ISDN , . , (Customer Premises Equipment, ): ( , , ) NT, , ISDN.
:
- 64 /;
D - 16 64 /;
- 384 / (), 1536 / () 1920 / (12).
( , ) , 64 /. TDM. , ISDN . , (semipermanent) , . .25.
D . , . . , D .
. , , .
ISDN .
ISDN - (Basic Rate Interface, BRI) (Primay Rate Interface, PRI).
BRI 64 / ( ) 16 / ( D). . BRI 144 / , - 192 /. TDM, , . BRI , 48 . 2 , 4 D. 250 , 64 / 16 / D. , .
|
|
BRI 2B+D, B+D D ( ).
1.430.
PRI . PRI 30B+D, 23B+D. D 64 /. , - . 2,048 / 1,544 / , PRI .
PRI , 20B+D. 1920 /. PRI D, , D, 24 31.
. 2,048 1,544 /. 3HO+D 5HO+D . HI , (1,536 /) HI 2 (1,920 /) D .
PRI DS-1 1 1. PRI 1.431.