DMX Output connector on new Ion X

I have a new Ion Xe20 light board -- very happy with it so far, although we are still learning.  Last month, we had to add a second universe of DMX.  The DMX connector Number 2 on the back of the board refuses to seat the DMX cable with a satisfying click.  So it's a fragile point of failure.  Is the DMX cable connector available from ETC, and is it a job that I could probably tackle?

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