Data Acquisition (DAQ) and Control from Microstar Laboratories

Isolated Inputs, 4-20 mA Current Loops : MSXB 081

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Monitor 4-20 mA current loops, with channel-to-channel isolation

click to view MSXB081 photo


DAP 5216a

DAP 5200a

DAP 5016a

DAP 5000a

DAP 4000a


Configuration Software Manual

Configuration Software

The MSXB 081 Channel-to-Channel Isolated 4-20 mA Input Signal Interface (SI) Module provides isolated analog inputs for DAP systems and lets you acquire data from a number of 4-20 mA current loops for real-time processing or later analysis. Each module is calibrated for current inputs.

Each MSXB 081 provides

  • eight differential inputs
  • simultaneous sampling
  • channel-to-channel isolation

Use these SI modules to eliminate ground currents – a potential source of noise in your measurement and control signals – and eliminate timing skew.

The eight onboard converters are synchronized to within a few nanoseconds of each other, and each one converts a signal to a 16-bit data stream at up to 250k samples/second for a total throughput of two million samples per second.

All inputs are differential, and each channel is isolated from all the others and from any other system component. Each module offers high signal density and enables high channel counts.

Up to eight of these analog input SI modules can be connected to a single DAP board for a total of 64 simultaneously sampled current inputs. SI modules connected to multiple DAP boards can be synchronized for more inputs or higher throughput. Contact Microstar Laboratories for more information.

MSXB 081-01-E3K is installed in an Industrial Enclosure and uses a DB-37 connector. Stand-Alone and Single-Board Enclosure models also are available.

Industrial Enclosure compatible models

  • MSXB 081-01-E3K: DB-37 panel
  • Other panel options are available.

Stand-Alone and Single-Board-Enclosure models

Channel-to-Channel and Channel-to-PC Isolation – MSXB081

current input isolation diagram