PCBA Consumer Electronics Fiber Optic Tester SMT Printed Circuit Board Assembly

PCBA  Images

About TECircuit

Found: TECircuit has been operating since 2004.

Location: An electronics manufacturing service(EMS) provider located in Shenzhen China.

Item: Customizable EMS PCB, offers a full range of one-stop shop services.

Service: Printed Circuit Board (PCB)and Printed Circuit Board Assembly(PCBA), Flexible Printed Circuit Board(FPC), Components Sourcing, Box-Building, Testing.

Quality Assurance: UL,ISO 9001, ISO 14001, ISO 13485, ITAF 16949 andcomplied with ROHS and REACH.

Factory Pictures:
Company's own plant : 50,000 sqm; Employees : 930+; Monthly production capacity : 100,000 m2

PCBA  Applications

• Network Installation and Maintenance: The PCBA drives the core functions for technicians to certify fiber optic cable installations, measuring critical parameters like total end-to-end optical power loss to ensure links meet industry standards before system commissioning.

• Fault Location and Troubleshooting: It powers Optical Time-Domain Reflectometer (OTDR) functionality, analyzing backscattered light to precisely locate breaks, severe bends, or faulty connectors along a fiber span, dramatically reducing repair time.

• Passive Optical Network (PON) and Telecommunications: Specialized PCBAs enable testing in live PON networks, allowing technicians to measure power levels on specific wavelengths without disrupting service, which is essential for maintaining FTTH (Fiber to the Home) infrastructure.

• Data Center and Enterprise Network Quality Assurance: Used to verify and document the performance of patch cords, trunk cables, and installed fiber within data centers, ensuring high-speed backbone connections have sufficient signal margin for reliable operation.

• Fiber Characterization and Laboratory Research: High-precision PCBA designs are used in R&D and manufacturing environments to characterize the detailed properties of fiber, such as chromatic dispersion and polarization mode dispersion, for advanced system design.

• Educational and Training Tool: Serves as a practical platform for students and trainees to learn fiber optic theory, practice hands-on splicing, and understand how to interpret loss budgets and OTDR trace data.

PCBA Features 

1. Laser Diode Driver & High-Sensitivity Photodetector: The PCBA incorporates precise laser driver circuits to emit stable, calibrated light pulses or signals at specific wavelengths (e.g., 850nm, 1310nm, 1550nm). It pairs this with a high-sensitivity photodetector and transimpedance amplifier to convert faint optical signals into accurate electrical measurements.

2. High-Precision Timing & Signal Processing Circuitry: For OTDR and loss test units, the board features ultra-stable timing circuits (using TCXOs or GPSDOs) to measure the nanosecond-scale return time of light. A high-speed ADC and FPGA or DSP perform real-time signal averaging and processing to extract usable data from noisy backscatter signals.

3. Data Processing & Analysis Core: A powerful application processor or microcontroller runs the device's operating system, manages the user interface, executes test standards (e.g., from IEC/TIA), stores results, and generates clear pass/fail reports and graphical trace data.

4. Multi-Interface Connectivity & Calibration Storage: The PCBA includes USB and often Wi-Fi/Bluetooth modules for data transfer and remote control. It features non-volatile memory to store crucial calibration coefficients for each laser and detector, ensuring measurement accuracy over time and temperature changes.

5. Advanced Power Management System: Employs a sophisticated PMIC to manage multiple internal voltage rails efficiently. It supports long battery life for field use by powering down high-current components (like lasers and displays) when not in active use and facilitates stable operation from various sources (battery, AC adapter, Power over Ethernet).

6. Ruggedized Design & Environmental Compensation: The board is often conformally coated and designed with wide-temperature-range components. It includes environmental sensors (for temperature) to auto-compensate measurements, as fiber attenuation and laser output can vary with ambient conditions.

FAQ

​PCB & PCBA  Description​

PCB Assembly OEM Service

Electronic Components Material Purchasing

Bare PCB Fabrication

Cable, Wire-harness Assembly, Sheet Metal, Electrical Cabinet Assembly Service

PCB Assembly Service: SMT, BGA, DIP

PCBA test: AOI, In-Circuit Test (ICT), Functioal Test (FCT)

Conformal Coating Service

Prototyping and Mass Production

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PCBA ODM service

PCB Layout, PCBA Design According To Your Idea

PCBA Copy/Clone

Digital Circuit Design / Analog Circuit Design/ lRF Design /Embedded Software Design

Firmware and Microcode Programming Windows Application (GUI) Programming/Windows Device Driver (WDM) Programming

Embedded User Interface Design / lSystem Hardware Design

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