Ascotel IntelliGate 2025/2045/2065
Part 1 System Interfaces 63
NT1: Network Terminal
MSN: Multiple Subscriber Number
U/T: ISDN reference point
AD2: Digital user-network interface AD2
a/b: Analogue user-network interface a/b
Fig. 1.6: Basic access in point-to-multipoint configuration, with single-digit direct dial and
parallel terminal
Combinations are also possible in the case of several lines, e.g. one line in point-
to-multipoint configuration and the remaining in point-to-point configuration.
Note:
If terminals (e.g. MSN1) are connected in parallel on the T interface, Col-
lision Detection has to be activated as the PBX and the terminal influence
each another. This also applies in cases where a/b connections are used
on NT1.
Point-to-Point Connection without Direct Dial
Without direct dialling in, only one call number is available. The individual PBX
subscribers can only be reached indirectly via the number.
This variant is suitable above all for systems with primarily outgoing traffic.
Fax
NT1
U T AD2
45
34
a/b
PBX
haz0322aaxxb0
MSN 1: 653 12 33
MSN 2: 653 12 34
MSN 3: 653 13 45
MSN 1
MSN 2 -> 34
MSN 3 -> 45
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