KBC Networks ESUL5P - Manual (Page 8)

Ethernet Switch User Manual
Manual-ESUL5P_Series_HW-Rev1112
Copyright © KBC Networks Ltd.
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2.5 Power Connections
A 6 pin, power terminal block should be used to connect the power cable to the unit.
Figure 2.1 Power connections
Contact number Connections
1 Power 2 -
2 Power 2 +
3 Fault alarm contact
4 Fault alarm contact
5 Power 1 -
6 Power 1 +
Note: If only using one power source, connect pin 1 to pin 5 and pin 2 to pin 6
otherwise the Power Fail LED will be lit.
2.6 Fault Alarm Contact
The fault alarm contacts are in the middle of the 6 pin, screw block terminal on pins 3 &
4. The relay is rated at 1A@24Vdc and an open circuit will occur if a power failure is
detected.
Fig 2.2 Fault Alarm Contacts
Load
External
power
24Vdc, 1A resistance
P-Fail