In this method, a unit (24) is tested by a test instrument (22) with the aid of a master (MC), an intermediate (30) and a slave (SL) computer. The latter connects to the test instrument (22) for sensing its measurements. The method includes the step of dispatching one of a plurality of instruction signals to the intermediate computer (30) from the master computer (MC). Another step is issuing to the slave computer (SL), when it is not halted, a signal to halt from the intermediate computer (30) ...

An interface (10) between a first (MC, 30) and second (SC) computer employs a multiplexer (46) and a coupler (48, 50). The first (MC, 30) and second (SC) computers have a first (LA/B, LEX0-15) and second (CX1-21, CA1-15) plurality of information lines, respectively. These computers also each have a group of control lines (36, 42). The multiplexer (46) is connected to the first and second plurality of information lines (LA/B, LEX0-15, CX1-21, CA1-15). The multiplexer (46) is operable to separatel...

A serial to parallel bus converter (11) enables a slave computer (13), having a parallel bus input (19) to be controlled by a master computer (15) via a serial bus connection (14). The converter (11) interprets commands from the master computer (15) to provide appropriate control commands for the slave computer (13). Instructions received from the master computer (15) are provided to the slave computer (13) when complete commands from the master computer (15) are received by the converter (11). ...

A link (10) exchanges data between a master (MC) and slave (SC) computer. Each computer has control lines (26A, 42) and incompatible information lines (26B, 26C, CA1-15, CX1-21). The master computer (MC) includes a master interface (28) connected to the information and control lines (26) of the master computer (MC). The master interface (28) has separate intercommunication lines (LA/B) and intermediate (34) lines. This master interface (28) is able to provide an intermediate signal on its interm...