Keysight unifies multi-speed Ethernet performance test for data centres

Layer one to three Ethernet testing is provided on a single platform by Keysight’s AresONE-M 800GE. It supports data centre interconnect speeds from 10GE to 800GE and validates network equipment interoperability and bandwidth performance to support transition to 800GE, said the company.

Data-intensive applications such as AI, high resolution video streaming, the IoT, 5G, edge computing and cloud computing require a secure and reliable 800GE network infrastructure, Keysight explained. Deploying 800GE into existing network infrastructures creates complex testing challenges for network engineers, introducing a variety of new and legacy networking protocols, multiple Ethernet speeds and an array of fibre and copper data centre interconnects (DCI). To properly validate the performance of network infrastructures and network system designs, equipment manufacturers and network operators must have a flexible test platform that can scale to evaluate mixed-speed networks while supporting a broad set of connections and network protocols.

The Keysight AresONE-M 800GE delivers the only Layer 1 to Layer 3 Ethernet networking and infrastructure test, said Keysight, supporting comprehensive DCI speeds from 10GE to 800GE in a single platform. Its range of capabilities enables design engineers and data centre operators to validate networking equipment interoperability and bandwidth performance while supporting the transition to 400GE and 800GE networks with the capability to also test slower, legacy Ethernet speeds.

In addition to comprehensive Ethernet speeds of 1x 800GE, 2x 400GE, 4x 200GE and 8x 100GE, it supports PAM4 and NRZ signalling. The AresONE-M 800GE features 106.25Gbit per second host electrical lane signalling with the ability to downshift to the lower electrical lane speeds of 53 and 25Gbits per second for 400GE and 100GE speeds.

The single test platform supports all required forward error correction (FEC) types and a full array of in-depth link tuning, stability, reliability, and performance measurement statistics.

It also provides the protocol support required to test enterprise, metro, and cloud-capable Layer 2 and Layer 3 switching and routing network equipment through the IxNetwork software application.

It is claimed to have the highest port density available today for 800GE test systems with support for eight ports in a single, two-rackmount unit chassis with additional configurations for two and four ports.

The AresONE-M 800GE uses an integrated physical layer digital signal processor (DSP) from Credo Technology Group for fast and efficient data transfer with low latency that enables data transit requirements of hyperscalers, enterprises, 5G carriers and service providers. The DSP is also claimed to optimise power consumption to reduce operational costs, minimise heat dissipation and meet energy-efficient standards for advanced networks.

http://www.keysight.com 

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Optical spectrum analyser MS9740B reduces test time for laser diode production

Contributing to improved laser diode chip production efficiency, Anritsu has introduced the measurement function MS9740B-020 for the optical spectrum analyser MS9740B model. It evaluates a pulsed laser diode chip, reducing the test time and contributing to improved production efficiency of high power laser diode chips, said the company.

Laser diode chip manufacturers and optical equipment vendors evaluate the optical spectrum of chips during manufacturing. Market demand for high power laser diode chips is driven by higher communication bit rates and longer lidar detection ranges.

There are also new use cases, such as external laser small pluggable (ELSFP) modules for co-packaged optics applications, which are expected to accelerate demand. The continuous wave (CW) output from a high power laser diode chip is subject to power drift and wavelength shift as the chip temperature rises. This is prevented by suppressing the temperature rise by using pulsed laser diode chips. Currently, testing of pulsed laser diode chips during production takes longer because an external trigger signal is required to synchronise with the pulsed laser diode chip.

The MS97040B-020 is rugged in design and reduces tact time for pulsed laser diode  chips and accelerates optical spectrum evaluation by eliminating the need for a trigger signal, explained Anritsu.

It also assures measurement reproducibility for even high power laser diode chips, added the company with measurement reproducibility of ±1.4 dB for side mode suppression ratio (SMSR). Low SMSR variation improves the chip yield and helps production efficiency.

Anritsu has been providing communications test and measurement solutions for 128 years. Anritsu’s philosophy engages customers as true partners to help develop wireless, optical, microwave/RF, and digital solutions for R&D, manufacturing, installation, and maintenance applications, as well as multi-dimensional service assurance solutions for network monitoring and optimisation.

Anritsu also provides precision microwave/RF components, optical devices, and high-speed electrical devices for communication products and systems. It develops advanced solutions for 5G, M2M, IoT, as well as other emerging and legacy wireline and wireless communication markets.

Anrtisu has offices throughout the world and employees in over 90 countries.

http://www.anritsu.com       

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TiePie releases instrument to wirelessly synchronise multiple oscilloscopes

The WCMI-8 is a long range wireless multi instrument synchronisation module, capable of operating over 400m. It allows multiple scopes to be combined into a single instrument, said Dutch company, TiePie Engineering.

The WCMI-8 module can operate with the WiFiScope and Handyscope series 5 and 6 instruments. The WCMI-8 module is placed on the extension connector at the rear of each oscilloscope and the multi-channel oscilloscope software automatically

detects how many instruments are equipped with a WCMI-8 module. All detected oscilloscopes, connected via WiFi, LAN or USB, are combined to a single oscilloscope with a total number of channels that equals the sum of the number of channels of the detected oscilloscopes. The WCMI-8 module has an internal automatic time synchronisation system that takes care that all sample clocks of the oscilloscopes are synchronised. When a trigger occurs on one of the selected channels, all oscilloscopes will be triggered simultaneously and all signals will be synchronously visible on the display.

The wireless multi instrument synchronisation modules can be used both indoors as in the open field. They have a built-in RSSI meter to check the receive signal strength of each module.

For synchronous measurements at multiple locations that are up to several hundred meters apart, or fully galvanically isolated from the computer and each other, TiePie recommends using the WCMI-8 module, in combination with a TiePie engineering oscilloscope. High speed sampling at 100 Msamples per second and 16bit high resolution measuring are supported by the WCMI-8 module. As there is no need for long cabling between the scopes and the computer and with no complicated setup. TiePie said installation is simple and hassle free installation.

Founded in 1987, the Dutch company TiePie Engineering manufactures computer controlled test and measurement equipment, such as WiFi, LAN and USB pscilloscopes, arbitrary waveform generators, function generators, spectrum analysers, protocol analysers, data loggers and multimeters. Products offer features such as real time SureConnect connection testing, SafeGround protection and combining multiple instruments using TiePie’s CMI bus. TiePie’s compact oscilloscopes, function generators and other data acquisition products are used worldwide in many markets, including industrial process automation, automotive test and measurement, service departments, medical applications, research centers and educational institutes.

http://www.tiepie.com

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Modular two-port vector network analyser can measure up to 100m

Vector network analysers (VNAs) from Anritsu offer performance and cost advantages up to 43.5GHz, said the company. The ShockLine ME7869A series conducts long distance, full vector S-parameter measurements over distances up to 100 meters.  —

Anritsu has released three models in the distributed modular two-port vector network analysers operating up to 8GHz, 20GHz and 43.5GHz, respectively provide unprecedented cost efficiency, flexibility, and ease of use to a variety of existing and emerging commercial and military antenna design applications.

The ME7869A is configured with two MS46131A 1-port VNAs that can each be directly connected to the antenna under test (AUT). Cable length for each VNA module can be equal or different lengths, depending on the application. It eliminates the need for long RF coaxial cables that create high loss, and phase and magnitude instability. The design addresses the need to accurately and repeatably measure antennas over long distances, such as in anechoic chambers and antenna test ranges. 

Anritsu’s PhaseLync synchronisation technology enables two MS46131A VNAs to phase synchronise with each other over the full 100 meter distance. PhaseLync improves dynamic range and measurement stability of S-parameter measurements by eliminating the need for long cables necessary with conventional benchtop VNAs.

The distributed modular VNA solution in the MN25132A control module simplifies installation. It acts as a junction for the cables and supplies power to the two MS46131A VNAs. There is no need to attach separate power supplies to the two VNA heads. The control module also interfaces the two VNAs to a laptop configured with ShockLine software, explained Anritsu.

The ShockLine ME7869A brings can be used in an insertion loss application that requires long cable runs at frequencies up to 43.5GHz compared to alternative expensive benchtop VNAs that require superior dynamic range. For example, it can be used in satellite, materials measurement, aerospace and defence and signal integrity environments. 

http://www.anritsu.com 

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