[cisco-nas] Back to BAck PRI config

[Aaron Leonard]

> Hello Kristian
 
> I am interested in looking at the back to back PRI config.  Thanks
 
> Sincerely
 
> Joey

1. Use primary-net5 if E1 or primary-ni if T1
2. Set one side to isdn protocol-emulate network and the other
to protocol-emulate user (the default)
3. Use a T1/E1 crossover cable like this:

T1/E1 crossover (for PRI and CAS back-to-back connection):  

RJ-45 ----- RJ-45
   1  -----  4
   2  -----  5
   4  -----  1
   5  -----  2

RJ-45 ----- DB-15
   1  -----   1
   2  -----   9
   4  -----   3
   5  -----  11

DB-15 ----- DB-15
   1  -----   3
   3  -----   1
   9  -----  11
  11  -----   9

Cheers,

Aaron