Optelecom-NKF's eight-channel Siqura A-80 offers a compact audio and contact closure (CC) solution for an existing or new CCTV system. The lip-synchronization solution is used in combination with the supplier's Siqura multi-channel video codecs. The audio inputs support either line-level or microphone-level with additional biasing to power electret microphones. Eight digital inputs can be configured to initiate CC signals, for example, to activate a network video recorder (NVR) to start recording. Four digital outputs are also available, allowing the unit to connect with third-party devices, such as a programmable logic controller. The product is designed to comply with worldwide adopted standards for streaming audio.