Taiwan Precision Technology Co., Ltd

PRECISE｜BERT｜BERT3T1T65

1.6T Three-Temp. High Speed Bit Error Rate Tester

The PSS BERT3T1T65 is a high-speed bit error rate analyzer designed for multi-channel PAM4 and NRZ applications, with a per-channel data rate of up to 106.25 Gbd. It is primarily used in optical communication scenarios such as the development and testing of 1.6T / 800G modules.

This system features an integrated optical interface design with a built-in TEC + liquid-cooling temperature control system, supporting module DDM temperature testing from 0 to 70 °C. The plug-and-play design enables rapid deployment in R&D and production testing workflows.
The transmitter supports pre-emphasis adjustment for PAM4 eye-shape optimization, while the receiver provides equalization (EQ) and forward error correction (FEC) functions, along with comprehensive data and graphical analysis capabilities.

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Application

  • High-speed 1.6T / 800G module transceiver testing under tri-temperature conditions.
  • Supports testing of AOC, AEC, ACC, DAC and other cable types.

Features

  • Bit Error Rate Analyzer
    • Supports PAM4 data rates of 53.125 GBaud / 106.25 GBaud.
    • Multiple pattern types: PRBS7/9/11/13/15/23/31/58, PRBS7~58Q, SSPRQ, user-defined patterns, etc.
    • The transmitter supports pre-emphasis adjustment.
    • The receiver supports equalization, SNR testing, and eye diagram analysis.
    • KP4 FEC functionality with symbol error distribution analysis.
    • Supports internal/external IIC switching and open optical module debugging; users can operate module registers via the GUI interface.
  • Temperature Control
    • High-efficiency temperature control with dual-sided TEC design for improved thermal regulation.
    • TEC includes full-protection mechanisms, real-time monitoring of hot/cold side temperature differences, and intelligent algorithms to extend system lifetime.
    • Innovative case temperature monitoring enables real-time feedback of module shell temperature.
    • Ports feature independent water-cooling loops, ensuring stable operation without mutual interference.
  • Main Unit
    • Supports dual-port simultaneous testing, with flexible switching between OSFP / OSFP-RHS / QSFP-DD packages for diverse testing scenarios.
    • Modular design allows quick installation and maintenance of DUT fixtures, improving usability.
    • High reliability with dedicated protection for airflow, liquid cooling, and optical modules, ensuring long-term stable operation.
    • SRC remote interactive control provides an intuitive user experience via testing software and GUI.
    • Supports multi-LAN connections for multi-interface applications.
    • High space utilization design effectively reduces testing costs.

Technical Specifications

Bit Error Rate Analyzer

ItemSpec.
Data Rate (Gbaud)53.125 / 106.25
Supports frequency offset testing and arbitrary rate point configuration
Pattern (Prbs)[PPG Side] PRBS7/9/11/13/15/23/31/58、PRBS7~58Q、
SSPRQ、User pattern

[ED Side] PRBS7/9/11/13/15/16/23/31, PRBS7~31Q
Equalization FunctionSupports adaptive equalization
FEC FunctionSupports KP4 FEC
SNR FunctionSupports SNR testing
Eye Diagram AnalysisSupports eye diagram simulation and analysis
Module IICSupports module I²C testing
Electrical TX Differential AmplitudeDifferential (mV)＜800
Minimum RX SensitivityDifferential (mV)＜100

Temperature Control

ParameterSpecification
Temperature Control MethodTEC + Liquid Cooling
Temperature Control Range-20~+85℃
Heating/Cooling Efficiency≤2 min (Typical case temperature, @28 W OSFP, 70→0 °C)
Subject to actual test conditions, depending on DUT power consumption and heat source distribution
Temperature Control Stability±1℃
Temperature Control Accuracy0.1℃
Fixture ReplacementSupports quick plug-and-play replacement for single-port fixtures

MCB Fixture

ParameterSpecification
Case Temperature MonitoringSupports real-time module case temperature monitoring (NTC)
Voltage OffsetVoltage Offset (3~3.8V)
MCB ReplacementSupports independent replacement of the MCB board
Fixture ReplacementSupports quick plug-and-play replacement for single-port fixtures
Due to integrated water-cooling loops, hot-swapping is not supported—replacement must be performed with the system powered off

Main Unit

ParameterSpecification
Module Testing Capacity1 / 2 Ports
Module Package TypesOSFP / OSFP-RHS / QSFP-DD
InterfaceRS232，LAN
Host / Chiller Maximum Power2kw
The host power may vary depending on the number of configured ports.。
Chiller power may vary based on the number of ports; the system is supplied with a chiller.。

Typical Data

* Eye Diagram Simulation and Analysis
* FEC Symbol Errors
* Cooling Curve (OSFP @28 W)
* Heating Curve (OSFP @28 W)
* 1.6T Optical Module Bit Error Data (FEC)
* 1.6T Optical Module Bit Error Data

Optional Items

ModelEquipped
PSS BERT3T1T65-#1#A1-Port BERT
PSS BERT3T1T65-#2#A2-Port BERT

DUT Fixtures

ModelEquipped
PSS BERT3T1T65_MFIX_OSFP-#1OSFP Fixture: includes PCBA, TEC components, and structural parts
PSS BERT3T1T65_MFIX_OSFP-R-#1OSFP-RHS Fixture: includes PCBA, TEC components, and structural parts
PSS BERT3T1T65_MFIX_QSFP-DD-#1QSFP-DD Fixture: includes PCBA, TEC components, and structural parts
* This system does not include fixtures; DUT fixtures must be purchased separately.
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