Ascent Communication Technology

AON121 Mini Node

AON121 Series FTTH mini node supports Video Overlay application over FTTH optical fiber access network. It operates on 1218MHz RF bandwidth, with high output power up to 83 dBµV (AGC). AON121 has low power consumption and optional built-in WDM to support PON signal pass-through. It is part of ACT Deep Fiber and FTTH solution, which helps operators provide superior video services in a FTTH PON network architecture.

• 1002or 1218 MHz RF Spectrum for superior video services

• Small form factor and low power consumption

• Low noise circuit (3.5 % modulate, -10 dBm receive, CNR ≥ 42dB)

• High output power up to 74 dBµV for MDU application

• Excellent linearity at wider optical receiving range +2 dBm to -20 dBm

• Flatness less than ±1.0 dB in the range of 47 MHz to 1002 MHz

• Metal shell, supply safeguards to opto-electrical sensing device

• Optional built-in WDM provides PON pass-through capability in a FTTH optical passive network

• Powered directly using the power adaptor

• The compact enclosure fits easily in CPE, ONU housing or network termination boxes

Downstream Specifications (Receiver)
CATV Wavelength Range	1540 nm to 1560 nm
PON Pass Channel Wavelength (GPON and XGS PON)	1260 nm to 1330 nm 1470 nm to 1510 nm 1575 nm to 1650 nm
Optical Input Power	‑17 to +3dBm (‑7 dBm to +3 dBm for analog TV signal) ‑14 dBm to 2dBm (1550 nm LED Green) ‑16 dBm to ‑14 dBm (1550 nm LED Orange) ≤‑16 dBm or ≥2 dBm (1550nm LED Red)
Optical Return Loss	‑55 dB
WDM Insertion Loss	≤1 dB
Channel Isolation (GPON)	≥35 dB
Responsivity	≥0.9 A/W @ 1550 nm
Channel Isolation (CATV)	≥18 dB
RF bandwidth:	47 MHz to 1218 MHz
Output Level	92 dBµV @ +3 dBm, 82 dBµV @ ‑2 dBm, adjustable (MGC) 82 dBµV @ ‑7 dBm to +3dBm (AGC)
Output Level Adjustment	0 dB to 20 dB
RF flatness	±0.75 dB
RF return loss	≥14 dB
RF input impedance	75 Ω
RF Connector	F‑Female
Link Performance
CNR	48.0 dB (60 PAL‑D, ‑8dBm receive, 3.8% OMI)
CTB	‑65 dBc
CSO	‑65 dBc
HUM	‑60 dB
General Specifications
Optical Connector	SC/APC, SC/UPC, LC/PC
Operating Temp	‑20 °C to +50 °C
Storage Temp	‑40 °C to +85 °C
Power Supply	+12 V_DC
Operating Relative Humidity	5 % to 95 % RH (non‑condensing)
Power Consumption	≤3 W
Dimensions (W × D × H)	48 mm × 88 mm × 22 mm
Weight	0.4 kg
Ship Weight	5 kg (Packed in carton boxes of ten units)