How is RS232 cabling pinned out? What does each pin do?
The number preceding each signal name corresponds to the pin number defined in the standard.
DB9
- Received Line Signal Detect (Carrier Detect)
- Received Data
- Transmitted Data
- Data Terminal Ready
- Signal Ground
- Data Set Ready
- Request to Send
- Clear To Send
- Ring Indicator
DB25
- Protective Ground
- Transmitted Data
- Received Data
- Request to Send
- Clear To Send
- Data Set Ready
- Signal Ground
- Received Line Signal Detect (Carrier Detect)
- +P (for testing only)
- -P (for testing only)
- (unassigned)
- Secondary Received Line Signal Detect
- Secondary Clear To Send
- Secondary Transmitted Data
- Transmission signal element Timing
- Secondary Received Data
- Receiver Signal Element Timing
- (unassigned)
- Secondary Request To Send
- Data Terminal Ready
- Signal Quality Detector
- Ring Indicator
- Data Signal Rate Selector
- Transmitter Signal Element Timing
- (unassigned)
Category:
RS232 Serial Cable