Connections With Basic Accesses - ASCOM Ascotel 2025 System Manual

Transmission facilities for primary rate accesses:
• HDSL modems for primary rate accesses, 2 or 4-wire variants
• HDSL modems with multiplexer for combined telephony and data networks
• Transmission facilities for fibre optic cables
6.1.4.2

Connections with Basic Accesses

Systems can also be connected with one or several basic accesses.
PINX 1
PINX 1
PINX 1
Fig. 3.51: 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 external" in the inter-
face 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 incorporated into a trunk
group.
HBT_20321104_03/B0_en
S ext.
copper line
max. 1'000 m
copper line
S ext.
PTSU
10
max. 8 km
4
S bus extension
230V
NT1
T
leased line
ascom Ascotel 2025/2045/2065
T
PINX 2
4
T
PTUS
PINX 2
10
2 4
230V
NT1
T
PINX 2
haz0810aaena0
Planning a Private Network 3.93