| 摘要 |
<p>A crossbar switch is shown which utilizes a plurality of select units and a plurality of hold unit assemblies mounted on a frame. All of the armatures for the select units are located on one end of the crossbar switch frame, and a plurality of select-off-normal switches are positioned on the opposite end. Each hold unit is composed of a hold armature assembly, a plurality of fixed contacts, a plurality of movable contacts under the control of movable cards and a plurality of select fingers, which in conjunction with the hold armature, translate the selected cards to close the movable contacts which are under the control of the selected card. There is also provided a select finger holder having a plurality of mounting posts which frictionally engage the support member of the hold unit, said holder further including a plurality of mounting buttons for receiving and supporting the select fingers.</p> |
