Fronthaul 6000 modules Ericsson's Fronthaul 6000 family is a combination of active and passive units providing Operators with efficient optical connectivity. Based on Wavelength Division Multiplex (WDM), Fronthaul 6000 includes the following components: • Innovative Filter modules, in service upgradable and designed to serve any network topology. • Coloured SFP+ / SFP28 optical modules, certified for secure interworking with Ericsson Products. • Extra low Latency Transponders offering grey to coloured conversion. Fronthaul 6000 can transport any mix of services including Common Public Radio Interface (CPRI), evolved CPRI (eCPRI), Open Base Station Architecture Initiative (OBSAI) and Ethernet (Eth). Thus, although Fronthaul's primary application is for Radio Area Network Centralization (C-RAN), it can additionally be used for several other types of connectivity: • Remote Radio Units (RRU) to Basebands (BBU) • Remote Baseband Units (RBU) to Router Fronthaul 6000 ensures Operators minimize their fibre lease costs by multiplexing different services via coloured wavelength. Fronthaul 6000 total capacity is up to 600Gb (24 services @25GB) on a single fibre strand. Fronthaul 6000 supports many network topologies, including Chain, Point-to-Point (PTP) and Point-to-Multipoint (P2MP) applications, with or without optical protection. GPON and XG(S)-PON coexistence are also possible via dedicated filters The Fronthaul 6000 family includes a smart set of passive WDM modules that can be quipped in both passive and active units. These modules came in two main variants: Units and Cassettes and are both based on single fiber working technology. They are mostly filters: mux/demux or optical add drop and can be cascaded and combined. This allow each Fronthaul site to be either upgraded with more services or cascaded to another remote site without affect the existing traffic. Fronthaul 6000 modules work with standard duplex SFP+/SFP28 optical pluggable and are based on WDM single fiber architecture (Single Fiber Working, or simply SFW). The optical transceivers can operate in principle with all types of fiber (ITU-T G.652, G.653, G.654, G.655 and G.655 LEAF, G.657 A1/A2 and the corresponding IEC/TIA SM fiber) Fronthaul 6000 modules support up to 24 end-to-end DWDM connections (i.e. 48 wavelengths) transported over the same single optical fiber: this is possible using different wavelengths in the upstream (i.e. Radio to Baseband) and downstream (i.e. Baseband to Radio) direction. In addition, Fronthaul 6000 modules also foresees a low-channel CWDM point-to point application, supporting up to 3 services (i.e. 6 wavelengths). Filters based on DWDM support 48 wavelengths channels of the ITU 100-GHz C-band DWDM grid. Filters based on CWDM supports 6 wavelength channels of the ITU 20nm CWDM grid. SE-164 80 Stockholm, Sweden © Ericsson AB 2018 www.ericsson.com

Unit Name Description Type (Unit / Cassette) WDM Frequencies (where applicable) Telefonaktiebolaget LM Ericsson SE-164 80 Stockholm, Sweden