surveillance system analog matrix switcher

{"cid":"91201324","title":"Custom Made 4 In 12 Out Video Matrix Switcher For Smart Meeting Room","imgUrl":"https:\/\/img.chinax.com\/nimg\/2a\/d1\/95d2bd903c0349b77b07d4b1e7be-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"VINCAN","Model Number":"WL-HDVM","Minimum Order Quantity":"1 pcs","Delivery Time":"2-3 days","Certification":"CE,FCC and RoHs","Place of Origin":"Mainland China","Payment Terms":"T\/T, L\/C, Western Union, MoneyGram","Supply Ability":"100 pcs per week","Packaging Details":"Carton box and standard export package for Custom Made 4 In 12 Out Video Matrix Switcher For Smart Meeting Room","Input ports:":"4 x HDMI","Output ports:":"8 x HDMI and 4 x 3G-SDI","Product name":"Custom Made 4 In 12 Out Video Matrix Switcher For Smart Meeting Room","Control method":"RS232, Ethernet,IR,Panel key","Warranty time":"1 year","Color":"Black"}}

{"cid":"91200109","title":"1 Channel DVI Video to Fiber Converter Data Transmission from Control Center to Camera DC 5V1A Operating Voltage","imgUrl":"https:\/\/img.chinax.com\/nimg\/c8\/be\/5d5ca380a48b4e514c88c73f3715-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Olycom","Model Number":"OM615-8V\u21911D\u2193WT\/R","Minimum Order Quantity":"1 pair","Delivery Time":"4~8 working days","Certification":"CE RoHS FCC","Place of Origin":"Shenzhen, China","Payment Terms":"T\/T, Paypal","Supply Ability":"1000 pairs per week","Packaging Details":"1 pair in a box, 2.00kg(G.W)","Output Power":"-8~3dBm","Channel Quantity (Video)":"4ch, from camera to control center","Optic Fiber":"Single mode (9\/125um) 20Km, multimode (50\/125um) 1Km, (62.5\/125um) 500m","Optical Interface":"FC Standard, ST\/SC Optional","Wavelength":"1310nm\/1550nm","Data Protocol":"RS485","Channel Quantity (Data)":"1ch, from control center to camera","Video Compatible Systems":"NTSC\/PAL\/SECAM"}}