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RON1512 1.2G Node

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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