The FDN (Fiber Deep Node) is designed to provide an economic solution to the fast growing fiber deep network. Careful attention to design and implementation of the RF circuitry provides high output levels with excellent specifications. It utilizes a receiving module to assure optimum carrier-to-noise performance and with GaAs hybrids, the output level can reach up to 52dBmV. It is also able to work at very low optical input power. FDN offers a wide variety of pass band options. Diplex filters are available at 35/47, 42/54, and 65/87 MHz, allowing operation in virtually any cable system worldwide. All of the bi-directional ports are capable of passing power into or out of the unit. Configured in a sturdy, weatherproof die casting aluminum alloy housing, FDN operates over a wide temperature range and accepts cable powering from 40 – 90Vac.
The unit is optional provisioned also for power supplies of 220/110Vac.

 

Specifications

Forward Path, Optical	Forward Path, RF
Optical Input Range -6dBm to +2dBm, 0dBm nominal Optical Wavelength 1290nm to 1600nm Optical Return Loss ≥45dB Fiber Connector SC/APC, FC/APC	Bandwidth 47 to 862MHz Output Level (@ -1dBm) 112±1dBµV (at 8dB slope, 2 equal outputs) RF impedance 75 Ohms Flatness ≤0.75dB Distortions CTB ≤ -65dBc CSO ≤ -60dBc (Carrier loading 59 PAL-D Channels, Rayvert Transmitter, modulation 3.6% per channel, 10KM fiber, -1dB optical input, 8dB Slope, RF output 112dBµV) Gain Adjustment Plug in attenuator 0-10dB 2dB per step and 0-20dB continuously adjustable attenuator Slope Adjustment 0-20dB continuously adjustable slope Output Return Loss ≥16dB Test Points -20dB
Return Path	Return Path, RF
Optical Output Power 1mW or 2mW (FP or DFB) Optical Wavelength 1310nm ±10nm Optical Return Loss ≥45dB Fiber Connector SC/APC, FC/APC	Bandwidth 5~35/42/65MHz RF input power 20dBmV Test Points -20 dB Flatness ±0.75dB Power 60VAC or 110/220VAC (50/60Hz) Gain Adjustment Plug in attenuator 0-10dB 2dB per step
General
Return loss ≥16dB Power consumption ≤ 40W RF Connector F Dimensions (L x W x H) 290 mm x 210 mm x 150 mm Weight ≤4 Kg Operating Temperature -20ºC to +50ºC