Modular IDC terminal

Information

  • Patent Grant
  • 6299475
  • Patent Number
    6,299,475
  • Date Filed
    Friday, September 15, 2000
    24 years ago
  • Date Issued
    Tuesday, October 9, 2001
    23 years ago
Abstract
A distribution terminal block for connecting individual drop wires to incoming telephone cable wires has a base that receives attachable modules. Each module has a pair of IDC clips. A plunger adapted for reciprocal movement within the module along a plunger axis presses the drop wires into engagement with the IDC clips. The module has a cavity filled with an electrically insulating gel. The plunger has an upper portion and a lower portion separated by a recess for receiving the drop wires. A spine connects the upper portion and the lower portion of the plunger. The lower portion has a smaller cross-sectional area than the upper portion and has an angled, sharp end for reducing disturbance to the insulating gel during movement of the plunger to insert, remove and reinsert the drop wires.
Description




FIELD OF THE INVENTION




This invention relates in general to electrical connectors and in particular to terminal blocks for connecting an incoming telephone cable to individual pairs of drop lines.




BACKGROUND OF THE INVENTION




Terminal blocks are commonly used in telephone distribution lines. For example, a telephone cable will lead from the telephone company system to a terminal block. The terminal block has a base with a number of connection stations, for example 10 to 15. Each station has a separate electrical connector that will connect one twisted-pair of wires in the incoming telephone cable to a pair of drop lines that leads to one of the telephones. The wires from the incoming telephone cable are pre-wired into the stations of the base. Each station has two holes for insertion of the two wires from one of the drop lines. Normally, the station will have an insulation displacement connector (referred to herein as “IDC”) terminal registering with each of the holes. An IDC terminal allows the operator to insert the end of the drop line into the hole provided in the station without stripping the insulation from the drop line. The IDC terminal includes a clip having a slit with two sharp edges that are biased toward one another. The wire is pressed through the slit toward the base, thereby making electrical contact without the need for stripping the insulation from the wire.




When installing distribution terminals, it is not uncommon for the telephone company cable to have more capacity than will be initially required by the telephone drop lines. For example, the incoming cable may have a capacity for 15 pairs of drop lines, but only eight will be used initially, although it is possible in the future that the rest will be utilized. The company installing the distribution terminal may install a terminal block that has 15 separate stations to match the full capacity of the telephone company cable even though only eight pairs of drop lines are being used initially. Later, when the other stations are going to be used, the additional drop lines can simply be inserted into the stations. However, a larger terminal block than initially needed is more expensive. On the other hand, if the company elects to install a smaller terminal block, it may find that it later has to replace the smaller terminal block with a larger one.




It is not uncommon for a need to exist to remove drop wires from a module and then reinsert the same or different drop wires. The module housings are filled with an insulating gel to prevent water and other undesirable environmental effects from entering the housing and possibly shorting out the electrical connection. The insulating gel is a viscous substance that does not fully harden with time. It is important on reinsertion that the insulating gel flows around the drop wires and continues to properly encapsulate the drop wires and the IDC clips.




SUMMARY OF THE INVENTION




In this invention, the distribution terminal block has a plurality of bases. Each of the bases has a platform and two lateral sides on opposite edges of the platform. Mating connectors are on each of the lateral sides of the bases for securing a number of the bases together, in side-by-side relation. The bases can thus be assembled to a desired number to match the number of twisted-pairs of wires from the incoming telephone cable.




Each of the bases has three electrically conductive penetrators extending through the platform. Two of the penetrators have downwardly extending terminal ends for connection to a twisted-pair of wires of the incoming telephone cable. The third penetrator is connected to a ground. A module may be secured to each of the bases over the platform. Each module has a pair of electrical contacts, preferably IDC clips. Each clip engages one of the penetrators when the module is secured to the base. Each of the modules has a pair of holes adjacent to the IDC clips for receiving ends of the drop wires. An actuator for each of the modules presses the drop wires into engagement with the IDC clips.




In the preferred embodiment, each of the actuators has a plunger for pushing the drop wires into engagement with the IDC clips. The plunger moves relative to the housing of the module while the module remains stationary on the base. Rotating a screw in one direction causes the plunger to move toward the base. Rotating the screw in the opposite direction causes the plunger to move away from the base.




The plunger has an upper portion and a lower portion separated by a recess and connected by a spine. The upper portion has a larger cross-sectional area than the lower portion. The upper portion has lateral edges that engage guides in the housing to prevent rotation of the plunger. The power portion has a lesser width and beveled corners on its lower lateral edges. The spine joins to the rearward side of the lower portion and has a tapered inner edge that is oblique to the axis of the plunger, thereby defining a sharp point.




It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate one or several embodiments of the invention, and, together with the description, serve to explain the principles of the invention.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view showing a distribution terminal block constructed in accordance with the invention.





FIG. 2

is a top view of the terminal block of

FIG. 1

, but showing only two of the modules.





FIG. 3

is a sectional view of the terminal block of

FIG. 2

, taken along the line


3





3


of FIG.


2


.





FIG. 4

is a bottom view of the terminal block of FIG.


2


.





FIG. 5

is a bottom perspective view of one of the bases of the terminal block of FIG.


1


.





FIG. 6

is an exploded perspective view of one of the modules and one of the bases of the terminal block of FIG.


1


.





FIG. 7

is a top view one of the modules and one of the bases of the terminal block of FIG.


1


.





FIG. 8

is a sectional view of the module and base of

FIG. 7

, taken along the line


8





8


of FIG.


7


.





FIG. 9

is a sectional view of the module and base of

FIG. 7

, taken along the line


9





9


of FIG.


7


.





FIG. 10

is a sectional view of the module and base of

FIG. 7

, taken along the line


10





10


of FIG.


7


.





FIG. 11

is a front view of one of the modules and one of the bases of the terminal block of FIG.


1


.





FIG. 12

is a sectional view of the module and base of

FIG. 11

, taken along the line


12





12


of

FIG. 11

, and shown in a closed position.





FIG. 13

is the same sectional view as

FIG. 12

, but showing the actuator in an open position.





FIG. 14

is a sectional view of the module and base of

FIG. 11

, taken along the line


14





14


of

FIG. 11

, and showing the actuator in a closed position.





FIG. 15

is the same sectional view as

FIG. 14

, but showing the actuator in an open position.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




Referring to

FIG. 1

, distribution terminal block


11


has a plurality of bases


13


. In the drawing, six bases


13


are shown, but the number of bases


13


can be varied depending on the number of twisted-pairs of wires from an incoming telephone cable


31


. Referring also to

FIG. 4

, each base


13


has lateral walls


15


,


17


and end walls


19


. Each base


13


is generally rectangular, with lateral walls


15


,


17


being perpendicular to end walls


19


. A flat platform


21


forms a top of each base


13


, platform


21


being perpendicular to lateral walls


15


,


17


and end walls


19


. A lip


22


is provided on base


13


around the entire perimeter of platform


21


for sealing the base


13


from water and other undesirable environmental effects, as will be described.




Referring also to

FIG. 5

, two connector lugs


23


are formed on lateral wall


15


and extend laterally outward therefrom. Two connector slots


25


are formed in lateral wall


17


opposite lugs


23


. Each slot


25


extends from the lower edge of wall


17


and converges in the direction of platform


21


. A separate rectangular cavity


27


is located on the inner side of lateral wall


17


in registry with each slot


25


. Slot


25


and cavity


27


are adapted to receive one of the lugs


23


from an adjacent base


13


. Bases


13


are connected together by sliding lugs


23


into engagement with the slots


25


of the adjacent base


13


, so that the friction between lugs


23


and cavities


27


retains the bases


13


together.




Referring again to

FIG. 1

, a wire feed


29


is located on one of the ends of terminal block


11


for feeding the incoming telephone cable


31


, which in the embodiment shown, contains a predetermined number of twisted-pairs of wires. Closure members (not shown) may be inserted into slots


25


on the exposed unused lateral side


17


of the outermost base


13


. The twisted-pairs of wires of distribution cable


31


extend within the hollow bases


13


, passing through recesses


33


(

FIGS. 5

,


6


) formed in each of the lateral walls


15


,


17


. The twisted-pairs of wires contained in distribution cable


31


are separately pre-wired and connected to each of the bases


13


.




Each incoming wire will be connected to a terminal


35


of a penetrator


37


that extends downwardly through a hole


39


formed in each platform


21


, as best shown in FIG.


6


. Each hole


39


extends through a boss


40


that is raised above platform


21


. A separate penetrator


37


is provided for each of the wires of the twisted-pair. In particular, one of the penetrators


37


is provided for the wire known as the tip wire, and the other penetrator


37


is provided for the ring wire. Also, a third penetrator


41


is provided for a ground wire. Each penetrator


37


,


41


has an upward facing socket. Ground penetrator


41


extends downwardly through a hole


43


formed in platform


21


of base


13


. Hole


43


extends through a boss


44


that is raised above platform


21


. Bosses


40


and


44


extend to about the same height as lip


22


and serve to prevent water and other undesirable environmental effects that may enter the terminal block


11


from entering holes


39


and


43


.




A module


45


attaches to each of the bases


13


. Each module


45


includes a housing


47


that has a lower end with a rectangular lower perimeter for tightly and closely engaging base


13


around lip


22


of platform


21


. Latch members


49


on housing


47


engage shoulders


51


(

FIG. 6

) provided on end walls


19


of each base


13


. Each latch


49


is flexible and resilient and depends from a lower edge of housing


47


, one from a forward end wall


53


and the other from a rearward lower end wall


55


. Forward end wall


53


has a greater axial dimension than rearward lower end wall


55


in the embodiment shown. A rearward upper end wall


54


is parallel with rearward lower end wall


55


, but forward of it and connected by a step portion


52


. The words “forward,” “rearward,” “lower,” “upper,” “inner,” and “outer” are used only for convenience and not in a limiting manner. Module housing


47


further has two lateral side walls


56


that are perpendicular to forward end wall


53


and to rearward upper and lower end walls


54


, and


55


.




A pair of electrically conductive IDC clips


57


are located within each housing


47


. Each clip


57


has a generally J-shaped configuration, having a short forward leg


59


, a longer rearward leg


61


and a flat base


63


that joins legs


59


,


61


. Base


63


will be parallel to platform


21


once module


45


is installed. Forward leg


59


has an axial slit


65


that defines a pair of sharp edges biased toward each other. A slightly concave entry edge


67


is located at the upper end of slit


65


. When an insulated wire is placed on entry edge


67


and pressed downward toward platform


21


, the sharp edges of slit


65


will cut the insulation and create electrical continuity with IDC clip


57


. A prong


69


depends from base


63


and locates in one of the sockets of one of the penetrators


37


. Electrical continuity between one of the twisted-pairs of wires from incoming telephone cable


31


(

FIG. 1

) is thus established through terminal


35


, penetrator


37


and IDC clip


57


.




Rearward legs


61


of IDC clips


57


are separated by a central divider partition


70


(

FIGS. 8

,


14


) within housing


47


. Divider partition


70


is parallel with lateral side walls


56


of module


45


and extends forward from rearward upper end wall


54


to a partition


73


(

FIGS. 12

,


13


). Partition


73


is spaced forward of upper rearward end wall


54


. Partition


73


extends laterally from one lateral wall


56


to the other, parallel with rearward upper end wall


54


. The thickness of partition


73


is shown by the dotted lines in

FIGS. 12 and 13

. The sectional planes of

FIGS. 12 and 13

are taken through ribs that protrude rearwardly from partition


73


.




Referring still to

FIGS. 12 and 13

, rearward leg


61


of IDC clip


57


has a tab


71


that is bent in a forward direction for retaining IDC clip


57


in housing


47


. Tab


71


engages a notch located on one of the ribs of partition


73


. Referring still to

FIGS. 12 and 13

, each IDC clip


57


has an upper end


75


that extends above partition


73


and is exposed to an access port


77


extending downwardly from the top of housing


47


. Access port


77


enables one to test continuity of the electrical connection made by module


45


without removing module


45


from base


13


.




As best shown in

FIGS. 12 and 13

, a pair of guide ribs


79


are formed on the interior of each lateral side wall


56


forward of partition


73


. Guide ribs


79


protrude from the interiors of lateral side walls


56


a short distance. A plunger


81


is located forward of guide ribs


79


in a plunger cavity between guide ribs


79


and forward wall


53


. Plunger


81


moves reciprocally along a vertical plunger axis relative to housing


47


. Plunger


81


is shown in an upper open position in

FIG. 13 and a

lower closed position in FIG.


12


. Plunger


81


is prevented from rotation relative to housing


47


by guide ribs


79


and further by rib


84


(

FIG. 10

) located forward of guide rib


79


(

FIGS. 12

,


13


) on each side wall


56


. As shown in

FIG. 6

, plunger


81


has guide ribs


82


that engage the slot located between guide ribs


79


(

FIGS. 12

,


13


) and rib


84


(FIG.


10


). Guide ribs


82


are located on both sides of plunger


81


.




Plunger


81


has an upper portion


99


and a lower portion


101


. Upper and lower portions


99


,


101


are separated from each other by a recess


102


that extends from one lateral edge to the other of plunger


81


. A spine


103


connects the upper and lower portions


99


,


101


. Recess


102


is defined by a downward facing shoulder


105


on the lower edge of upper portion


99


and an opposed upward facing shoulder


107


on the upper edge of lower portion


101


. Shoulders


105


,


107


are parallel to each other in the embodiment shown. Upper shoulder


105


has a notch


106


(

FIGS. 12

,


14


) that extends across the full width of upper portion


99


on the forward side. As the drop wires are inserted through the forward end wall


53


, they contact shoulder


105


, which presses the drop wires into the leg


59


of IDC clips


57


.




The notch


106


provides a space that allows an insulating gel to fully surround the drop wires between the forward end wall


53


and the upper portion


99


, thereby effectively sealing the entrance to the terminal block


11


from water and other undesirable environmental effects. If the upper portion


99


were square rather than having an undercut, such as notch


106


, it is possible that there would be no insulating gel between the wire and the upper portion


99


. Thus, water running along the drop wire would be permitted to enter the module


45


because of a lack of insulating gel on the top of the drop wire. Although notch


106


is shown as a rectangular recess, it could also be an angular chamfer, or any other shape (e.g., curvilinear) that allows a space between the drop wire and the upper portion


99


of the plunger


81


.




Spine


103


is integrally formed with upper and lower portions


99


,


101


, and joins lower portion


101


on a rearward side. Spine


103


extends downward to the lower edge of lower portion


101


. Spine


103


is a generally flat member located in a plane perpendicular to housing forward end wall


53


. Spine


103


has a lower edge


113


that is formed on a diagonal line oblique to the plunger


81


, as shown in

FIGS. 14 and 15

. This defines an angled, sharp point on the lower edge of plunger


81


to reduce disturbance to the insulating gel as plunger


81


moves inward.




Lower portion


101


has a forward side with a generally flat portion that is parallel with the forward end wall


53


of housing


47


. A rib


109


protrudes from this flat portion. Rib


109


is in the same plane with spine


103


and joins the sharp tip of spine


103


. Furthermore, the forward side of lower portion


101


has beveled corners


111


at the intersection of the forward side with its two lateral sides.




Lower portion


101


has a cross-sectional area in a plane perpendicular to the plunger axis that is significantly smaller than the cross-sectional area of upper portion


99


. The width of lower portion


101


also is preferably less than the width of upper portion


99


, thereby creating gaps between its lateral sides and housing side walls


56


, as shown in FIG.


9


. Spine


103


has a considerably smaller cross-sectional area than lower portion


101


. These features cooperate with the oblique lower edge


113


of spine


103


and the beveled comers


111


to reduce disturbance to the insulating gel as plunger


81


is moving inward. Recess


102


of plunger


81


registers with a pair of elongated holes


87


formed in forward end wall


53


. Each hole


87


has an axial length that is more than twice its width. Each hole


87


will register with recess


102


both in the upper and the lower positions as can be seen in

FIGS. 11-13

.




Preferably, a rotary member moves plunger


81


between the upper (open) and the lower (closed) positions. The rotary member is preferably a screw


89


having a helical thread with multiple starts. Screw


89


has a head


91


located on the upper end of housing


47


and engages mating threads


92


(

FIG. 14

) formed in a receptacle in plunger


81


. Rotation of less than one turn will stroke plunger


81


filly from the open to the closed position. Moving plunger


81


to the lower position causes its lower tip to enter a recess


115


(

FIG. 12

) in platform


21


(FIG.


1


).




Module


45


may optionally be provided with a protector


93


, which will be mounted in a rearward cavity


94


separate and rearward from the cavity containing IDC clips


57


and plunger


81


. The cavity containing IDC clips


57


and plunger


81


is filled with the insulating gel, but cavity


94


does not contain the insulating gel. Protector


93


is a commercially available electrical device for protecting equipment against high or excessive voltage, such as caused by lightning strikes. Protector


93


has two contacts (not shown) spaced apart by an insulation gap, which is bridged if the voltage applied is high enough. Protector


93


has a ground leg


95


and tip and ring legs


97


. Ground leg


95


joins ground penetrator


41


(FIG.


6


). Tip and ring legs


97


are electrically connected with IDC clips


57


, preferably by soldering. Penetrators


37


are connected to tip and ring wires from the provider. Excessive voltage applied to either of the penetrators


37


will discharge through protector


93


to ground through penetrator


41


. A snap-in floor


96


(

FIG. 6

) fits in the base of step portion


52


. The snap-in floor


96


has a pair of upright supports


98


that provide support for protector


93


.




In operation, terminal block


11


will be assembled by connecting a selected number of bases


13


to each other with lugs


23


locating within slots


25


(

FIGS. 5

,


6


). Preferably, enough bases


13


will be assembled to match the capacity of the incoming telephone company distribution cable


31


. The twisted-pairs of wires within incoming cable


31


will be pre-wired to each of the bases


13


by connecting each of the wires to the various penetrators


37


and by connecting each penetrator


41


to a common ground wire that is part of the incoming cable


31


. Then, a number of modules


45


, each preferably filled with insulating gel as described above, will be snapped onto the bases


13


using latches


49


. When modules


45


are placed on bases


13


, the prongs


69


of each of the IDC clips


57


will engage penetrators


37


. If a protector


93


is used, ground leg


95


will enter the socket of penetrator


41


and protector


93


will locate on hole


43


. Some of the bases


13


, even though pre-wired with twisted-pairs of wires from incoming cable


31


, may be left unused without any module


45


until needed.




To install individual drop lines, the tip and ring wires are inserted into holes


87


and into recess


102


while plunger


81


is in the open position shown in FIG.


13


. This places each wire directly above the entry edge


67


of each slit


65


(

FIG. 6

) of each IDC clip


57


. Screw


89


is then rotated, which strokes plunger


81


toward base


13


. The downward facing shoulder


105


of plunger


81


presses the drop wires downward through the slits


65


, cutting the insulation and establishing electrical continuity between the drop wires and legs


59


of IDC clips


57


. During the inward movement, upper portion


99


pushes insulating gel contained in housing


47


inward, thereby assuring that the gel surrounds IDC clips


57


. The lower portion


101


will not push any significant amount of the insulating gel because of its thin profile and angled, sharp end, reducing a tendency to push the insulating gel away from the base of IDC clips


57


.




Continuity to the twisted-pairs of wires of incoming cable


31


(

FIG. 1

) is established through penetrators


37


. The continuity may be checked by using the rearward legs


61


of IDC clips


57


and access ports


77


provided in housing


47


of module


45


. Additional modules


45


may be added at any time. To remove the wires, screw


89


is rotated in the opposite direction. Upward facing shoulder


107


of lower portion


101


presses the drop wires upward out of slits


65


(

FIG. 6

) of IDC clips


57


. Very little, if any of the insulating gel is pushed out apertures


87


because of the thin profile of lower portion


101


of plunger


81


. Accordingly, reinsertion of the drop wires can be made without re-introducing the insulating gel into housing


47


.




The invention has significant advantages. The configuration of the plunger enhances immersion of the IDC clips in insulating gel and reduces disturbance of the insulating gel both on inward movement and on reinsertion. The upper portion of the plunger pushes the insulating gel inward, while the lower portion of the plunger slices through the insulating gel with minimal disturbance.




While the invention has been shown in only one of its forms, it should be apparent to one skilled in the art that it is not so limited, but is susceptible to various changes without departing from the scope of the invention.



Claims
  • 1. A module for connecting drop wires to wires of an incoming telephone cable, the module attached to a base having electrical contacts electrically connected to the wires of the incoming telephone cable, the module comprising:a housing attached to the base, the housing having a cavity therein filled with an insulating gel and a pair of holes for receiving the drop wires in the cavity; a pair of electrically conductive connectors located within the cavity of the housing, each of the connectors comprising an extension for engaging one of the electrical contacts when the module is attached to the base, each of the connectors having an axial slit with opposed sharp edges biased toward each other; and a plunger located within the cavity of the housing, the plunger defining a plunger axis and being movable along the plunger axis between an open position for receiving the drop wires in the cavity and a closed position for electrically connecting the drop wires to the connectors, the plunger having an upper portion and a lower portion connected by a spine and separated by a recess for receiving the drop wires between the upper portion and the lower portion in the open position.
  • 2. The module according to claim 1wherein the upper portion comprises a lower edge and a downward facing shoulder adjacent the lower edge for pressing the drop wires into electrical continuity with the connectors while the plunger moves from the open position to the closed position; and wherein the lower portion comprises an upward facing shoulder opposite the downward facing shoulder of the upper portion for pressing the drop wires out of electrical continuity with the connectors while the plunger moves from the closed position to the open position; and wherein the recess is defined by the downward facing shoulder of the upper portion and the upward facing shoulder of the lower portion.
  • 3. The module according to claim 2 wherein the shoulder of the upper portion of the plunger has a notch formed therein that provides a space for allowing the insulating gel to fully surround the drop wires and thereby effectively seal the pair of holes in the housing from water and undesirable environmental effects.
  • 4. The module according to claim 3wherein the housing comprises a pair of lateral side walls, a forward end wall perpendicular to the lateral side walls and a rearward end wall parallel to the forward end wall and perpendicular to the lateral side walls; and wherein the notch of the shoulder of the upper portion of the plunger is located between the forward end wall of the housing and the spine adjacent the forward end wall.
  • 5. The module according to claim 1 wherein the lower portion of the plunger has a pair of lateral sides and a maximum width measured between the pair of lateral sides and the upper portion of the plunger has a pair of lateral sides and a minimum width measured between the pair of lateral sides and wherein the maximum width of the lower portion is less than the minimum width of the upper portion to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 6. The module according to claim 1wherein the lower portion of the plunger has a cross-sectional area and the upper portion of the plunger has a cross-sectional area that is greater than the cross-sectional area of the lower portion of the plunger to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position; and wherein the spine of the plunger has a cross-sectional area that is substantially less than the cross-sectional area of the lower portion of the plunger to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 7. The module according to claim 1 wherein the lower portion of the plunger comprises beveled comers to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 8. The module according to claim 1 wherein the spine of the plunger is connected to a rearward side of the lower portion of the plunger and comprises a lower edge extending at an oblique angle relative to the plunger axis and thereby defines an angled, sharp point on the lower edge to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 9. The module according to claim 1wherein the housing has opposed lateral interior walls and comprises a pair of axially extending guide ribs formed thereon adjacent the cavity of the housing; and wherein the upper portion of the plunger engages the guide ribs of the housing to prevent rotation of the plunger relative to the housing; and wherein the lower portion of the plunger has lateral sides that are spaced apart from the guide ribs of the housing to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 10. The module according to claim 1 wherein the base comprises a platform having a perimeter and a lip around the entire perimeter of the platform for tightly and closely engaging the housing to prevent water and undesirable environmental effects from entering the base and the housing.
  • 11. The module according to claim 1 wherein the base comprises a platform and a plurality of bosses are provided on the base to prevent water and undesirable environmental effects from entering the base.
  • 12. A module for connecting drop wires to wires of an incoming telephone cable, the module attached to a base having electrical contacts electrically connected to the wires of the incoming telephone cable, the module comprising:a housing attached to the base, the housing having a cavity therein filled with an insulating gel and a pair of holes for receiving the drop wires in the cavity; a pair of electrically conductive IDC clips located within the cavity of the housing, each of the IDC clips comprising a penetrator for engaging one of the electrical contacts when the module is attached to the base, each of the IDC clips having an axial slit with opposed sharp edges biased toward each other; and a plunger located within the cavity of the housing, the plunger defining a plunger axis and being movable along the plunger axis between an open position for receiving the drop wires in the cavity and a closed position for electrically connecting the drop wires to the connectors, the plunger having an upper portion and a lower portion connected by a spine and separated by a recess for receiving the drop wires between the upper portion and the lower portion in the open position.
  • 13. The module according to claim 12wherein the upper portion comprises a lower edge and a downward facing shoulder adjacent the lower edge for pressing the drop wires into electrical continuity with the IDC clips while the plunger moves from the open position to the closed position; and wherein the lower portion comprises an upward facing shoulder opposite the downward facing shoulder of the upper portion for pressing the drop wires out of electrical continuity with the IDC clips while the plunger movies from the closed position to the open position; and wherein the recess is defined by the downward facing shoulder of the upper portion and the upward facing shoulder of the lower portion.
  • 14. The module according to claim 13 wherein the shoulder of the upper portion of the plunger has a notch formed therein that provides a space for allowing an insulating gel to fully surround the drop wires and thereby effectively seal the pair of holes in the housing from water and undesirable environmental effects.
  • 15. The module according to claim 14wherein the housing comprises a pair of lateral side walls, a forward end wall perpendicular to the lateral side walls and a rearward end wall parallel to the forward end wall and perpendicular to the lateral side walls; and wherein the notch of the shoulder of the upper portion of the plunger is located between the forward end wall of the housing and the spine adjacent the forward end wall.
  • 16. The module according to claim 12 wherein the lower portion of the plunger has a pair of lateral sides and a maximum width measured between the pair of lateral sides and the upper portion of the plunger has a pair of lateral sides and a minimum width measured between the pair of lateral sides and wherein the maximum width of the lower portion is less than the minimum width of the upper portion to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 17. The module according to claim 12wherein the lower portion of the plunger has a cross-sectional area and the upper portion of the plunger has a cross-sectional area that is greater than the cross-sectional area of the lower portion of the plunger to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position; and wherein the spine of the plunger has a cross-sectional area that is substantially less than the cross-sectional area of the lower portion of the plunger to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 18. The module according to claim 12 wherein the lower portion of the plunger comprises beveled corners to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 19. The module according to claim 12 wherein the spine of the plunger is connected to a rearward side of the lower portion of the plunger and comprises a lower edge extending at an oblique angle relative to the plunger axis and thereby defines an angled, sharp point on the lower edge to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 20. The module according to claim 12wherein the housing has opposed lateral interior walls and comprises a pair of axially extending guide ribs formed thereon adjacent the cavity of the housing; and p1 wherein the upper portion of the plunger engages the guide ribs of the housing to prevent rotation of the plunger relative to the housing; and wherein the lower portion of the plunger has lateral sides that are spaced apart from the guide ribs of the housing to reduce disturbance of the insulating gel while the plunger moves between the open position and the closed position.
  • 21. The module according to claim 12 wherein the base comprises a platform having a perimeter and a lip around the entire perimeter of the platform for tightly and closely engaging the housing to prevent water and undesirable environmental effects from entering the base and the housing.
  • 22. The module according to claim 12 wherein the base comprises a platform and a plurality of bosses are provided on the base to prevent water and undesirable environmental effects from entering the base.
CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of U.S. patent application Ser. No. 09/089,585 filed Jun. 3, 1998.

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Continuation in Parts (1)
Number Date Country
Parent 09/089585 Jun 1998 US
Child 09/663454 US