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Mesa Electronics 7i76 Step/Direction + I/O Daughter Card (view source)
Revision as of 10:59, 20 October 2022
, 10:59, 20 October 2022added idle voltage levels
* [http://www.mesanet.com/pdf/parallel/7i76man.pdf#page=14 Pages 14-15] (8-9 in the PDF) show the TB5 field I/O pinout
* [http://www.mesanet.com/pdf/parallel/7i76man.pdf#page=14 Pages 14-15] (8-9 in the PDF) show the TB5 field I/O pinout
* [http://www.mesanet.com/pdf/parallel/7i76man.pdf#page=16 Page 16] (10 in the PDF) shows the TB1 field power pinout
* [http://www.mesanet.com/pdf/parallel/7i76man.pdf#page=16 Page 16] (10 in the PDF) shows the TB1 field power pinout
Give that all of the FPGA pins are being driven to +5V (high), the 7i76 has the following output levels with respect to digital ground:
{| class="wikitable"
! TBx Pin
! Voltage
|-
| STEP/DIRx+
| +5V (high)
|-
| STEP/DIRx-
| 0V (low)
|-
| RS-422 TX+
| 0V (low)
|-
| RS-422 TX-
| +5V (high)
|-
| RS-422 RX+
| +2.5V (invalid)
|-
| RS-422 RX-
| +2.5V (invalid)
|}
== Dimensions ==
== Dimensions ==
[http://store.mesanet.com/index.php?route=product/product&product_id=119 7i76 | Mesa Web Store]
[http://store.mesanet.com/index.php?route=product/product&product_id=119 7i76 | Mesa Web Store]
[http://store.mesanet.com/index.php?route=product/product&product_id=322 7i76 | Mesa Web Store]
[http://store.mesanet.com/index.php?route=product/product&product_id=322 7i76D | Mesa Web Store]