Allied Telesis AT-8088/xx (MT and SC) - Manual (Page 39)

AT-8000 Series Fast Ethernet Switches Installation Guide
39
DC Power Connector
The DC power connector featured on some models of the AT-8000 Series
Switch is described below.
The switch has a DC terminal block on the back panel, which has three
terminals (positive, frame ground, and negative). Refer to ”Wiring a DC
Powered Unit” on page 68, for instructions on how to wire a DC powered
unit.
Refer to ”Technical Specifications” on page 79, for the input voltage
range.