| Specification of F668 ONT | |
| Net dimensions | 34 mm(H)x220mm(W)x187mm(D) |
| Net weight | 0.58 kg |
| Typical Power consumption | 10W |
| Noise | Null |
| Heat dissipation mode | Natural heat dissipation |
| Power supply | Rated 12V DC 2A(through the external AC/DCadapter) |
| Installation | On the desktop, on the wall, and in the information box |
| Operating environment | 0-40℃ |
| Relative humidity | 5%-95% |
| Atmospheric pressure | 70 kPa-106 kPa |
| MTTR | 30 mins |
| GPON Interface Indices and Parameters | |
| Connector type | SC/APC |
| Number of PON | 1 |
| Fiber type | Single-mode fiber |
| Wavelength | Transmitting :1310 nm(PON) Receiving :1490 nm(PON) RF:1550 nm(CATV) |
| Compliance standard of the PON interface | ITU-T 984.x |
| Receiving rate of the optical interface | 2.488 Gbps |
| Transmitting rate of the optical interface | 1.244 GbpS |
| Transmission wavelength range | 1290 nm-1330 nm |
| Root-mean-square spectral width of the transmitting end | Less than 1 nm (-20 dB spectral width) |
| Output optical power | Minimum 0.5 dBm, maximum 5 dBm |
| Optical power of the transmitter in output OFF status | Less than -45 dBm |
| Extinction ratio | More than 10 dB |
| Receive range | 1480 nm-1500 nm |
| Saturation optical power of the receiver | 1:64 |
| Length of the optical link | 20 km |
Features of ONU
To better understand its functions, here are the key features of an ONU:
Triple Play Services: Supports data, IPTV, and VoIP services, catering to the needs of both residential and commercial users.
Bidirectional Data Transmission: Receives broadcast data from the OLT while sending back user-generated data through assigned transmission windows.
Ethernet Data Buffering: Temporarily stores Ethernet data before transmitting it to the OLT, optimizing data flow.
Remote Management via OAM: Enables remote Operation, Administration, and Maintenance (OAM), allowing service providers to monitor and configure ONUs efficiently.
Security and Quality of Service (QoS): Many ONUs offer enhanced security features and Quality of Service (QoS) support, ensuring reliable performance for different applications.
Applications of ONU
RF/CATV Port: Used for connecting to cable television.
Power Interface: Provides power connectivity.
USB Port: Typically a USB 2.0 interface.
LAN Port: Supports FE (10/100BASE-T) or GE (10/100/1000BASE-T) options.
Telephone Port: Also known as POT, VoIP, Voice, or FXS port.
Optical Port: Connects to the Optical Distribution Network (ODN).
Antenna: Provides Wi-Fi connectivity, supporting 2.4 GHz Wi-Fi or dual-band 2.4 GHz/5 GHz Wi-Fi.
Where is the ONU located in FTTx?
Depending on the FTTx (Fiber to the x) technology used, the ONU can be placed in different locations. Different types of FTTx technologies include:
FTTC (Fiber to the Curb): The ONU is placed at a distribution point near the curb or in a cabinet close to user premises.
FTTB (Fiber to the Building): The ONU is installed in a communication cabinet or wiring closet inside the building.
FTTN (Fiber to the Node): The ONU is located at a remote node or access point, typically serving a neighborhood or cluster of users.
FTTH (Fiber to the Home): The ONU is placed inside the home of the end-user.
