... of dust, lightning protection, wide temperature, high reliability requirements. OP-EU40012 support 1G symmetric uplink and downlink transmission rate, and ... to provide flexible services to users, reliable QOS service. OP-EU40012 ONU EPON full compliance with IEEE defined technical ... the EPON equipment operators technical requirements. 2.Features (1). OP-EU40012 is a pure data-based ONU (2). IEEE802. ...