Two types of twisted-pair cable are shielded twisted-pair (STP) and unshielded twisted pair (UTP).
双绞线缆线的二类型是遮蔽双绞线(STP)和无遮蔽双绞线(utp)。
Unshielded twisted pair This type of cable belongs to category 3, and is not recommended for use in an industrial environment.
非屏蔽双绞线这种电缆属于3类，因此不推荐用于工业环境中使用。
Unshielded twisted pair This type of cable belongs to category 3, and is not recommended for use in an industrial environment.
非屏蔽双绞线这种电缆属于3类，因此不推荐用于工业环境中使用。
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