Dividend cover is earnings per share / dividend per share. Therefore if earnings are very low and there is a target dividend cover then dividend can be very low. Dividend payout is the actual amount of the dividend.
Capital market securities are such things as bonds/debentures and are issued by companies to raise money. The seller is the company, and they are boring money so it is a liability for them. The buyers are owed money from the company and so it is an asset for them.