db9 female interface definition

1-Black 2-Red 3-Brown 4-Orange 5-Yellow 6-Green 7-Blue 8-Purple 9-White B: 1-Black 2-Brown 3-Red 4-Orange 5-Yellow 6-Green 7-Blue 8-Purple 9-White

1. Carrier Detection (DCD - Data Carrier Detect) 2. Receive Data (RXD - Receive Data )

3. Transmit Data (TXD)#5. Signal Ground (SG - System Ground)

6. Data Ready (DSR - Data Set Ready)

7. Request to Send (RTS - Request to Send)

8. Clear to Send (CTS - Clear to Send)

9. Ring Indicator (RI - Ring Indicator)

DB9 Male/Pin Pin Pin definition:

#Pin number 2 3 5 1, 4, 6 7, 8

Signal definition RXD TXD Ground Internally connected Internally connected

Note:

This port can be connected to equipment that communicates with the computer

DB9 female/hole pin definition ：

Pin number 2 3 5 1, 4, 6 7, 8

Signal definition TXD RXD Ground Internally connected Internally connected

Note:

This port can be directly plugged into the COM port of the computer

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