... 3.Used for communication equipments 1. FC, SC, ST, LC type adapter.2. PC,UPC,APC mode.3. FC, SC, ST, LC ... type pigtails (ribbon and bunchy), single core~12 core.4. optical ... fiber active connectorecho wastage≥45 dB(PC type); 50 dB(UPC type);60 dB(APC type); 6. temperature: -5°C~+40°C relative ...