A keystone plug is the matching maleconnector, usually attached to the end of a cable or cord.
一块基石插头是匹配的插头，通常连接到电缆或软线的结束。
2
Users who prefer to use thermocouples with a miniature maleconnector can use a thermocouple adapter with stripped ends on one side and a female miniature female connector on the other.
The pin assignment for this connector is shown in Figure 2. The connector for DCE equipment is male for the connector housing and female for the connection pins.