To eliminate the problem of OBI from RF over glass (RFoG), fiber to the home (FTTH) networks, Lindsay Broadband offers the OBI-free LBON320ACT RFoG premise optical network unit (ONU).
Optical beat interference (OBI) occurs when simultaneous optical upstream transmissions from multiple CPE devices (RFoG mini nodes) interfere with each other – a condition that becomes more likely as subscriber densities increase.
The LBON320ACT provides OBI elimination in networks with multiple upstream lasers in passive optical splitter networks. The LBON320ACT device eliminates OBI without compromising network performance. It enables operators to efficiently deliver higher capacity DOCSIS® 3.0 and 3.1 technologies.
Lindsay’s LBON320ACT also provides groups of 8 stable upstream wavelengths, separated by 0.5 nm and thermally controlled to maintain its center wavelength over temperatures from -40°C to +60°C (-40°F to +140°F). The user can choose from 8 wavelengths (from 1603.5 nm to 1616.5 nm) via the interactive front panel on the ONU.
The LBON320ACT device uses an LED display to show the selected channel/wavelength of the ONU. The LED display will also show the optical receive input level in dBm. A pushbutton beside the display allows the user to select the desired wavelength. The LBON320ACT device supports 42/54 MHz, 65/85 MHz, and 85/102 MHz frequency splits with the downstream frequency band out to 1218 MHz. The LBON320ACT device comes standard with automatic gain control (AGC) and burst-mode return lasers.