Home >Common Problem >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:
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
The above is the detailed content of db9 female interface definition. For more information, please follow other related articles on the PHP Chinese website!