Auerswald COMmander Basic.2, Installation And Commissioning Instructions

Page: 41 / 84

Connecting to the Network Provider
41
Installing Cable Between the External S
0
Port and ISDN (NTBA)
Warning: Power surges, which can occur during
electrical storms, can cause life-threatening electric
shocks or damage/destroy the PBX.
씮
Let a skilled electrician lay all the cables inside the
building.
Requirements
– S
0
module
– Enabled operation mode “S
0
external” on the S
0
port
in question. See Page 20 .
– Enable the terminators at both ends of the connection
– in the NTBA and in the PBX on the external S
0
port
in question. See Page 21 .
– The distance/line length between the devices
depends on the connection type:
Max. 150 m for a Point-to-Multipoint connection
Max. 1000 mm for a Point-to-Point connection
– Installation cable (for example, J Y (St) Y 2x2x0.6)
with the following characteristics:
4-core
Unscreened; however: screened for unfavourable
conditions, for example, near a strong transmitter
or an electrical power line
Preferably star quad stranding
Note: If you would like to install an external S
0
bus
with wall sockets, please refer to Chapter Connecting
Cable and Wall Sockets to the Internal S0 Port
(Internal S0 Bus) on page 47
.
Steps to Take
1.
Attach the wires to the four terminal clamps in the NT.
Note: When assigning the individual wires, orient
yourself with the identifiers subsequently listed or
refer to VDE 0815 when identifiers deviate.
2.
Connect the NTBA to the four terminal clamps on the
external S
0
port. See Fig. 38 .
Connecting the Primary Rate Interface (NTPM) Directly to the S
2M
Port
Requirements
– COMmander S
2M
module
– Enabled NTPM operating voltage on the S
2M
module
in as far as the NTPM is not powered by a separate
power plug. See
Page 18 .
Note: When using this operating voltage, the UB+
and UB- contacts on the S
2M
module must be
connected to the NTPM.
– NTPMX-GE (NTBA with RJ-45 socket)
– Minimal distance between the devices
– Connection cable with RJ-45 connectors at both
ends. The RJ-45 socket assignment on the S
2M
mod-
ule is shown in Fig. 39 on page 42 .
Steps to Take
1.
Insert one end of the connection cable into the RJ-45
socket on the S
2M
port.
2.
Insert the other the end of the connection cable into
the RJ-45 socket on the NTPM.
Cable with two
twin wires Cable with star quad
Phys.
circuit/
pair 1 a1 Red Without ring
b1 black Single rings, 17 mm spacing
Phys.
circuit/
pair 2 a2 White Double rings, 34 mm spacing
b2 yellow Double rings, 17 mm spacing
Fig. 38: Wire up the NTBA and the external S
0
port
NT