PBT8856 28GBaud PAM4 BERT_Stelight Instrument

01:

General Information

The Stelight Instrument PBT8856 is a high performance, easy to use, cost-effective, Multi-channel 28Baud (56Gb/s) PAM4 BERT for current 200G/400G TOSA/ROSA components R&D and manufacturing environments as well as field installations. It is fully features for characterizing crosstalk susceptibility, backplanes, and multi- lane serial data systems, and it is also a good tool for production testing of AOC and electro- optical modules.

The PBT8856 incorporates an internal reference clock, a pattern generator with pre- emphasis and an error detector with CTLE equalizer, in one compact size which provides multi electrical channel interfaces at data rates up to 56Gb/s (PAM4) 28Gb/s (NRZ) for each lane.

The PBT8856 baud rate can be adjustable and with settable data pattern of QPRBS 2⁷-1, 2⁹-1, 2¹³-1,215-1, 2²³-1, 2³¹-1,

Square wave and a fixed 128-bit user-defined pattern. According to latest IEEE802.3bs

（D1P4）, the PBT8856 support PRBS13Q/31Q pattern with Gary Code. The BERT system is controlled by external computer via either USB port or 10M/100M Ethernet port, with full software support, drivers and programming guide for automation.

Scan the QR code to read on your phone

We could not find any corresponding parameters, please add them to the properties table

Key Benefits

1/4/8 independent parallel BERT lanes, which support PAM4 and NRZ；

Standard measurement rates , such as 25Gbaud, 25.78125Gbaud, 26.5625Gbaud and 28.125Gbaud (can extend to 56Gbaud later)；

Independent pattern/gating time/polarity for each channel；

Generator Support Test Pattern :

7, 9, 11, 13, 15, 16, 23, 31,their inversion

IEEE802.3bs (D1P4) PRBS13Q, PRBS31Q;

Square wave, JP03A, JP03B, transmitter linearity test pattern;

SSPRQ Pattern;

CID jitter tolerance Pattern;

PAM4 inverse Gary Coding, Polarization Inversion， PAM4 decoding, PAM4 MSB and LSB Swap

Common divided clock for 4 PAM4/NRZ channel；

Integrated 3-tap/7-tap de-emphasis and InnerEye tuner in pattern generator and CTLE equalizer in error detector；

Ability to inject error and swap data input polarity；

High signal quality, fast rise time and low intrinsic Jitter；

FEC Features: KP4/KR4 Mode; SYMBOL ERR PLOT; Pre/Post BER;

BERT can be fully programmed and support for external API calls from other software e.g. LabView, C#, VEE；

Repeatable performance and Traceable to standards；

High power mode: 1500 mVp-p

The Stelight Instrument PBT8856 is a multi-channel signal integrity test system ideal for manual or automated characterizing multi-lane serial data channels or electrical and optical devices.

Pattern Generator Detailed Character:

Pattern Generator	Min	Typ	Max	Units
Data Output (Electrical)输出数据
Output Type	Differential
Output Format	PAM4/NRZ
Termination	AC-Coupled
Data Patterns	PRBS Pattern:2⁷-1, 2⁹-1, 2¹¹-1, 2¹³-1, 2¹⁵-1, 2¹⁶-1, 2²³-1, 2³¹-1, user defined pattern QPRBS Pattern 2⁷-1, 2⁹-1, 2¹¹-1, 2¹³-1, 2¹⁵-1, 2¹⁶-1, 2²³-1, 2³¹-1, user defined pattern PRBS13Q, PRBS31Q (According to IEEE802.3bs(D1P4)) SSPRQ, JP03A, JP03B, Transmitter Linearity Test Pattern CID jitter tolerance pattern
Data Rates	2.5Gbaud, 10.3125Gbaud, 25Gbaud, 25.78125Gbaud, 26.5625Gbaud, 28.125Gbaud (can be extended to 56Gbaud later)
Modulation format	PAM4/NRZ
Error Injection	Support Single Error or fixed Error Ratio Injection
Channel numbers	8 PAM4 Channels(Opt.080) 4 PAM4 Channels(Opt.040)
Frequency Accuracy			± 50	Ppm
Output Amplitude (Differential)	300	800	1500	mVp-p
Data Rise Time, (20 – 80%)		<20		Ps
Data Output RMS Jitter		<800fs		Fs
Connector	50ohm Nominal, 2.4mm SMK Female

Trigger output

Differential divided trigger output is provided on the front-panel for each 4-Channels(Option 040) Switchable differential divided trigger is provided on the front –panel for each 4-Channels(Option 080)

Trigger Output	Min	Typ	Max	Units
Output Amplitude			>600	mVp-p
Output Type	Differential , AC-coupled
Connector	50ohm 2.92 SMK Female

Error Detector

A differential electrical input is provided on the front panel. Data rate is the same as pattern generator. The following patterns are supported:

Data Input	Min	Typ	Max	Units
Input Type	Differential
Modulation Formate	PAM4/NRZ
Termination	AC-Coupled
Data Patterns PRBS	2⁷-1, 2⁹-1, 2¹¹-1, 2¹³-1, 2¹⁵-1, 2¹⁶-1, 2²³-1, 2³¹-1, PRBS13Q, PRBS31Q
Data Rates	2.5Gbaud, 10.3125Gbaud, 25Gbaud, 25.78125Gbaud, 26.5625Gbaud, 28.125Gbaud(can be extended to 56Gbaud later)
Sensitivity	100mVpp differential
Max Input	950mVpp differential
Clocking Mode	Built-in clock recovery
Pattern Synchronization	Automatic
Connector	50ohm Nominal, 2.4mm SMK Female

Target Applications

Multi-lane serial data channels signal integrity characteristic;

50G/100G/200G/400G transceivers or Active Optical Cable (AOC), Direct Attach Cable (DAC);

Design Validation Test (DVT) of Telecom / Datacom, Components, Modules and Systems;

High-Speed SerDes Testing & Characterization;

Installation and Maintenance Test of Network Equipment;

Testing of optical transceiver modules，transponders, linecards, and subsystems;

Testing of opto-electronic components and devices (TOSA, ROSA, lasers, etc…);

Testing of Gb/s ICs, PCBs, electronic modules, subsystems, and systems;

Serial bus and high-speed backplane design;

Installation testing and troubleshooting in optical transport networks;

Key specifications and features

PAM4/NRZ @ 26.5625Gbaud

*Tested by 86100D+N1045A with Precision Time Base

Stelight Instrument is involved to be a Global Leader on high speed optical communication testing instrument and solution. We provide test & measurement solutions to enable optical component and OEM/ODM/JDM and other system integrators to reach new levels of quality and performance. Stelight Instrument was founded to address the growing need for affordable and functional equipment. Since that time, the company has expanded to create a path to address not only present, but also future requirements. Product specifications and descriptions in this document subject to change without notice.

For the latest version of this document, please visit our website at www.stelight.com.