Retrieves all resource schema elements and values of a DSP Card based on a requested ID.
If no ID is specified in the GET, a listing of all DSP Cards will be returned along with their associated IDs. These identifiers can be used to collect resource schema element values via the GET dspcard id method.
Querying this resource without any filter results in obtaining inventory information which often increases CPU utilization by about 5% and should be avoided in a production system, specially with heavy traffic.
If this resource is queried from a production system, it is recommended to pass the URI parameter 'filter=runtime'.