Cable Chain Stitch is done in a similar manner to chain stitch but each loop in the chain is separated from the next by a small cable. The Cable Chain Stitch is used as a decorative stitch for straight or curved outlines in hand embroidery.
Bring the needle up at 'a'. Loop the thread around the needle from above to below, insert at 'b' and come up at 'c', before pulling the needle through place the needle's point over the thread and then pull through to create the loop.
Continue working this pattern till the end. Anchor the thread when finished stitching just as any Chain Stitch.