HG8540M is an optical network terminal (ONT), a high-end home bridge in an FTTH solution. Thanks to the GPON technology, access to ultra-wideband Internet is provided to home and SOHO users.
HG8540M is equipped with GPON SC/UPC, 1 Gigabit Ethernet, 3 Fast Ethernet ports.
HG8540M offers high performance transfer functions to provide an excellent VoIP, Internet and HD video service experience. Therefore, HG8540M provides the ideal terminal solution and future-oriented service support functions for FTTH deployment.
| Specification of HG8540M | |
| Number of LAN ports | 1x 10/100/1000BaseTX (RJ45), 3x 10/100BaseTX (RJ45) |
| PON standard | GPON |
| Wireless network standards | None |
| USB port | None |
| VoIP ports | None |
| Interfaces | |
| GPON | Class: B+ Operating wavelength: DS 1490 nm, US 1310 nm The sensitivity of the receiver: -27 dBm |
| Ethernet | 1 GPON port (SC/UPC) 1 port 10/100/1000MbE (RJ45) 3 ports 10/100MbE (RJ45) |
| Connection type | GPON (SC/UPC) |
Physical characteristics |
|
| Dimensions | 30 x 156 x 125 mm |
| Permissible operating temperature | 0 to 40 degrees C |
| Permissible air humidity | 5%-95% RH non-condensing |
| Power input | 100 - 240 V AC, 50 - 60 Hz |
| System power supply | from 11 to 14VDC. 0,5А |
| Static power consumption | 6W |
| Maximum power consumption | 9,2W |
| LEDs | POWER/PON/LOST/LAN |
| Functions | |
| VLAN | VLAN filtering. Transparent VLAN transmission |
| Multicast | IGMP snooping: v1/v2/v3. IGMP Proxy. Dynamically controlled multicast |
| Security | Filtering of MAC addresses |
| IPv6 | IPv6/IPv4 dual stack and DS-Lite |
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.
