Hardwired Cable and Data Link Cable

Doesn't it say on the System Architecture Drawing?

Data Link cable can be but doesn't necessarily has to be hard wired into the device.

Data Link cable is the option to transmit data, it links your device up to other devices that might need your data.

^{Can you wire me 100 Dollars. I will never losely wire them back since I will have a bad, disconnected not hard wired in datalink!}

I've always though of hard wired cables as those without connectors.

Data link cable is self explanatory, I'd say.

These two terms (hardwired and data link) are not standard terms. They can be interpreted to mean different things in different scenarios by different people. I would say that a hardwired cable resides between sensor and a single receiving electronics package with little to no signal conditioning devices attached. In contrast a data link cable carries information that has been translated from a sensor to a standard data protocol to be routed to multiple devices.