RTN510 AP ports difference
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Hello friend！ COMBO port, as shown in the following figure, is an electrical Ethernet port. It is reserved as a multi-functional composite port. A GE interface can be used only after an optical module is installed. Both GE ports and P&E ports provide transmission services. However, the P&E interface is an electrical interface. The maximum transmission distance of the P&E interface is 100 m. If the transmission distance exceeds 100 m, the signal will be attenuated. The GE interface is an optical interface. The maximum transmission distance of a GE port is 10 km (affected by the optical module). Therefore, the selection of GE ports and P&E ports depends on the actual environment. Note: The P&E interface must be connected. The P&E interface does not use services but must supply power to the equipment.
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Hello, The RT II provides two GE ports, with one P&E port for service access and power supply and one GE port for service access. Ports and IndicatorsFigure 2 Positions of ports and indicators 
 Unused ports must be capped. For details about pin assignments of ports, see Pin Assignments for RJ45 Ports. The AP provides three service ports, two antenna ports, and one maintenance compartment. Ports and IndicatorsFigure 2 shows the positions of ports and indicators on the AP. The maintenance compartment contains a USB port. While the AP is operating, the protective cover of the maintenance compartment must be closed.
Unused ports must be capped. COMBO(e) and P&E ports are both RJ45 ports. For details about pin assignments of ports, see Pin Assignments for RJ45 Ports. More detail Hope this helps Thanks | |||||||||||||||||||||||||||
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Hello friend！ COMBO port, as shown in the following figure, is an electrical Ethernet port. It is reserved as a multi-functional composite port. A GE interface can be used only after an optical module is installed. Both GE ports and P&E ports provide transmission services. However, the P&E interface is an electrical interface. The maximum transmission distance of the P&E interface is 100 m. If the transmission distance exceeds 100 m, the signal will be attenuated. The GE interface is an optical interface. The maximum transmission distance of a GE port is 10 km (affected by the optical module). Therefore, the selection of GE ports and P&E ports depends on the actual environment. Note: The P&E interface must be connected. The P&E interface does not use services but must supply power to the equipment.
Hope it helps you! |
Thomas_Tan
Created Feb 9, 2022 13:14:41
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Simply put, if the other port fails, you can use the COMBO port as a backup port. By default, a COMBO port is an electrical port. You can also set the COMBO port as an optical port as required. However, optical ports and electrical ports cannot work at the same time. 
HR_Huawei
Reply Thomas_Tan Created Feb 11, 2022 11:13:32
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Very useful informations, thank you so much Thomas for your help !
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