Ubiquiti U Fiber, 8-port GPON OLT Ubiquiti Networks U Fiber OLT offers (8) GPON ports and can support up to 1024 concurrent clients with 20km physical links. Two SFP+ ports provide 10G uplink connectivity. UF-OLT features two modular power adapter bays for flexible power options. One DC/DC power module is includes, and the second power bay houses a backup power module, or an AC/DC module for AC powering. Product Specifications ? Dimensions: 442.4 x 285.6 x 43.7mm (17.42 x 11.24 x 1.72″) ? Weight: Without Mount Brackets: 4.40kg (9.7lbs) With Mount Brackets: 4.495kg (9.1lbs) ? Networking Interfaces: (8) GPON OLT SFP (2) 1G/10G SFP+ ? Concurrent Clients: 1024 Registered ONUs/ONTs (128 per GPON Port) ? Management Interfaces: (1) Ethernet Out-of-Band Management (1) Ethernet In-Band Management (1) RJ45 Serial Console Port (1) Bluetooth ? GPON Speeds: 2.488Gbps Upstream (TX) 1.244Gbps Downstream (RX) ? Operating Wavelengths: 1490nm TX 1310nm RX ? Normal Optical Power Range: TX (Class B+): 1.5 to 5dBm RX: -8 to -28dBm ? Range: Physical Reach: 20km Logical Reach: 60km Max. Differential Fiber Distance: 20km (B+) / 40km (C+) ? Power Supply: (2) DC/DC or AC/DC PSU Module Bays (1) 54V 150W DC/DC PSU Module Included ? Max. Power Consumption: 40W (Excluding SFP modules) ? Operating Mode: OLT 2/3 Ethernet Switch and GPON Core ? Advanced QoS: Support 8 Priority Queues per User Port and Traffic Classification ? Processor Specs: MIPS 1004kc 880MHz Dual-Core ? Memory Information: 256MB DDR3, 256MB NAND ? Operating Temperature: -10 to 45°C (14 to 113°F) ? Operating Humidity: 10 to 90% non-condensing ? Certifications: CE, FCC, IC