The AM16/32 Multiplexer combines the functions of our AM416 and AM32 Multiplexers. A toggle switch allows you to configure the multiplexer to switch 16 sets of 4 lines at a time (4 x 16 mode) or 32 sets of 2 lines at a time (2 x 32 mode). In either case, a maximum of 64 lines can be input to the multiplexer. Signals from the datalogger’s control ports trigger advancement from set to set, sequentially routing signals from each connected sensor through the multiplexer’s common (COM) terminals.
The AM16/32 is smaller and more robust than its predecessors. In 2 x 32 applications, it uses one less differential input channel than would be required if an AM416 were used for the same purpose. Multiple strain relief eyelets are built into the multiplexer; a cover is also provided to shield the multiplexer terminal strips and connected wires from inadvertent jostling and dust. As with its predecessors, the AM16/32 requires an environment free of moisture and condensing humidity; our AM ENC environmental enclosure is recommended.
Multiplexers do more than increase system channel capacity; they can also significantly reduce the cost of sensor cabling, especially in applications where long leads are required. In cases where sensors are clustered at some distance from the datalogger, the multiplexer is typically located in the middle of the sensor spread. The MUXSIGNAL-L and MUXPOWER-L cables are used for the long cable run, while expensive sensor leads are kept short.
