... . The Fiber Optical Power Meter to measure the power of Video Fiber Optic Transmission equipment, and testing the Fiber Optic Patch Cord, etc. ... channel BNC Input & 1 channel OutputVideo Output Mode1.0 Vp-pPTZ controllerCommunicationRS232, RS422 simplex and RS485PTZ ProtocolCompatible with ... range-6600~+6600AC/DC Voltage0-600V Auto/Manual ranging, 0.1mV resolutionAC/DC Current6.6mA, 66mA, 660mA, 10A ...