Televes Optical

Mini-optical node that serves as a bridge between coaxial technology and optical networks. It converts the optical signal (1200 nm-1600 nm) from the main network into a coaxial signal (87 MHz-1220 MHz) that reaches the user's modem. Thanks to the return channel transmitter in the 1310-nm window with 3 dBm optical power, the node also converts the signal from the coaxial modem (5 MHz - 65 MHz) into an optical signal for the operator's headend. It uses two optical fibers: one for the forward channel and the other for the return channel. Ideal for setups where the DOCSIS protocol is used for bidirectional data distribution and the DVB-C standard for television signals. Equipped with OLC technology. Perfect for RF overlay and FTTB applications.

Highlights

• With OLC technology (Optical Level Control), the parameters are automatically adjusted to achieve a constant output level regardless of channel load.
• Equipped with attenuation controllers.
• High output voltage (RF amplification) and improved C/N.
• Broadband optical reception.
• Very low power consumption.

Features

• DOCSIS compatible.

Two operating modes:
1. CW (Continuous Wave), in this mode the laser continuously transmits; useful in applications where the return channel is attenuated (FTTB).
2. RFoG (RF over Glass); in this mode the laser only transmits when there are packets to be sent; therefore, it is recommended only for setups with minimal return channel attenuation (FTTH).

• Optical SC/APC connectors and F-connectors for RF.
• Local power supply.

Specification
Forward channel

• Frequency range MHz 87 ... 1220.
• Output impedance Ohm 75.
• OLC input level dBm -8 ... +1 dBm.
• Ripple dB ± 1.
• Outputs 1.
• Output level OLC enabled, Output 1 dBμV 93.
• CNR dB > 52.
• CSO dB > 60.
• CTB dB > 60.
• Noise equivalent input size pA/Hz < 6.
• Equalizer interstage dB 6/12 select.