The LQ-4W2 is a compact box that enable connection of 4-wire audio devices over LAN, WAN or Internet IP infrastructures. The LQ-4W2 can interconnect with devices, such as analog ports of any matrix intercom systems, analog telephone circuits, two-way radio gateways and audio consoles.Main Features:Transport audio and call signaling over LAN, WAN and Internet networksWide range of bitrate settingsUp to 6 units can link together (both 4-wire and partyline)Multiple groups of six in any networkPower-over-Ethernet (PoE)External wall DC adapterLow-latency OPUS CODEC12 KHz frequency responsePoint-to-point and group audio routing2 Port 4-Wire DeviceProfessional etherCON connectorsCore Configurator Manager (CCM) SoftwareBrowser-based configuration for PC, MAC and TabletWeb server inside each device (no additional software needed)Specifications:Audio:Resolution: 12 bitSample Rate: 24KHzFrequency Response: 100 12KHzCODEC: OPUSInput Gain: -12dB to +12dBOutput Gain: -12dB to +12dBNetwork Setting:Bit Rates: 32, 48, 64, 128KbpsPacket Size: 5, 10, 20, 40, 60msJitter Buffers: 0 – 1000msConnectors:2 x EtherCON (female): 2 x Network2 x EtherCON (female): 2 x Audio I/OPartyline Output Current:Type: Clear-Com & RTSLocal DC Powered: 150mAPOE Powered: 70mAPower Supply:Plug-in adapter with sleeve locking connector (US, UK , Europe, AUS & China sockets included)Input: 100-240V, 47-63Hz, 0.58A MAXOutput: DC 12V, 2A, 24W MAXEnvironmental:Operating Temperature: +32F – +104F (0C – +40C)Storage Temperature: -67F – +158F (-55C – +70C)Humidity: 90%, non-condensingDimensions: 6.8in W x 1.79in H x 8.45in D (173mm x 46mm x 215mm) Weight 1.83lbs (.83kg)