Have you tried contacting their technical support?
Do you have the original power adapter?
If so, it might have some information printed on it.
The problem is that most companies will not give out details on power adapters as a precaution. When people create their own power adapters, there is a tendency to make mistakes that come in as warranty repairs.
If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.
pinouts for 2wire home portal 100 4 pin power cable layout
4 pin layout only