Product Overview
PL20-3A RFG optical node is the ideal platform for use in FTTB networks,delivering upstream and downstream DOCSIS, voice, video and high speed data service over FTTX applications.PL20-3A has automatic gain control and burst mode function, compliant to an RF over Glass (RFoG) communications network.
PL20-3A RFoG optical node follows SCTE 174 2010 standard .It has different frequency split option, such as 42/54MHz, 65/86/MHz, 85/105MHz. And, PL20-3A has 1GHz working bandwidth, also 1.2GHZ for DOCSIS 3.1 application.Our RFoG optical node is the ideal platform for use in FTTH and FTTB networks. This type of RFoG optical node delivers upstream and downstream DOCSIS, voice, video and high speed data service over FTTX applications.
Specifications
Forward Path
| Parameter | Unit | Value | Condition | |
| Wavelength | nm | 1540~1560 | ||
| Monitor Voltage | V/mW | 1 | λ=1550 | |
| Optical Input Power | dBm | -6~+2 | AGC Range | |
| *Frequency Range | MHz | 54~1002/1218 | 42/54,65/86,85/105MHz available | |
| Flatness | dB | ±0.75 | ||
| Slope | dB | 5±1 | 3±1 available | |
| Output Return Loss | dB | ≥16 | ||
| Optical Output Return Loss | dB | >45 | ||
| *Output Level | dBmV | 48±2 | 52±2 | Pin=-1dBm,4% OMI/ch, 42ch CENELEC |
| dBuV | 108±2 | 112±2 | ||
| *C/N | dB | 50 | ||
| *CTB | dB | ≤-65 | ||
| *CSO | dB | ≤-60 | ||
| Equivalent Noise Input | pA/Hz | <7 | ||
Return Path
| Parameter | Unit | Value | Condition |
| Wavelength | nm | 1610 | 1310nm,CWDM available |
| Optical Output Power | mW | 1~3 | 2mW(3dBm) typical |
| *RF Input Level | dBmV | 20~40 | Typical |
| dBuV | 80~100 | ||
| Flatness | dBm | ±0.75 | |
| Input Return Loss | dB | ≥16 | |
| Optical Output Return Loss | dB | >45 | |
| *Optical Laser turn ON Level | dBmV | 15 | Customer’s request available |
| dBuV | 75 | ||
| *Optical Laser turn OFF Level | dBmV | -4 | Customer’s request available |
| dBuV | 56 | ||
| Laser Rise Time | ms | ≤1.3 | |
| Laser Fall Time | ms | ≤1.6 |
Others
| Parameter | Unit | Value | Condition |
| Voltage | V/DC | 12 | 100~230V power supply adapter |
| Power Consumption | W | < 5.5 W | Included power supply adapter |
| Operation Temperature | ℃ | -20~55 | Humidity 5~95%, non condensing |
| *Optical Connector | / | SC/APC | Customer’s request available |
| RF Connector | / | F | |
| Dimensions | mm | 172*103*41 | |
| Weight | Kg | 0.4 |
Welcome to get a quote of PL20-3A RFoG Optical Node MDU from us.
PL20-3A: High-Performance 1.2GHz RFoG Optical Node for MDU Applications
A carrier-grade RFoG terminal delivering high-power RF output and digital precision for modern FTTB and DOCSIS 3.1 infrastructure.
- DOCSIS 3.1 Full Spectrum: Engineered to support the evolving cable landscape, this rfog optical node provides a massive 1218MHz (1.2GHz) bandwidth, ensuring zero bottlenecks for 4K video and multi-gigabit data services.
- Advanced Digital Control: Moving beyond legacy analog trimmers, the PL20-3A features digital control buttons for precise gain and slope adjustments, significantly improving installation accuracy and long-term stability.
- SCTE 174 Standardized： Fully compliant with SCTE 174 2010 protocols, including specialized Burst Mode upstream transmission to eliminate Optical Beat Interference (OBI) in shared fiber environments.
- MDU-Strength Output: Delivers a stabilized RF output level of up to 112dBµV via an integrated Optical AGC (-6 to +2dBm), providing enough power to feed multiple subscribers from a single floor-mounted node.
- Flexible Upstream Splits: Offers global compatibility with multiple diplex filter options (42/54MHz, 65/86MHz, or 85/105MHz) to match existing CMTS and return path headend configurations.
Technical FAQ: PL20-3A RFoG Optical Node
Q1: How does the digital control buttons benefit MDU deployments?
A: The PL20-3A rfog optical node replaces traditional potentiometers with digital control buttons. This prevents “setting drift” caused by temperature changes or vibrations and allows technicians to replicate exact gain and slope settings across multiple building levels, ensuring uniform signal quality for all tenants.
Q2: What is the noise performance of this rfog optical node?
A: With an Equivalent Noise Input (ENI) of <7 pA/√Hz and a high C/N ratio of 50dB, the PL20-3A maintains excellent signal-to-noise performance even at the high 1.2GHz frequencies required for DOCSIS 3.1. This is critical for maintaining high-order QAM modulations at the terminal end.
Q3: Can the return path laser be customized for CWDM?
A: Yes. While the standard upstream wavelength is 1610nm, as a specialized factory, Premlink can equip the rfog optical node with 1310nm or any CWDM wavelength (1270-1610nm). This allows operators to multiplex multiple RFoG nodes onto a single fiber using a CWDM Mux/Demux to save fiber resources.
Scaling up with GPON Pass?
If your MDU project requires co-existence with fiber broadband, consider our
PL20-4A RFoG MDU
which includes an integrated GPON pass-through port.
