What is the edge connector?

The edge connector is a double -sided electrical connector that allows the connection of two boards with terminal edges. It is very common in computer hardware that the motherboard connects to a number of subsidiaries or cards. The edge connector can also connect to the ribbon cable and then to another edge connector that connects to another circuit board. The conductive edges of the boards require good contact with the edge of the edge connector, so the edges are usually plated with high -performance metals with good conductivity and good resistance to oxidation caused by moisture in the air. Conventional metal coatings are tin, silver and gold. For example, a common motherboard for a personal computer on a desktop uses several marginal connectors to connect peripherals such as hard drives, displays, and network interface cards. As a normal practice, the power supply power supply connectors that are separate from data and control connectors are connected. In computer systems it is common to have a data bus and OVLady bus. These common connections can be made available to the backplane so that all boards can have the edges of the connector that come into contact with these edges connectors. The result is several nodes on separate plates of the circuit, which have common connections as needed.

The allowed currents are usually low due to limited contact pressure in the edge connectors. If more current is to be allowed, several positions or pins of the terminal may be assigned. For example, at the edges of the Backplane power connector, a common connection can be reduced with up to six or more termamil positions.

In addition, the common connection can protrude in advance to make contacts before any other connector edges are connected. This function prevents damage to the electrostatic discharge that occurs when a free plate with a neutral electrostatic charge is first connected to the backplane. This is why land wrists are used in handling plates. The ground straps can be used to ground the human handler or to neutralize the charge in the new board.

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edge connectors used for computer cards are designed to connect to the earlier integrated drive electronics connector or later interconnection of peripheral components. Both connectors include power lines, address and data bus and other control lines. Replacing different types of computer interface cards, for removing and testing problems, is very easy due to edge connectors.