Optical time-domain reflectometer (OTDR): Optical wavelength : 1310 nm / 1550 nm, Wide measuring range ≤ 105 km ; Optical power measurement: Range : -70 ... +10 dBm ; VLS (VFL) - Visual Fault Locator of fiber cable: Laser LD ; Video standard: AHD, HD-CVI, HD-TVI - 8 Mpx, TCP/IP - 8K, CVBS - PAL / NTSC ; Display: 8 " IPS - capacitive touch screen, 1920 x 1200 px ; Video input: 1 pcs AHD / HD-CVI / HD-TVI / HD-SDI / CVBS - BNC socket, 1 pcs HDMI 1 pcs VGA ; Video output: 1 pcs HDMI 4K ; Port LAN: 2 pcs - PoE cameras and switches support ; Serial ports: RS-485 ; Wi-Fi module; Identification the wire in the group of wires; Digital multimeter: Measurement : voltage, current, resistance, continuity test, diode test, electrical capacity ; Main features: Supported image compression methods : H.265, H.264, MJPEG ;