of the switch is not restricted.
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