RS232 Interface connector used in Cool Master is D-Type 9-pin DB9 female connector.
Cool Master DB9 Connector front view
DB9 Pin |
Signal Lvel |
Description |
2 |
±12V |
TxD (Data from Cool Master) |
3 |
±12V |
RxD (Data to Cool Master) |
5 |
GND |
Ground |
Connecting Cool Master to Home Automation Equipment
According to RS232 specification cable length should not exceed 25m. RS232 Cable supplied with Cool Master is 1.5m length suitable for direct connection to PC RS232 serial port.