Ascent’s RON1512 is a compact 1.2 GHz two-way node compatible with DOCSIC 3.1 FTTH architecture. It provides excellent forward and reverse path performance combined with high reliability and a user-friendly layout. RON1512 features an optical AGC function in the forward path to ensure the same RF output level in every home. The return transmitter has burst mode (turns on the laser by return signal) to greatly reduce return fibers.
• Supports 1.2 GHz RF pass band
• Single fiber WDM for forward and return path
• 1550 nm forward, 1610 nm return
• AGC optical input range of -10 dBm to 0 dBm
• 22 dBmV RF output level
• RF test points for forward and reverse path
• Push-button laser status switch
• Easy installation
• LED indicators for optical input, output and power
• Compact form factor
• Low power consumption
Forward Section Specifications
Item | Value |
Optical Section | |
Wavelength | 1540 nm to 1560 nm |
Responsivity | 0.8 A/W, λ = 1550 nm |
Optical Input Power Range | ‑10 dBm to 0 |
Optical AGC Range | ‑10 dBm to 0 |
Optical Return Loss | 45 dB |
Optical Connector | SC / APC |
RF Section | |
Frequency Range | 54 MHz to 1218 MHz (other optional) |
Frequency Response | ±0.75 dB |
RF tilt | 0 dB |
RF Output Level | 22 dBmV (‑10 ‑ 0 dBm optical Input, OMI 3.5 %) |
Return Loss | 16 dB min, 18 dB typ. |
RF Test Point | ‑20 dB |
Link Section | |
C/N* | 50 dB |
Distortion* CTB CSO |
60 dB 60 dB |
* RF output level is 22 dBmV (20 km fiber + passive loss, ‑3 dBm optical input power, 3.5% OMI). Loaded with 59 PAL D/K CW carriers from 47 MHz to 550 MHz. Digital refers to 550 MHz to 1 GHz loading with QAM carriers at ‑10 dB relative to analog CW carrier levels.
Reverse Section Specifications
Item | Description |
Laser Type | DFB |
Optical Wavelength | 1610 nm (others optional) |
Optical Output Power | 3 dBm |
Optical Return Loss | 45 dB |
Optical Connector | SC / APC |
RF Input Range | 15 dBmV to 40 dBmV |
Optical Power Turn On / Off Threshold | Complies with the SCTE 174 standard |
NPR Dynamic Range | 25 dB |
Transmitter Optical Power, High | 3 dBm (RF > threshold) |
Transmitter Optical Power, Off | ‑35 dBm (RF < threshold) |
Turn‑on Time | <700 ns |
Turn‑off Time | <700 ns |
RF Frequency Range | 5 MHz to 42 MHz (other optional) |
RF Frequency Response | ±0.75 dB |
RF Return Loss | 16 dB min, 18 dB typ. |
RF Test Point | ‑20 dB |
General Specifications
Item | Description |
External Supply Voltage | 12 V DC 350 mA |
RF Connectors | F‑female, Imperial |
RF Impedance | 75 Ω |
Dimensions (W × H × D) | 128 mm × 108 mm × 32 mm |
Weight | 0.2 kg |
Operating Temperature | ‑10 °C to +50 °C |
Note: Unless otherwise noted, all specifications reflect typical performance and are referenced to 20 °C (68 °F).
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