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ABACUS METERING OPTICAL COMMUNICATIONS PROBES
ABACUS A9U Optical Probes are compatible with meters manufactured by Aclara, Itron, L+G, Sensus, Honeywell, Schneider, TransData, and many more. The ABACUS A9U offers advanced security of being made in America and using "virtual serial port drivers" obtained via the Windows 10 update feature.
What is the difference between IEC and ANSI? The shape of the head is "D" shaped ANSI or "round" IEC
ABACUS Driver Installation
In most cases, plugging in the Abacus Optical Probe in to the USB port of the computer will use the Windows Update feature to automatically retrieve the drivers and install them for use with the probe for Windows 10/11 and other Windows operating systems. Then navigate to Device Manager and Ports and check for an entry for “USB Serial Port”. If installed correctly the Drive Manufacturer (in the Properties, Driver tab) will show up as FTDI (the manufacturer of the USB chip and driver for the Probe) and the Probe can be used with the listed COM port. It may be possible to change the COM port assignment by accessing Properties, Port Settings tab, Advanced button, and COM Port Number entry, if a lower COM port number is desired for software compatibility.
ABACUS Dallas Factory
ABACUS Probes are proudly manufactured here in our ISO9001 registered factory in Dallas, Texas.
The History of ABACUS Electrics
UK Designed by Philip Plunkett
In 1993 Philip began the Abacus Electrics designs after previously spending time designing at the EMI record labels' London EMI Central Research laboratories, and at Dolby Labs designing and installing professional audio equipment. Installations included the Abbey Road Studio, and installing on the sets of The Who's 'Tommy', The Rocky Horror Picture Show and the first Star Wars film.
The ABACUS probes designed by Philip, are recognized to be multi-vendor compatible with the widest range of meters to meet all of your needs in a single model.
Pete Pfeifer
July 26, 2025
This device works great. We have used them for years, in all sorts of weather, and have had very few failures. Great product
Luis Obregon
July 19, 2025
Trabajan excelente y llegó a tiempo
George F Katich
June 6, 2025
Half the price of the same product that SQ-D Schneider offers. Drivers work well with different operating systems & software.
Richard Roder
May 30, 2025
quality product.
Joe and Jane User
May 20, 2025
The A9U-P-U04M-2A USB to Optical Interface meter cable by Abacus is made in the USA. This cable worked with an Ion 7330 meter via the optical port. I did try this cable on some of our older meters, but software issues were to blame, and not this cable. This is a short cable, so you will want a USB extension cord if using in the field. If your looking for a good made in USA optical cable for utility meters, this is a good choice.
William Majeski
February 16, 2025
Prompt service no problems
Reviewer73
November 19, 2024
The A9U cable is a 6ft cable as the description says, ignore the listing information which shows "Size: 10 FT" which is incorrect. The cable works as described and works without any special drivers, just the Windows 10 virtual serial port drivers.
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