Auerswald COMmander Basic.2 Installation And Commissioning Instructions page 48

Connecting ISDN End Devices
Fig. 45: Short passive bus with star topology
Internal S
on the PBX
max. 75 m
Internal S
on the PBX
Steps to Take
1.
Lay the lines according to the selected bus variant.
2.
Attach the wires to the four terminal clamps in the
internal S port.
0
Note: When assigning the individual wires, orient
yourself with the identifiers subsequently listed or
refer to VDE 0815 when identifiers deviate.
Cable with two
twin wires
Physica a1 Red
l circuit/
b1 black
pair 1
Physica a2 White
l circuit/
b2 yellow
pair 2
3.
Connect the IAE or UAE8 sockets to the terminal
clamps on the internal S
4.
Equip the last wall socket with two terminators. See
Fig. 47.
Note: For a short passive bus in two directions or for
a short passive bus with a star topology, equip the
wall sockets with terminators at both ends.
Further Steps
Connect the end devices to the wall sockets.
48
port
0
max. 75 m
port
0
max. 465 m
Cable with star quad
Without ring
Single rings, 17 mm spacing
Double rings, 34 mm spacing
Double rings, 17 mm spacing
-port. See Fig. 47.
0
Fig. 46: Extended passive bus
To finish commissioning, you need to set up an
internal phone number for each end device in the
COMset configuration manager.
Fig. 47: Wire the wall sockets to the
internal S
max. 35 m
port.
0
Internal S port
0
IAE/UAE8
IAE/UAE8
last
IAE/UAE8
Terminator
Resistances