Single-piece PCB or Card-edge Connectors

receptacle (jack) and a connector plug (fig. 2-15). The receptacle can be located at the end of a cable or mounted stationary. The plug can be located at the end of pcb or cable. The actual connection (mating) of a connector consists of pcb card-edge, electrical pins (flat or round) and contacts, or soldered (wire to card-edge connector). Let’s examine the types of connectors. SINGLE-PIECE PCB OR CARD-EDGE CONNECTORS. —Single-piece pcb or card-edge connectors are used internally. They are the most widely used connectors for making connections from a pcb (plug) to a receptacle; cable, another pcb, or a larger item such as a backplane receptacle. Figure 2-16 shows a single-piece pcb or card-edge connector. Connection can also be made from the pcb edge to a wire (soldered). Terminations of conductor to receptacle include solder and solderless (wire wrap, crimping, pin removal and insertion, or Mass-Termination Insulation Displacement Connection (MTIDC) or Insulation Displacement connection (IDC). TWO-PIECE PLUG AND RECEPTACLE PCB CONNECTORS. —Two-piece plug and receptacle pcb connectors are used internally. Two-piece pcb connectors are basically the same as one-piece pcb connectors except the pcb is designed with a plug (male or female) on the card edge that plugs into a receptacle (male or female). Pins or contacts located on either receptacle or plug can be flat or round. See figure 2-17. No-piece connectors are preferred over one-piece because they provide more resistance to shock and vibration. Terminations of conductor to receptacle Figure 2-15.—A connector: a plug and a receptacle. 2-16 Figure 2-16.—Single-piece pcb or card-edge connector. include solder (2M or basic) or solderless (wire wrap, crimping, pin removal and insertion, or MTIDC or IDC [fig. 2-18]). RECTANGULAR MULTIPIN CON- NECTORS. —Rectangular plastic- or metal-shell receptacles and plugs can be used for internal and external connectors. They can be flat with a single row Figure 2-17.—Two-piece plug and receptacle pcb connector.