Signal Conditioning Boards MSXB 064 and MSXB 065
Technical Note TN-252 Version 1.0
The MSXB 064 and MSXB 065 expansion boards provide signal conditioning and sample-and-hold amplifiers for 8 channels of differential inputs. In addition, the MSXB 065 also provides anti-aliasing filtering with a low-pass filter for each channel. Refer to the MSXB 064/065 Manual for more information on the signal conditioning boards.
Installation
The backplane models connect directly to the analog backplane of an industrial enclosure via the 68-pin connector J1. The MSXB 064 or MSXB 065 board installs into any available slot on the analog backplane. When installing the expansion board, push the board firmly into the slot and make sure the board is securely connected to the backplane.
Warning: Never connect or disconnect any expansion board from the analog backplane of the Data Acquisition Processor while power is applied to any of them.
Warning: The MSXB 065 board is only compatible with the filter modules MSFM001.
| Header | Description | Default Settings |
|---|---|---|
| J1 | 68-pin connector to the DAP |
N/A |
| J2 | Enables sample-and-hold amplifiers |
With shunt installed; remove shunt to disable |
| J3 | Determines whether the board is externally powered |
Traces intact |
| J4 | 3-pin Molex connector for external power |
N/A |
| J5 | Determines the input address range |
All shunts installed for range D0 - D7 |
| J7 | DB37 connector for analog inputs and outputs |
N/A |
| J8 | Connects analog outputs between J1 and J7 |
All shunts installed |
| J10 | Determines gain setting and enables input addressing |
All shunts installed for unity gain and addressing enabled |
| J11 | Selects channels in a pin group |
Shunt on pins 1-2 for even-number channels |
| J12 | Internal use |
N/A |
| J13 | Internal use - for programming EEPROM |
N/A |
| J15 | Input clock and trigger |
N/A |
| J16 | Output clock and trigger |
N/A |
| J18 | Internal use |
N/A |
| J19 | Connects to filter module for MSXB 065 |
N/A |
| J20 | Connects to filter module for MSXB 065 |
N/A |
| J21 | Lower 4 differential signals |
N/A |
| J22 | Higher 4 differential signals |
N/A |
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