[duane]

From MDL-BDC24_GSG.pdf.

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Use CAN cables to daisy-chain the network between Jaguar modules. Standard off-the-shelf modular RJ11/12/14 cables can be used. Cables must be “straight-pinned,” which means Pin 1 > 1, Pin 2 > 2, and so on. This is also referred to as a reverse-cable because the tabs on the connectors are on the opposite sides of the cable. The CAN cable needs only 4 conductors, but it is acceptable to use a 6-conductor cable and plugs. A suitable 6-ft off-the-shelf 6P4C cable is Digikey Stock No. A2662R-07-ND.
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While this guide uses the term off-the-shelf, this is not the description of a standard telco modular cable. Standard telco modular cables might be termed "reverse-pinned" and "straight-cable" that is the modular connectors face the same direction, instead of the way that they are shown in figure A-3 of the document.

Sure, you can buy these cables through digi-key. But off-the-shelf means I can walk into any store and buy a telco cable and have it work. It doesn't seem like that is the case.

I would love to be corrected on this point.