... , Modular PDH and Network Management System 7 serial over 30 models of device. All of PDH are equipped with HWATEL elaborate designed ... up to 224 E1Services supported: E1, Ethernet, FXS, FXO, V.35, V.24, RS-232, lease line, E&MPower supply support ... feature LED status indicators, AIS alarm generationWith NMS can manage/control peer PDHEthernet management port with SNMP version 2 protocol supports ...