How many B channels does an ISDN PRI support?

How many B channels does an ISDN PRI support?

How many B channels does an ISDN PRI support?

A.
2

B.
8

C.
23

D.
48

Explanation:
Section Reference: Defining Other WAN Technologies and Internet Connectivity
A primary rate ISDN (PRI) is 1.536 Mbps, and it runs on a T1 circuit. PRI has 23 equal 64 Kbps B channels for
data, along with one 64 Kbps D channel for timing.



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chukk

chukk

30 in Europe!

E1 – in Europa 2048 kbit/s Bruttodatenübertragungsrate wie folgt in 32 Kanäle zu je 64 kbit/s aufgeteilt:
30 bidirektionale Nutzkanäle mit je 64 kbit/s (zusammen 1920 kbit/s)
1 Signalisierungskanal mit 64 kbit/s
1 Synchronisationskanal mit 64 kbit/s