What does "You must have at least SGD 2,000 NLV to open or increase an uncovered option position" mean?

Clients who maintain either a cash or margin type account must maintain net liquidating equity of at least USD 2,000 (or equivalent in other currencies) in order to establish or increase an existing uncovered options position.

In order to submit the order you will need to deposit additional funds to the account…

Clients who maintain either a cash or margin type account must maintain net liquidating equity of at least EUR 2,000 (or equivalent in other currencies) in order to establish or increase an existing uncovered options position.

In order to submit the order you will need to deposit additional funds to the account…

Clients who maintain either a cash or margin type account must maintain net liquidating equity of at least AUD 2,000 (or equivalent in other currencies) in order to establish or increase an existing uncovered options position.

In order to submit the order you will need to deposit additional funds to the account…

Clients who maintain an account with IB India must maintain net liquidating equity of at least USD 2000 (equivalent in INR) in order to establish or increase an existing uncovered options position.

You can see the Equity with Loan Value and Net Liquidation Values of your account…