Monitoring arrangement for electronic file folder locator system

A monitoring arrangement associated with a hanging file folder for identifying information in an electronic file folder locator system having a communications bus, a hanging file folder having a pair of laterally extending support bars along a pair of upper edges of the file folder wherein each upper edge is formed with a channel for holding a respective support bar and said file folder is formed with a plurality of apertures into one of the upper edge channels at a plurality of spaced locations along its channel, the arrangement comprising:

• a pair of parallel, substantially horizontal, support rails spaced apart so that the opposite ends of the file folder support bars can each engage a respective one of the support rails to suspend the file folder from the support bars and between the support rails;
• a file folder label holder containing an addressable switch and a memory storing identifying information unique to the file folder, the label holder having a tab adapted to extend into a file folder upper edge aperture for mounting the label holder to said file folder;
• a first pair of conductive lines extending along at least one of said support rails and adapted for connection to the communications bus of the electronic file folder locator system;
• a second pair of conductive lines extending along the one support bar within its channel of the file folder having the plurality of apertures, the second pair of conductive lines being located on the one support bar for contact with respective ones of the first pair of conductive lines when the file folder is supported on the pair of support rails;
• and
• circuitry within the label holder coupled to the addressable switch and the memory, the circuitry extending onto a surface of the label holder tab and adapted for contact with the second pair of conductive lines when the tab is inserted into one of the apertures.