There are usually two types of margin modes in common cryptocurrency contract trading products today: cross margin and isolated margin.
Cross Margin
In cross margin mode, the assets in the account will be used as margin for all positions. If forced liquidation is triggered, all positions in cross margin mode will be liquidated together and the assets in the account will be credited with losses.
Isolated Margin
In isolated margin mode, the positions of each trading pair in the account are independent of each other and the margin of the positions is segregated from each other. If one of the positions is forced liquidated, it will not affect the other positions or the assets in the account.