Andrew Farrell
12th April 2004, 01:11 PM
Out of curiosity last yesterday, I opened the cradle to see whats in it
I worked out with my trusty multimeter how to add an RS-232 (full) to it
On the pic with the CON1 connector starting from the D6 diode (reversed in picture) on Pic1
Cradle Pin---XDA pin
1-------------16,17,18, GND
2-------------6 DCD
3-------------7 CTS
4-------------8 TXD Main Tx point for eg GPS
5-------------9 RTS
6-------------16,17,18, GND
7-------------10 RXD Main Rx point for eg GPS
8-------------11 DTR
9-------------16,17,18 GND
10------------unknown
11------------unknown
12------------unknown
13------------unknown
14------------unknown
To add audio out to your cradle find on the CON2 beside the DC in connection of pic 4
Audio L is on the 10 o'clock side of the connector (from the picture) and Audio R is on the 2 o'clock side
Here are two larger pictures attached
The mic input is harder. The PCB's have a lot of points for further components to be used, my guess is for the XDA2 car kit audio control, as on the PCB / cradle there is a hole for a microphone, just look at your cradle now, those 3 tiny holes! Also look at the back of the cradle, there are 3 connections, DC in, USB, and a piece of rubber. This is where a headphone connector SHOULD be (cheap bas~%rds)
But if you are determined to put a mic in it (pin1 on XDA) can be found on the PCB with the 22pin connection. On the side with the LED's find TP47 , its one of the nearest points to the 22 pin connection.
And a final note these finding are not guaranteed to work, I have not tested this yet, so test fully yourself before you use this info. This info is a guideline only !
I worked out with my trusty multimeter how to add an RS-232 (full) to it
On the pic with the CON1 connector starting from the D6 diode (reversed in picture) on Pic1
Cradle Pin---XDA pin
1-------------16,17,18, GND
2-------------6 DCD
3-------------7 CTS
4-------------8 TXD Main Tx point for eg GPS
5-------------9 RTS
6-------------16,17,18, GND
7-------------10 RXD Main Rx point for eg GPS
8-------------11 DTR
9-------------16,17,18 GND
10------------unknown
11------------unknown
12------------unknown
13------------unknown
14------------unknown
To add audio out to your cradle find on the CON2 beside the DC in connection of pic 4
Audio L is on the 10 o'clock side of the connector (from the picture) and Audio R is on the 2 o'clock side
Here are two larger pictures attached
The mic input is harder. The PCB's have a lot of points for further components to be used, my guess is for the XDA2 car kit audio control, as on the PCB / cradle there is a hole for a microphone, just look at your cradle now, those 3 tiny holes! Also look at the back of the cradle, there are 3 connections, DC in, USB, and a piece of rubber. This is where a headphone connector SHOULD be (cheap bas~%rds)
But if you are determined to put a mic in it (pin1 on XDA) can be found on the PCB with the 22pin connection. On the side with the LED's find TP47 , its one of the nearest points to the 22 pin connection.
And a final note these finding are not guaranteed to work, I have not tested this yet, so test fully yourself before you use this info. This info is a guideline only !