1.4~16 EPONs in 2.5u/19inch chasis 2. ... capacity, maximum EPON optical fiber interfaces reach up to 16.3. Provide single main control module, single uplink module ... , single power supply module and 4 service interface modules.4. Support AC/DC dual power supply, with ... interface module (EP4)4Hot-swappable 4 EPON interfaces modules,compliant with IEEE802.32005 EPON technical standard,support 20km ...