Planet GT-805A User Manual page 6

Power Information
The power jack of Gigabit Ethernet Media Converter is with
2.5mm in the central post and required +5VDC power input.
It will conform to the bundled AC-DC adapter and Planet's
Media Chassis. Should you have the issue to make the power
connection, please contact your local sales representative.
Please keep the AC-DC adapter as spare parts when your
Gigabit Ethernet Media Converter is installed to a Media Chassis.
2.5mm
DC Receptacle 2.5mm
+5V for each slot
DC receptacle is 2.5mm wide that conforms to the Gigabit
Ethernet Media Converter's 2.5mm DC jack's central post. Do
not install any improper unit.
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