... CCD 420(520) TVL Specifications : 1. Image Sensor : 1/3 '' SONY CCD 420(520) TVL2. DAY/NIGHT : Auto3. Lens : CS- ... , Exposal control , AES, AGC...12. Audio Compression : G.72213. Audio Stream : Two-way talk back , broadcast14. Audio Input/Output : Mic input/output , Built ... Power, Terminal block for 1 alarm input, 1output; 3.5mm mic in, 3.5 mm headphone out, RS485 (PTZ), Alarm I/O ...