Parallax PDT-NSM-7024-MP-I Operation Manual page 8

6.3 Power Supply Connector
The device is designed to be supplied by a +48VDC power supply but can operate in the range
+48-57VDC. When using a dual power supply feed method, the device will run with the voltage
supply that is the highest and will fail over to the other supply, if the voltage drops below the
backup level. Power is supplied via a 4-pin terminal block connector with the following pinout:
Power Supplies should provide over-current and short-circuit protection and should have a
capacity rating to meet the required output current for the device plus any PoE powered device
requirements.
6.4 PoE Compatibility
Model No
PDT-NSM-7024-MP-I
The PoE output for this model is compatible with PoE and PoE+ Standards, as can be seen in the
table above.
Pin
1
2
3
4
IEEE 802.3af
●
Group
PWR 1
PWR 2
IEEE 802.3at
●
Input
GND
+48-57VDC
GND
+48-57VDC
IEEE 802.3bt