Can I Use a DRd Interconnect Cable In an Un-bussed Rack Configuration?

Answer

The short answer is NO. This use case is not supported by ETC.

Here are a few reasons why this is not supported:

1. The product is not UL listed for that configuration
2. The cable has connectors assembled on it which makes it very difficult to route through conduit
3. There can be an imbalance when dimming unbussed racks from a single controller which can yield poor dimming performance