Excalibur Systems

The M8KDiscrete module provides a complete solution for developing and testing discrete voltage-level interfaces. The M8KDiscrete contains control I/O registers that are memory-mapped and may be accessed in real time. The module supports ten programmable I/O discretes that can record or control the external discretes that are connected to it. In addition, the module can record changes in the input discrete with an associated time tag via a built-in FIFO. Output discretes are open collector, capable of handling up to 32V with a maximum sink current of 100 mA each. Ordering Information:

The user can set each discrete:

• Either as input or output.

• Either to TTL (0 – 5V) or Avionics (0 – 32V) voltage levels on inputs and

• Either enable or disable external debounce on inputs

There is a 4092 Word FIFO (a string of 1023 discrete entries) containing the data and time tags.

The M8KDiscrete module is supplied with C drivers, including source code and may be used with Exalt, Excalibur’s Analysis and Laboratory Tools, a Windows monitoring application.

Ordering Information:

Part Number Description

Ix   M48Discrete


Discrete 10 programmable channel  interface module.


 I0- 10 Ch Discrete, SW selectable for In/Out and TTL/Avionics 0-32 Volt thresholds (not for UNET2/MACCII products)

I1- 10ch Input

I3- 6ch Output 4ch Input

I2- 4ch Output 6ch Input

I4- 10ch Output

"-E" added to the end of the part number specifies extended temperature (-40° to +85°C) option.
"-001" added to the end of the part number specifies conformal coating option.

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