Auerswald COMmander Basic.2, Инструкции по установке и вводу в эксплуатацию

Страница: 47 / 84

Connecting ISDN End Devices
47
Connecting Cable and Wall Sockets to the Internal S
0
Port (Internal S
0
Bus)
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.
Note: For a structured cable installation configured
on one of the 19" casing variants, CAT5 cables and
CAT5-wall sockets are used instead of the cables
and wall sockets listed here. Instead of terminators
installed in the wall sockets, pluggable bus
connections (RJ-45 jacks with integrated terminators)
are used.
Important: For structured cable installation on a 19"
casing variant, the line length all of the applicable end
devices must be taken into account.
Requirements
– Enabled operation mode ”S
0
internal” on the S
0
port
in question. See Page 20 .
– In the PBX, enabled or disabled the terminators on
the internal S
0
port in question, depending on the bus
variant. See also Page 21 .
Disabled for a short passive bus in two directions
or for a short passive bus with star topology. See
Fig. 44 and Fig. 45 .
Enabled for a short passive bus in one direction,
for extended passive bus and for Point-to-Point
wiring. See
Fig. 42 , Fig. 43 and Fig. 46 on
page 48 .
– 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
– ISDN-wall sockets (for example, IAE or UAE8)
Note: If possible, only use wall sockets of one type.
– Two terminators (100
⏲
; load capacity min. 0.25 W)
for the any wall socket at the end position
– Distance/line length between the devices as well as
the number of wall sockets, depending on the bus
variant:
Maximum of 150 m and twelve wall sockets for one
short passive bus. This bus can be laid in one
direction or in two directions from the internal S
0
port. See Fig. 43 , Fig. 44 and Fig. 45 .
Note: Also for a bus with twelve wall sockets, this
restriction applies to a max. of eight devices.
Note: Wiring in more than two directions (star
configuration) is not permitted.
Maximum of 500 m and four wall sockets for one
extended passive bus. For this bus variant, the
wall sockets are connected on the last 35 m. The
first 465 m remain free. See
Fig. 46 on page 48 .
Maximum 1000 m and one wall socket for Point-to-
Point wiring. See
Fig. 42 .
Fig. 42: Point-to-Point wiring
max. 1000 m
Internal S
0
port
on the PBX
Fig. 43: Short passive bus in one direction
max. 150 m
Internal S
0
port
on the PBX
Fig. 44: Short passive bus in two directions
Internal S
0
port
on the PBX
max. 150 m