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. AON121X is a 1.2G Hz features a modular design for flexible applications. It has microprocessor control, a digital display, and an easy-to-use engineering debug interface. It has highly-optimized circuit design using SMT process production for smooth photoelectric signal transmissions. It has good RF attenuation with high accuracy with its use of a specialized RF attenuation chip. It uses GaAs technology to achieve high gains and low distortion, and has excellent AGC performance. AON121X node suits the last mile fiber deep access networks and also provides the optional HMS interface to support the remote monitoring capability in advanced network management system.

·        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

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

Burst Mode (Optional)
Optical Output Power (When there is no burst signal input)	dBm	-30
Laser Turn On Threshold	dBμV	≥70
Laser Turn Off Threshold	dBμV	≤62
Laser Turn On Time (t1)	us	0.5≤ t1 ≤1
Laser Turn Off Time (t2)	us	0.5≤ t2 ≤1.5