Both ends of the cctv cable through the BNC connector to connect the T-BNC head, through the T-BNC head to connect the card, with coaxial cable network need to make BNC connector at both ends of the coaxial cable. BNC connectors are crimp type, assembled and welded, the production of crimp type BNC connector requires special card pliers and electric knife. Press-fit BNC connector production steps are as follows:
First, Wire stripping coaxial cable from the outside to the protection of rubber, metal shielded cable (grounding shielded wire), milky white transparent insulating layer and the core line (signal line), the core by one or several copper wire, metal shield Wire is woven by metal wire mesh, wire between the inner and outer layers of transparent insulation filled with opalescent, inner and outer wire coaxial cable to maintain coaxial known as the coaxial cable. Stripping With a knife to coaxial cable outer protective rubber peeling 1.5cm, be careful not to cut metal shielded wire, and then the core line of milky white transparent insulating layer stripped 0.6cm, so that core wire exposed.
Second,BNC connector purchased from the BNC connector body, shield metal sleeve, core pin from the three components, the core pin is used to connect the coaxial cable core; stripping good line after the core line Insert the end of the core pin hole, with a special clamp on the front part of the force clamp clamp, so that the core line pressed in the hole. You can use the soldering iron welding core and the core pin, welding pin inserted into the end of the pin hole in a little rosin powder or neutral flux after welding, welding, be careful not to solder the core pin exposed on the outer surface, Will lead to core pin pinned. Note: If you do not have special card pliers available electrical clamp instead, but be careful not to make too much deformation of the core pin, the second is to tighten the core wire to prevent bad contact.
Third, Assemble the BNC connector After connecting the core, insert the shield metal sleeve into the coaxial cable, and then insert the core pin forward from the BNC connector body end hole so that the core pin protrudes from the front end Out, and finally the metal sleeve forward, so that the outer sleeve of the metal shielded cable in the BNC connector body at the end of the cylinder;
Fourth,Press the line to keep the sleeve in good contact with the metal shielded wire, with the card clamp on the hexagonal bayonet force clamp, the sleeve into a hexagonal shape. Repeat the above method in the coaxial cable to produce the other end of the BNC connector is completed. Before using the best use of multi-meter to check, open circuit and short circuit will lead to communication, there may be damage to the network card or hub.
Note: The production of assembled BNC connectors need to use a small screwdriver and electrician, in accordance with the above methods after stripping, the core wire into the wire fixing hole, and then a small screwdriver to fix the core, the outer metal shielded wire together, The clamp is fixed in the shielded wire fixing sleeve, and finally the tail metal is screwed onto the BNC connector body. Production of welding BNC connectors need to use electric iron, stripping in accordance with the foregoing methods, just use the electric iron to the core wire and shielded wire welding BNC head of the welding point, put on the lance material and soft lance material lance tail cover Can be.