#### Card pools

This page contains the list of prepaid cards pools, with the interface to add or modify them. Card pools can not be removed. Page contains the following interface elements:

- button opens the card generation window (see Generating cards).

- button opens the card pool properties window (see Editing card pools).

- button removes overdue cards from the selected pool(s).

- button opens the cards search window, where the cards may be searched by an arbitrary combination of conditions on card ID, pool ID, tariff ID, PIN code, card balance, currency, and the ativation date.

##### Generating cards

Card generation window contains the following fields:

- ID is the pool ID (if points at the existing pool, the cards are added to it; otherwise, a new pool is created).
- Cards count is the number of cards to be generated.
- Balance is the monetary value of one card.
- Currency is the currency in which the card value is specified.
- PIN code length is the number of digits in the PIN codes to be generated.
- Random numbers switches on generation of random ID numbers for the cards; if not set, the numbers are issued sequentially.
- Unique PIN requres that the generated PIN codes are unique.
- Use before is the optional date to activate the card strictly before.
- Days is the optional term of expiration of the payment made when the card gets activated. If not set, the payment is not expiring.

- Tariff ID is the optional tariff attached to the card users on registration.

The created cards may be neither edited nor removed.

| If the tariff for the card users contains some services with periodic component, on user’s registration those get attached to the system accounting period, which is since 1/1/1970 till 1/19/2038. Therefore only the services with no or negligible periodic payment are suitable to include in such tariff plans.

##### Editing card pools

Card pool details window lists the cards in the pool together with their PIN codes, status info, and activation dates. The window contains the following interface elements:

- Add button opens the Generating cards window to add a new lot of cards to the pool.
- Refresh button updates the list of cards.
- Export button exports card data for this pool to an XML file.

- Block button blocks selected cards.
- Unblock button unblocks selected cards.

Below is the list of owners. These are the system users having the right to register users based on the cards from this pool. The option of having different owners for various pools may be relevant when the system contains several web interfaces run by different system users. If the list is not set, any system user has the right to register users.

The list may be altered by the following buttons:

- Add owner add a new owner to the list;
- Delete deletes the selected owner from the list.