Printed wiring board handle having viewable option connectors
AssigneeBell Telephone Laboratories, Incorporated
InventorsErnest Gerard DeNigris, Ralph John Palette
Life of this patent
Estimating the term…
Abstract
A handle is disclosed for use in conjunction with a key telephone printed wiring board. The handle is constructed having windows along the front surface and electrical contacts grouped behind each window. A multicontact connector is optionally connected to various of the contacts within each group and the group of contacts to which the connector is attached at any given time is easily ascertained by viewing through the associated window. The window, in addition to providing a means for determining the selected options without resorting to the removal of the board from the network, also serves to protect the individual connectors from inadvertent removal.
Claims11
A handle for attachment along a side edge of a printed wiring circuit board, said handle comprising:
- outer and inner surfaces, separated by a central portion, said central portion including upper and lower surfaces,
- a plurality of electrical contacts disposed within said central portion, and extending through said lower surface for attachment to said side edge of said circuit board, each of said electrical contacts arranged for mating relationship with one contact of a multicontact connector, and said electrical contacts arranged into groups,
- a plurality of windows in said outer surface of said handle, each said group uniquely associated with one of said groups of contacts,
- said contacts being arranged into subgroups within each said group in a manner allowing a single multicontact connector to become connected optionally and exclusively to any selected one of said subgroups, one contact within each group being common to at least two subgroups, each said window being positioned with respect to said associated group of contacts in a manner which allows a visual determination to be made through said window as to which one of said subgroups of contacts of said associated group of contacts a multiconnector is connected.
A key telephone line circuit board having edge contacts for connecting said circuit board into an electrical network and having a handle mounted opposite said edge contacts, said line circuit having several optional circuit states, said handle comprising
- a plurality of electrical contacts disposed along said handle, each said contact having one end thereof connected to said circuit board and the other end thereof arranged for mating relationship with the bridged contacts of a multicontact removable connector, said contacts arranged into groups and into subgroups within each such group, one contact within each group being common to at least two subgroups, said multicontact connector being selectively connectable to only one of said subgroup of contacts at any one time to define one of said optional circuit states,
- a plurality of windows defined in a front surface of said handle, said front surface being visible when said circuit board is inserted into said electrical network, each said window uniquely associated with one of said groups of contacts and arranged with respect to said associated contact group in a manner which allows a visual determination to be made through said window as to which one of said subgroups of contacts of said associated group of contacts said multicontact connector is connected.
Dependencies are inferred from the claim text.