Abstract: A transformer includes a drum core and a coil set wound on the drum core. The coil set includes a conductive member and an insulating layer wrapping around the conductive member. A diameter of the conductive member is between 0.07 mm and 0.2 mm, and a ratio of an outer diameter of the insulating layer to the diameter of the conductive member is between 1.35 and 2.5.

Abstract: A network transformer module includes a first magnetic element and a second magnetic element. The first magnetic element includes a first iron core and a first coil winding. The first coil winding is composed of a first wire and a second wire, and is wrapped 7 to 14 turns around the first iron core. The second magnetic element includes a second iron core and a second coil winding. The second coil winding is composed of a third wire and a fourth wire, and is wrapped 2 to 5 turns around the second iron core.

Abstract: A network transformer module includes a first magnetic element and a second magnetic element. The first magnetic element includes a first iron core and a first coil winding. The first coil winding is composed of a first wire and a second wire, and is wrapped 7 to 14 turns around the first iron core. The second magnetic element includes a second iron core and a second coil winding. The second coil winding is composed of a third wire and a fourth wire, and is wrapped 2 to 5 turns around the second iron core.

Abstract: A composite connector comprises a housing, a position-limiting structure, a first type terminal, and a second type terminal. The housing is disposed on a system board, and a first oblique slot is disposed on one sidewall of the housing. The position-limiting structure is movably disposed in the housing, and the position-limiting structure and the sidewall of the housing have one of and the other of a first moving structure and the first oblique slot, respectively. The first type terminal and the second type terminal are disposed at different depths of the housing. Thereby, the space utilization of the system board is enhanced, the advantage of reducing the volume of the electronic product is achieved, and the switching operation can be more stable and less easy to fail when the connecting interfaces are switched.

Abstract: A communication module includes a housing member, an electronic module, and a slidable mechanism. The housing member includes at least one fastening and releasing region, which is disposed on an external surface thereof. The fastening and releasing region has a first slant. The electronic module is partially disposed within the housing member. The slidable mechanism includes at least one extension arm with a second slant. The extension arm is accommodated within the corresponding fastening and releasing region. The second slant is aligned with the first slant, and a slope of the second slant is larger than a slope of the first slant.

Abstract: An optical communication module includes a substrate, a lens carrier, and a ferrule. The substrate includes at least two transmitter/receiver chips. The transmitter/receiver chips include plural optoelectronic units with respective alignment marks. The lens carrier includes a frame and a lens array. The lens array includes plural lens units corresponding to respective optoelectronic units of the transmitter/receiver chips of the substrate. The ferrule is coupled with the lens carrier. The alignment marks of the plural optoelectronic units are passively aligned with corresponding lens units, so that the lens carrier and the substrate are precisely aligned with each other and combined together. After the lens carrier and the substrate are combined together, the ferrule and the lens carrier are combined together, so that a precise optical communication path is constructed.

Abstract: A communication module includes a housing member, an electronic module, and a slidable mechanism. The housing member includes at least one fastening and releasing region, which is disposed on an external surface thereof. The fastening and releasing region has a first slant. The electronic module is partially disposed within the housing member. The slidable mechanism includes at least one extension arm with a second slant. The extension arm is accommodated within the corresponding fastening and releasing region. The second slant is aligned with the first slant, and a slope of the second slant is larger than a slope of the first slant.

Abstract: An optical communication module includes a substrate, a lens carrier, and a ferrule. The substrate includes at least two transmitter/receiver chips. The transmitter/receiver chips include plural optoelectronic units with respective alignment marks. The lens carrier includes a frame and a lens array. The lens array includes plural lens units corresponding to respective optoelectronic units of the transmitter/receiver chips of the substrate. The ferrule is coupled with the lens carrier. The alignment marks of the plural optoelectronic units are passively aligned with corresponding lens units, so that the lens carrier and the substrate are precisely aligned with each other and combined together. After the lens carrier and the substrate are combined together, the ferrule and the lens carrier are combined together, so that a precise optical communication path is constructed.

Abstract: An optical network unit includes an optical transmitter, an optical detector and a signal measurement module. The optical transmitter transmits an optical signal to an optical line terminal of a passive optical network system. The optical detector is utilized for monitoring the emission of the optical signal and transforming the received optical signal into a current signal. Then, the current signal is transformed into a voltage signal. The signal measurement module is connected to the optical detector for filtering and sampling the voltage signal and generating a sampling signal. The average output power of the optical transmitter can be obtained by averaging the voltage values of the sampling signal. Once the up-transmission data packet of the optical network unit exceeds the time interval of the allocated time slot, and the voltage values of the sampling signal have several points over a threshold, the optical transmitter is turned off.

Abstract: Systems, apparatus and methods for implementing single-fiber optical ring networks based on double side band modulation.