Parallax PDT-NSM-7208-MP-SF-I Operation Manual page 8

6.3 SFP Ports
The Front Panel has 2 SFP Ports and all are capable of Full/Half Duplex Modes, and Auto-
MDI/MDIX functionality; each can support single or dual core, single-mode or multi-mode fiber.
6.4 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.
6.5 PoE Compatibility
Model No
PDT-NSM-7208-MP-SF-I
The PoE output for this model is compatible with PoE and PoE+ Standards, as can be seen in the
table above.
6.6 Reset Button
The device can be reset back to factory default configuration settings using the Reset Button.
Hold the reset button down for 5-10secs and the device lights will begin to flash, then release the
button and the switch will reboot and will be reconfigured to factory settings.
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