This product is no longer available and has been replaced by: AM16/32B.
AM16/32A 16-channel or 32-channel Relay Multiplexer
Services Available
Repair No
Calibration No
Free Support No


On 16 January 2008, the AM16/32A was replaced with the AM16/32B. A new clocking mode was added to the AM16/32B that allows a relay address to be used to go directly to a specific channel; the AM16/32A sequentially advanced through all of the channels.



Power 9.6 to 16 Vdc, under load, unregulated
Quiescent Current Drain < 210 µA
Active Current Drain 6 mA (typical)
Maximum Actuation Time for Relay 20 ms
Maximum Switching Current 500 mA
Switching currents greater than 30 mA (occasional 50 mA acceptable) degrade the suitability of that channel for switching low-voltage signals.


Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

Data Loggers

Product Compatible Note
21X (retired)
CR10 (retired)
CR1000 (retired)
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired)
CR295X (retired)
CR3000 (retired)
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR800 (retired)
CR850 (retired)
CR9000 (retired) Although the CR9000 is compatible, the AM16/32A does not support their fastest communication rates and therefore is not practical for most applications.
CR9000X (retired) Although the CR9000X is compatible, the AM16/32A does not support its fastest communication rates and therefore is not practical for most applications.

Additional Compatibility Information

Short Cut

Short Cut software (available at no charge from our website) supports simple programming and generates wiring diagrams for AM16/32A applications; early versions of Short Cut did not support multiplexers.

Data Logger Considerations

A series of data logger instructions control the AM16/32A operation (measurement instructions that are repetitive are generally contained within a programming loop; in the CR800-series, CR1000, CR3000, and CR5000, this functionality is available in the SubScan instruction).


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