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AON121X 1.2 GHz Optical Node

AON121X Series 1- or 2-port two-way Optical Node is part of ACT Deep Fiber solution, which has been designed to deliver interactive CATV, high capacity DOCSIS Data and other advanced services. The cost-effective node platform helps service providers expand bandwidth of their existing HFC network while minimizing capital investment.

    High response PIN photoelectric conversion tube.

    Optimized circuit design, SMT process production, optimized signal path, make the photoelectric signal transmission smoother.

    Specialized RF attenuation chip, with good RF attenuation and equilibrium linear, high accuracy.

    GaAs amplifier device, power doubler output, with high gain and low distortion.

    Single Chip Microcomputer (SCM) control equipment working, LCD display the parameters, convenience and intuitive operation, and stable performance.

    Excellent AGC performance, when the input optical power range is -9 dBm to +2 dBm, the output level remains unchanged, CTB and CSO basically unchanged.

    Reserved data communication interface, can connect with the Ethernet transponder, access to network management system.

    Return emission can select burst mode to sharply decrease the noise convergence and reduce the forepart receiver number.

    ONU module optional.

Optical Parameters

Operating Wavelength

1260 nm 1650 nm

Pass Wavelength

1540 nm to 1560 nm

Reflect Wavelength



Insertion Loss 

<0.7 dB

Isolation Com‑Pass

>35 dB @1490, 1577 nm

Isolation Ref‑Pass

>35 dB @1270, 1310 nm

Return Loss 

>45 dB


>0.85 mA/mW



RF Parameters


Optical Power

‑9 dBm to +2 dBm


≥51 dB

Output Level 106 dBμV

EQ 8 dB 79 ch PAL‑D

OMI = 3.5 %


≥63 dB


≥60 dB

Frequency Range

85 MHz to 1218 MHz


±0.75 dB

Standard Output Level

≥ 106 dBµV

Max Output Level

≥108 dBµV

Output Return Loss

≥16 dB

EQ Range

0 dB to 15 dB

 ATT Range

0 dBµV to 15 dBµV


Optical Wavelength

1611 nm

Output Optical Power

3 dBm, DFB

Frequency Range

5 MHz to 65 MHz

Flatness in Band

± 0.75 dB

Input Return Loss

≥16 dB

Input Level

72 dBμV to 85 dBμV

Output Impedance

75 Ω

NPR Dynamic Range

≥15 dB (NPR ≥ 30 dB)


Supply Voltage

 AC (150 to 265) V / AC (35 to 90) V

Operating Temperature

‑40 °C to +60 °C

Storage Temperature

‑40 °C to +65 °C

Relative Humidity

0 % to 95% (non‑condensing)


≤20 VA

Dimension (L×W×H)

280 mm × 260 mm × 70 mm

Net Weight

2.8 kg



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