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Triple Play Communications

Fiber Optic and Electronic Product Design and Manufacturing


PM-10XX: In-line Optical Power Meter

The PM-10XX series of modules provide in-line optical power monitoring in a small, portable, cost-effective solution for use in remote network monitoring applications as well as insertion loss or cable testing in a production or R&D environment.  This in-line optical power monitor is available in configurations from 1 to 12 channels and provides both Absolute and Relative power setting modes.  The user can switch from Absolute to Relative power display mode in order to compensate for a specific amount of loss in a given test setup.  When Relative mode is selected, the reference power level is displayed in dBm under the Relative offset power on the GUI.  Both in Absolute and Relative modes, the user can also select to display the minimum and maximum power detected at the input.  This is useful for detecting power variations during unattended operation.

The module uses 2% bidirectional optical taps to minimize to total throughput insertion loss.  An onboard temperature sensor allows the power monitoring circuitry to be calibrated during production test to provide measurement resolution of ±0.01 dB and linearity (relative accuracy) of ±0.1 dB over an operating temperature range of 0°C to 40°C.

The PM-10XX configuration can be USB powered and connects directly to a Windows based computer which runs the graphical user interface (GUI) software.  The USB GUI provides complete control and status of all optical switching and power monitoring functions.

An AC/DC adapter is also provided to power the PM-10XX when its Ethernet interface is used to allow it to be controlled using either Static or Dynamic IP addressing.  In this configuration, a standard HTML browser (e.g. Firefox, Chrome, Internet Explorer) provides the user interface and the various control and status HTML pages are integrated into the module’s firmware.

It is also possible to perform remote, time stamped, power monitor data logging using PM-10XX applications written for Windows and for Linux. These applications use the IP address of the module to gather the power monitoring data every second and write that data, along with the host computer’s system time, to a .csv file. This allows the user to remotely collect and track optical power information over long periods of time.

Please download the PM-1000 Demonstration GUI which is a self-extracting installer .exe file that runs on any Windows XP, Vista, 7, or 8 platform. It demonstrates the USB based control and status for a PM-1000 module.