Ascotel IntelliGate 2025/2045/2065
666 Planning a private network Part 3
Fig. 3.57: Two systems connected via a basic access
It is important that an S bus be used on the one side (to which terminals are nor-
mally connected) and a T interface on the other side as for the public network.
The user-network interface with the S bus is converted to "S-bus protocol =
EXTERNS" in the interface configuration. As a result the user-network interface
acts like a network interface. This means no more terminals can be operated there
and no numbers allocated. In return the network interface can now be incorpo-
rated into a trunk group.
The system with access to the public network should contain the S interface to
ensure the systems are synchronized (see also "Synchronization", page 669).
Several basic accesses between two systems are grouped together in a trunk
group.
Connection types for basic accesses:
• Copper lines without transmission equipment
• Leased lines
• Copper lines with transmission facilities
max. 1'000 m
S external
S external
T
T
T
T
max. 8 km
Copper line
2
Copper line
NT1 NT1
S bus extension
4
4
4
230V
PTSU
10
230V
PTSU
10
PINX 1 PINX 2
PINX 1 PINX 2
PINX 1 PINX 2
Leased line
haz0810aaena0
To Next Page
Loading...
