BNC interface

The BNC interface refers to the coaxial cable interface. The BNC interface is used for the connection of 75 Euro coaxial cables. It provides two channels: receiver (RX) and hair (TX). It is used for non -balance signals.

Fiber interface

The fiber interface is a physical interface used to connect the fiber cable. There are usually several types of SC, ST, LC, FC. For the 10Base-F connection, the connector is usually a ST type, and the FC is connected to the fiber fiber frame. FC is the abbreviation of FerruleConnector. The external enhancement method is a metal sleeve, and the fastening method is a screw buckle. ST interfaces are usually used for 10base-f, SC interfaces are usually used for 100Base-FX and GBIC, and LC is usually used for SFP.

RJ-45 interface

The RJ-45 interface is the most commonly used interface of Ethernet. The RJ-45 is a commonly used name, which refers to the standardization of IEC (60) 603-7, and uses 8 positions defined by international connection standards (8 stitches). The modular jack or plug.

RS-232 interface

The RS-232-C interface (also known as EIA RS-232-C) is currently the most commonly used serial communication interface. It was formulated by the US Electronics Industry Association (EIA) in conjunction with the Bell System, Moderate Dormitory Manufacturer and Computer Terminal Manufacturers in 1970. Its full name is "Data terminal device (DTE) and data communication equipment (DCE) serial binary data exchange interface technical standards". This standard stipulates that a 25 -foot DB25 connector is used to specify the signal content of each pin of each pin of the connector, and the level of various signals is also specified.

RJ-11 interface

The RJ-11 interface is what we usually call the telephone line interface. RJ-11 is a universal name for connecting accessories developed by Western Electric. Its shape is defined as a 6 -pin connection device. Originally named wexw, X here means "activity", contacts or threading. For example, we6W has all 6 contacts, numbers from 1 to 6, and the WE4W interface only uses 4 stitches. The two outer two contacts (1 and 6) are not used. We2W only uses the middle two stitches (ie, for the phone line interface).