[nfbcs] Computer Braille Help, Please?

[I. C. Bray]

Hello all,

I have borrowed / inherrited  an older BrailleNote M Power to play with to 
see if I want to consider getting the Apex.

I am trying to figure out how to connect it to wireless...
There are a few characters that I don't know in Braille (or have forgot) and 
was hoping someone would help me with some of them?

I have to type the SSID for my Network and it is:
SDS_NET2.4
 I know to use U-Chord for Upper Case, but I cannot figure out how to type 
the underscore.
The next question I have is, do do I use dropped (nemeth) numbers after my # 
Sign, or not?
I am also supposing that I use 4,6 for the "dot"... correct?

The other thing is, I have a password in the form:

Capital,lower,Capital,lower,lower,number,number,exclaimation 
point,number,capital

Can someone disambiguate this for me?

Example, Password =  RaBBit35!
How would I input that in "Computer Braille"?

Thanks
Ian