nritsu Corporation is releasing two upgrades on

January 31 , 2017 to strengthen the company ’ s 32

On the other hand , the BER of the 4-level PAM4 signal is measured like the NRZ method by splitting into two binary signals at the PAM4 decoder . Furthermore , confirming the

Quality Analyzer MP1800A series .

correlation with simulation results requires use of an

The newly developed G0375A 32 Gbaud Power PAM4

Converter and G0376A 32 Gbaud PAM4 Decoder with CTLE support the PAM4 * 1 input tests and BER * 2 measurements

equalizer circuit such as a Continuous Time Linear Equalizer

( CTLE ) and BER measurement of a signal corrected for transmission path loss .

defined in the next-generation 200GbE / 400GbE * 3 and CEI-

Anritsu expects that its signal source for implementing 32

56G * 4 standards .

Gbaud * 7 PAM4 BER measurements and BER measurement

solutions will play a major role in development of nextgeneration

Development Background

Faster communications speeds between servers and network devices are being investigated to help cope with the recent explosive increase in data traffic . The

200GbE / 400GbE next-generation Ethernet standard not only uses faster symbol rates and multiple lanes to increase transmission capacity per unit time but also used PAM

PAM4 communication standards .

Outline of PAM4 Signal Evaluation using G0375A / G0376A and MP1800A Series

The Signal Quality Analyzer MP1800A is a plug-in module type Bit Error Rate Tester ; the built-in 32G multichannel

PPG and ED modules assure multichannel , high-quality signal generation and high-input-sensitivity measurement .

( pulse amplitude modulation ).

The newly developed G0375A and G0376A are remote

Like the NRZ * 5 method , evaluation of PAM4 optical communications modules requires a high-amplitude test signal for direct-driving the optical modulator performing

heads for addition to the MP1800A series 32G PPG / ED to extend measurement support for both NRZ and PAM4 measurements using NRZ measuring instruments .

the electro-optical conversion . Additionally , evaluation of

Combining the G0375A with the 28G / 32Gbit / s PPG

EA Modulators * 6 must take non-linearity of the optical

MU183020A converts 32 Gbit / s NRZ signals to PAM4

output level into consideration and requires a signal source

signals to output a high-amplitude signal of 4.4 Vp-p

supporting independent adjustment of the PAM4 signal

( differential , max .). Additionally , the 3ch PPG

3Eye amplitude .

synchronization function for independent control of the

PAM4 signal 3Eye amplitudes enables high-reproducibility