Descriptions Clear-Com TW-12C, CC/RTS system interface Clear-Com TW-12C feature has two identical 2-wire-to-4-wire hybrid networks break the ground loops that occur when two systems are run from separate power sources. Clear-Com TW-12C also has a built-in setup tone and range of null adjustment controls lets users quickly set up the panel and allow adjustments while the system is operating. CC/RTS system interface: Clear-Com/RTS system interface - 1RU rack mount. Interface a single intercom channel. Clear-Com to Clear-Com or Clear-Com to RTS systems. Clear-Com TW-12C Product Features Clear-Com/RTS System Interface System isolation for: Clear-Com to Clear-Com, Clear-Com to RTS, RTS to RTS Eliminates grounding problems between intercom systems Matches gains between systems Passes through and translates signaling Hybrid nulling up to 40 dB Built-in setup tone Powered directly from connected intercom system Eliminates Hums and Buzzes Rapid Setup and Adjustments Specifications Line CharacteristicsMax Level Before Clipping : >=3dBuImpedance: >=10KΩSignalingReceive: =11VDCRTS FormatLine CharacteristicsMax Level Before Clipping : >=5dBuImpedance: >=10KΩGeneral CharacteristicsFrequency Response:Partyline – Partyline: 200-8KHzSignaling ToneSend frequency: 20kHz ±100HzReceive frequency: 20kHz ±500HzSend level: >=-6dBuReceive level: =4dBRTS – Clear-Com: >=-1dBRTS – RTS: >=4dBMin GainClear-Com – RTS: