... based on multiple service ports, such as GE, POTS, E1, and Wi-Fi. The MA567X series products can be ... devices support multiple service ports, such as GE, POTS, E1 and Wi-Fi ports, to provide services for customers, ... Optical power monitoringLoop line and call emulation tests performed through POTS portsGPON ring network detectionYEthernetVLAN filtering and transparent transmissionVLAN tag adding ...