I suggest you look aat the schematics for the RCM4000 and the proto board at the following link:
http://www.digi.com/support/productdetail?pid=4346&type=documentation
I suggest you look aat the schematics for the RCM4000 and the proto board at the following link:
http://www.digi.com/support/productdetail?pid=4346&type=documentation