Click either image for a larger view.
PC Serial Port, CI-V Interface and Radio Connections
RS-232 |
PC 25-pin Port |
PC 9-pin Port |
CI-V PC Board |
Radio |
*DTR |
20 |
4 |
J1 |
|
GND |
7 |
5 |
J2, J6 |
GND |
TX |
2 |
3 |
J3 |
|
RX |
3 |
2 |
J4 |
|
J5 |
I/O |
| *Power is "stolen" from
the PC's DTR line. Some PC's (mainly laptops) do not have enough current to power the interface. In that case, you may use a 9 volt battery or other 9 to 15 volt source with positive to pin J1 and negative to J2 or J6. Also, a few older PC's swapped RX and TX on their serial ports. |
Other CI-V Links...
W8WWV's CI-V Page - Nice descriptions and other links
Ekki's CI-V Resource Page
Design by Perry Ogletree. Return to Home Page.