Interconnecting two TB-2634's to build 8X32 Matrix with two NI 2529 &&

[HughAW]

I'm building a '8X32' switch matrix using  two TB-2634's & two NI-2529's

To minimize cabling interconnects I would like to:

1) configure the TB-2634's for "Dual 4X16" configuration. As noted in "How to Connect Signals to the NI 2529 " I'll need to remove the 0-ohm resistors that short the Bank0 & Bank1 rows.

2) Jumper the Row ribbon cable headers between the two TB-2634's; exiting to the application board with one 2X32 ribbon cable for 8 Row Connections

3) Jumper the two (internal ) Column ribbon cable headers (chan 0-15 to chan 16-31) in each  TB-2634, exiting each TB-2634 with a 2X32 ribbon cable to the application board i.e.. Column signals 0-15 in one ribbon cable & 16-31 in the other.

Because this may be a non standard interconnect method;
A) I would like to know if the NI Switch Executive Development System software will recognize & controll this configuration?

B) Does removing 0-ohm resistors in the TB-2634 invalidate its warranty?

Thanks,

Hugh

[HeatherBaker]

Hi HughAW,

I would recommend using row expansion to obtain the 8x32 matrix.  Removing the zero ohm resistors does not invalidate the warranty.  Hopefully this helps!

[Now_With_Underscores]

To elaborate on Heather's post, I'd recommend using the 2-wire 4x32 matrix topology on both 2529s.  Then we can connect the columns of the TB-2634 together to arrive at a 2-wire 8x32 matrix using two ribbon cables; c0-c15 on module A to c0-c15 on module B, and c16-c31 on module A to c16-c31 on module B.  Bam! 8x32 2-wire matrix!  No manual wiring is required.  We do not need to remove the resistors.