电能表预付费系统-标准传输规范(STS)（22）

6.5.2.3 DecoderKey classification

6.5.2.3.1 Classification of decoder keys

STS DecoderKeys are classified according to the KT values given in Table 32 and inherit their type from that of the VendingKey, from which they are derived.

        STS decoderkey根据表32中给出的KT值进行分类，并从VendingKey的类型继承它们，从VendingKey派生。

For further information regarding the rules for changing of a key from one type to another type, see Figure 9 and Table 33 in 6.5.2.4.

        有关将键从一种类型更改为另一种类型的规则的进一步信息，请参见6.5.2.4中的图9和表33。