Product Selection Guides

The integrated network port (Mag-Jack) integrates the network transformer, common mode inductor, Bob Smith termination and indicator light inside the RJ45. Its pins include differential pins, center taps, NC, GND, LED and other different functions, and the connection methods are different. Most of the three types of problems, such as network port failure, indicator light not lighting, and EMC failure, are not damaged components, but incorrect pin wiring. VOOHU Electronics (VOOHU) explains these three types of common wiring errors in four parts: phenomenon, root cause, correct approach, and sel

In professional audio, broadcast communications, and industrial instrumentation systems, ground loop hum, common‑mode interference, and abnormal voltage coupling are three common signal‑chain problems. In mild cases, they raise the noise floor and degrade

This solution is VOOHU Electronics (VOOHU)'s standard isolated SPI solution. The company has focused on the field of communication electronic components for over 9 years, adhering to the business philosophy and service concept of "Choose VOOHU – Tru

Isolated SPI standard circuit design reference This solution is the VOOHU Electronics (VOOHU) isolated SPI standard solution. The company has focused on the field of communication electronic components for more than 9 years. The company adheres to the business strategy and service concept of choosing VOOHU·True Reliability and provides a full set of technical solution support. Technical background and core concepts Isolated SPI communication SPI (Serial Peripheral Interface) adopts a master-slave synchronous, full-duplex architecture, using chip select CS, clock SCLK and MOSI/MISO four-wire co

In Ethernet hardware circuit design, the LAN Transformer is a core component that ensures signal transmission and provides electrical isolation. The isolation transformer and common‑mode choke (CMC), as the two key supporting components of the Ethernet tr

In industrial communication systems, the selection of physical layer interfaces directly affects the signal integrity, reliability, and system cost of bus nodes. From multi‑node interconnection in PLC control cabinets, to lightning protection in outdoor s

In today’s rapidly advancing world of high-speed data communication and optical interconnect technology, SFP cages have become indispensable physical interfaces in network equipment. From Gigabit to 800G, from data centers to 5G front‑haul, the form

RS-485 (EIA/TIA-485 Standard)is a balanced differential bus standard for serial communication, published by the Electronic Industries Alliance in 1983. The RS-485 bus features long-distance transmission, multi-node networking, and strong common-mode rejec

This solution is VOOHU Electronics (VOOHU)'s standard CAN communication solution. The company has focused on the field of communication electronic components for over 9 years, adhering to the business philosophy and service concept of "Choose VOOHU &ndash

CAN Communication – Controller Area Network The Controller Area Network (CAN) was proposed by Bosch in the 1980s. The CAN bus employs multi-master contention-based communication, non-destructive bitwise arbitration, and differential signal transmiss

In data communication systems, the selection of physical layer components directly affects port signal integrity, reliability, and cost. From 10G/25G ports in core switches, to PoE powering and lightning protection in industrial outdoor equipment, and to

SPE Single Pair Ethernet Standard Circuit Design Reference This solution is VOOHU Electronics’ standard solution for SPE Single Pair Ethernet. The company has focused on the field of communication electronic components for over 8 years, adhering to