... , lightning protection, wide temperature, high reliability requirements. OP-EU40091 support 1G symmetric uplink and downlink transmission rate, and ... to provide flexible services to users, reliable QOS service. OP-EU40091 ONU EPON full compliance with IEEE-defined technical standards, ... EPON equipment operators technical requirements.2. Features (1). OP-EU40091 is a pure data-based ONU (2). IEEE802.3ah ...