Lantronix
SISTP10x0-3xx-LRT Install Guide
33733 Rev. G
Page
16
of
31
Grounding
After the Switch is mounted and connected, the front panel grounding screw (
) can be used for grounding.
Grounding and wire routing help limit the effects of noise due to electromagnetic interference (EMI). Run the
ground connection from the ground screw to the grounding surface before connecting devices.
ATTENTION:
This case must be earth grounded. No DC input may be earth grounded. Use Isolated Power Supply.
Warning
:
Minimum input 57 VDC. Check polarity first!
Note
:
When input rating is 48 – 51 V DC, each PoE port output is 15 W max. When input rating is 51 - 57 V DC,
each PoE port output is 30 W max.
Note
: Both the switch and Power Supply 25105 / 25104 must have their ground terminals connected to earth
ground.
Caution
:
Tying the output connection of the DC power supply to earth ground to create an earth referenced
voltage power supply will violate the power supply isolation to earth ground requirements of IEEE 802.3af/at/bt.
If an earth grounded power supply is utilized, all connected equipment to this power source must then be tied
to same local earth ground as the power supply source. Failure to maintain a common earth ground potential
for all nodes on the power distribution network can cause equipment damage due to high voltage ground
differences between the connected equipment. It is recommended that the power supply connections for PoE
networks not be tied to earth ground.