Ascent’s AON2212C outdoor optical node can be configured 2 forward path optical receiver
modules, 2 return path optical transmitter modules, 1 Ethernet transponder module and 2
switching power supply modules at most. Adopts advanced optical AGC technology, the
output level and output slope both adopt the electric control circuit. Add LED nixie tube
display function, the forward path output signal ≥116 dBμV.
Forward path optical receiving part adopts advanced optical AGC technology, the input optical
power range extended to -8 to +2dBm.
Forward path optical receiving part: RF operating bandwidth extended to 1GHz, each way
maximum output level up to 116dBμv.
Full electric adjust attenuation and equilibrium control circuit, and achieve remote operation by
NMS.
RF amplifier part adopts quick plug modular design, can quickly replace RF amplifier module
without dismantling the RF cable connector.
Built-in perfect condition monitoring circuit, and support Ethernet transponder.
Reserved C-CMTS forward path and return path RF interface, support DOCSIS EOC networking
scheme.
The performance parameters of this manual according to the measuring method of GY/T 194-
2003 < Specifications and methods of measurement on optical node used in CATV systems >,
and tested in the following conditions.
1. Forward optical receive part: with 10km standard optical fiber, passive optical attenuator and
standard optical transmitter composed the testing link. Set 59 PAL-D analog TV channel signal at
range of 45/87MHz to 550MHz under the specified link loss. Transmit digital modulation signal at
range of 550MHz to 862/1003MHz, the digital modulation signal level (in 8 MHz bandwidth) is
10dB lower than analog signal carrier level. When the input optical power of optical receiver is -
1dBm, the RF output level is 108dBμV, with 8dB output slope, measure the C/CTB, C/CSO and
C/N.
2. Return optical transmit part: Link flatness and NPR dynamic range are the link indexes which is
composed of return path optical transmitter and optical receiver.
