Cable connector type transceiver module
A cable connector type transceiver module is disclosed. Pads for wire soldering are disposed near a card edge connecting section of the tip of a printed circuit board on the printed circuit board. Pairs of wires of a cable for balanced transmission are extended in the direction of the card edge connecting section over a control IC package. Signal wires at the tips of insulation covered signal wires of the pairs of wires are soldered to the pads for wire soldering at the position near the card edge connecting section rather than near the control IC package.
1. A cable connector type transceiver module, comprising:
transceiver module connectors disposed one at each end of a cable for balanced transmission which cable provides pairs of wires in which a pair of insulation covered signal wires is bundled, and the transceiver module connector has a transceiver module main body assembled in a housing,
the transceiver module main body includes
a printed circuit board which provides a card edge connecting section at the tip, a plurality of pads for wire soldering near the card edge connecting section, and wiring patterns extending between the card edge connecting section and the pads for wire soldering; and
a control IC package mounted on the printed circuit board; wherein
the pairs of wires of the cable for balanced transmission are extended in the card edge connecting section direction over the control IC package, and
signal wires which the tips of the insulation covered signal wires are uncovered are soldered to the pads for wire soldering.
2. The cable connector type transceiver module as claimed in claim 1 , wherein:
the pads for wire soldering are arrayed parallel to the card edge connecting section, and
the tips of the signal wires soldered to the pads for wire-soldering are arrayed parallel to the card edge connecting section.
3. The cable connector type transceiver module as claimed in claim 1 , wherein:
the printed circuit board provides the wiring patterns from the card edge connecting section to the pads for wire soldering on the surface of an insulation layer formed on a ground pattern inside the printed circuit board, and
the insulation layer has a predetermined thickness for impedance matching.
4. The cable connector type transceiver module as claimed in claim 1 , wherein:
AC coupling capacitors are mounted on the wiring patterns in the middle from the card edge connecting section to the pads for wire soldering on the printed circuit board.
5. The cable connector type transceiver module as claimed in claim 1 , wherein:
the printed circuit board provides the pads for wire soldering and the wiring patterns on the upper surface and other wiring patterns from the card edge connecting section to the control IC package on the lower surface.
6. The cable connector type transceiver module as claimed in claim 1 , wherein:
the printed circuit board provides an opening where the control IC package is to be mounted and the control IC package is mounted by being engaged in the opening.
7. The cable connector type transceiver module as claimed in claim 1 , wherein:
a pair of wires arranging member is attached to the printed circuit board so as to cover the mounted control IC package, and
the pairs of wires are extended to the pads for wire soldering over the control IC package by being arranged by the pair of wires arranging member.
8. The cable connector type transceiver module as claimed in claim 1 , wherein:
the housing includes a housing main body and an upper cover,
the housing main body includes a bottom plate section, a side plate section at each side, a bridge section which spans between the side plate sections at one end, and a housing main body cable clamping section at the other end,
the upper cover includes an inserting section at one end and an upper cover cable clamping section at the other end, and
the inserting section is engaged under the bridge section, the cable for balanced transmission is clamped by being pushed by the upper cover cable clamping section and the housing main body cable clamping section, and the upper cover cable clamping section is secured to the housing main body cable clamping section by pressing pins into holes formed in the upper cover cable clamping section and the housing main body cable clamping section from the sides.
9. The cable connector type transceiver module as claimed in claim 8 , wherein:
the housing main body cable clamping section includes an upward curved section and the upper cover cable clamping section includes a depressed section at the position corresponding to the upward curved section, and
the cable for balanced transmission is forced to conform to the upward curved section and the depressed section and is clamped so as not to be pulled out from the housing by friction between the housing and a curved section which is composed of the upward curved section and the depressed section.