... support 20km transmission distance (Standard configuration without optical module)4Uplink interface module(HUP)1Hot-swappable ... Net weight5KgPower consumption≤40WOperating conditionTemperature:0 ~ +55°C, humidity:10 ~ 90% (non-condensed)Storing conditionTemperature:- ... support SNMPv1/v2, support IEEE802.3ah OAMManagement functionSupport equipment configuration management, performance management, fault management, sources ...