KSwitch D3 Unmanaged Fast Ethernet Switch - Preliminary User Guide, Rev. 0.9
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4.2.
Bottom Side Features
For the 10-port switch, the DC terminal block and the ground connector are located on the bottom side.
4.2.1.
DC Terminal Block Power Contacts (10-port)
The switch can be powered from dual external DC power supplies (input range of 12 VDC to 58 VDC) by insert the
positive and negative wires into the corresponding contacts for the first power supply P1+/- and second power
supply P2+/- on the DC terminal block and tighten the wire-clamp screws to prevent the wires from loosening. The
switch supports fault alarm notification for power. To check for correct operation, refer the LED indicators P1 and P2
on the faceplate.
Figure 9: Power Contacts (10-port)
1
P1+ contact
2
P1- contact
3
P2 + contact
4
P2- contact
When connecting the power follow the polarity indicated for P1 +/-and/or P2+/-.
When attaching power wires to the DC terminal block’s power contacts consider:
•
DC terminal block pitch, 5.08 mm
•
Wire size range: Solid wire: 12~24 AWG and Stranded wire: 12~24 AWG
•
Wire length 3 m (9.84 ft.) maximum
•
Wire strip length 7 mm (0.28 in)
With multiple power sources connected to the switch, the switch utilizes the power supply
with the higher voltage or the most stable power supply.
1
2
3
4
