(1) On request, the person obliged is to provide security. The duty to provide security does not apply if there is no reason to assume that the payment of maintenance is endangered or if the person obliged would be inequitably burdened by the provision of security. As a rule, the amount for which security is to be provided is not to exceed the periodical payments for one year, except to the extent that, in the particular circumstances of the cases, a higher amount of security appears appropriate.
(2) The nature of the security to be provided is determined according to the circumstances; the restriction of section 232 does not apply.