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Microprobes BSI-2A Biphasic Stimulus Isolator
'The Model BSI-2A Biphasic Stimulus Isolator has been optimized for applications requiring precise control of rectangular waveform stimuli. It is designed for use with external timing circuits, which are biphasic single channel (e. g. MLS BPG-1P, Digital Controllers or other monophasic pulse signal sources such as computers). The external timing input(s) gates each of the two optically isolated, independently battery powered, constant current sources. Because they have completely independent isolators, range controls, and output circuits, the “A” and “B” outputs can be used as independent monophasic stimuli which are completely isolated from each other as well as from the control input. Each output has an inversion switch and an extra binding post to facilitate installation of coupling capacitors or current monitoring resistors. The two sets of output binding posts are strategically placed so that the addition of two jumpers (provided) converts the unit instantly to biphasic or pulse pair operation.'