Mer Groupoffers cable MSOs, ELEC/ILECs, and ISPs wishing to provide advanced multi-play services, flexible and cost effective FTTx network solutions based on various technologies (e.g. GPON, RFoG, and Active Ethernet).
The solutions allow delivery of multiple applications on a single fiber optic, including TV channels, high speed Internet, VoIP, IPTV, Wi-Fi, and homeland security services.
Optical Transmitters – The optical transmitter translates the electrical (analog & digital) signal from the head-end into an optical signal suitable for distribution. This signal is transmitted within the 1550nm wavelength band in order to allow optical amplification of this signal.
Erbium Doped Fiber Amplifiers (EDFA) – The Erbium Doped Fiber Amplifier (EDFA) amplifies the optical signal to a level appropriate for connecting the head-end to a large number of end-users. Depending on the number of users and their physical location, one or more EDFAs can be used.
Splitters – The splitters arrange the actual distribution of the signal to the various end-users. These are fully passive devices, not requiring any electrical power feeding or maintenance.
Optical CATV Receivers – The optical CATV receiver, located at the end-user’s premises, translates the optical input signal into an electrical signal, which is suitable for direct connection to conventional TV and Radio equipment.
Point-to-Point, Active Ethernet RF overlay solution
Our Active Ethernet or Point-to-Point solutions cover the entire path, from the head-end to the customer’s P2P CPE.
The RF signal is distributed from a standard RF head-end through an E/O 1550 nm laser transmitter and transported by a separate fiber network to the PoP station in the field.
An EDFA amplifies the signal and distributes it through an optimized design of splitters to the customer’s P2P CPE. The P2P solution offers a passive link across the entire path and a separate infrastructure for each household.
This ensures reliable connectivity, while supporting enhanced interactive features.
PON RF overlay solution
The PON RF overlay solution involves distribution of the RF signal from a standard RF head-end to the PoP station through an E/O 1550 nm laser transmitter on a separate fiber network.The primary and secondary signal routes may be optically protected through a protection switch. A PON coupler combines the RF signal with the data traffic from the PoP OLT, which uses a different wavelength (1490 nm), placing both wave-lengths on the same fiber PON and distributing them downstream through the splitters to the customer’s ONT/ONUs.
Typical FTTH networks utilize up to three wavelengths: 1490 and 1555 nm downstream to each home, and 1310 nm transmitted upstream. In some cases, only two wavelengths are used – one upstream and one downstream. At every subscriber home there is a triplexer or diplexer transceiver to manage these optical functions. Mer Group specializes in the design and manufacturing of Triplexers, which can be installed on the CPE, Chassis, LGX module or any other housing according to the customer’s requirements.