Ascent Communication Technology

AON121X Series 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.

Item	Unit	Technical Parameters
Forward Optical Parameters
Receiving Optical Power	dBm	-8 to +2
Optical Return Loss	dB	>45
Optical Receiving Wavelength	nm	1100 to 1600
Optical Connector Type		FC/APC, SC/APC or specified by the user
Fiber Type		Single Mode
Link Performance
C/N	dB	≥ 51 (-1dBm input)
C/CTB	dB	≥ 65	Output Level 106dBμV EQ 8dB 79ch PAL-D
C/CSO	dB	≥ 60
Forward RF Parameters
Frequency Range	MHz	54/85/105/258 -1003/ 1218
Flatness in Band	dB	±0.75
Rated Output Level	dBμV	≥ 106
Max Output Level	dBμV	≥ 108
Output Return Loss	dB	(54/85/105/258 to 550MHz)≥16/(550 to 1218MHz)≥14
Output Impedance	Ω	75
Electronic Control EQ Range	dB	0 to 15
Electronic Control ATT Range	dBμV	0 to 20
Return Optical Parameters
Optical Transmit Wavelength	nm	1310±10, 1550±10 or specified by the user
Output Optical Power	mW	0.5, 1, 2
Optical Connector Type		FC/APC, SC/APC or specified by the user
Return RF Parameters
Frequency Range	MHz	5 to 42/65/85/204
Flatness in Band	dB	±0.75
Input Level	dBμV	72 to 85
Output Impedance	Ω	75
NPR Dynamic Range	dB	≥15 (NPR≥30 dB) Use DFB laser		≥10(NPR≥30 dB) Use FP laser
General Performance
Supply Voltage	V	A: AC (150 to 265)V; B: AC (35 to 90)V
Operating Temperature	°C	-40 to 60
Storage Temperature	°C	-40 to 65
Relative Humidity	%	Max 95% no condensation
Consumption	VA	≤ 20
Dimension (L×W×H)	mm	280 x 260 x 70
Net Weight	kg	2.8