TRANSPORTABLE TELEPHONE EXCHANGE APPARATUS

摘要

A transportable telephone exchange apparatus that can be moved to a district to deal with a temporary shortage of subscriber lines in that district. In the apparatus, a row of stationary bays and a row of movable bays are arranged in a back-to-back relationship with each other to form a bay block, and there are at least two bay blocks in which the movable bays in the different rows face each other while the stationary bays face the side walls of the casing of the apparatus so as to define at least two maintenance passages of sufficient width within the apparatus.