標準號：BS EN 1546-4-1999
中文標準名稱：識別卡系統.部門間電子錢包.數據目標
英文標準名稱：Identification card systems - Inter-sector electronic purse - Data objects
標準類型：L64
發布日期：1999/12/15 12:00:00
實施日期：1999/12/15 12:00:00
中國標準分類號：L64
國際標準分類號：35.240.15
適用范圍：This part of EN 1546 defines the Tag values required and describes the Dictionary mechanisms necessary for their utilization in order to achieve interoperability between IEP Systems where Data Elements have different lengths and/or the ordering of Data Elements in commands and responses is different from that defined in EN 1546-3. The mechanisms are based on TLV (Tag-length-value) definitions of each Data Element. Tags and mechanisms are also defined for handling Discretionary Data elements additional to those defined in EN 1546-3. The TLV mechanisms used are in accordance with ASN.1. Examples of utilization of Dictionaries are described in an informative Annex.