COMpact 5000/R - Firmware V6.6A - Installation, Operation and Configuration V05 03/2016
93
Installation and Commissioning
ISDN End Devices
Connecting the Cable and the Wall Sockets to the Internal S
0
Port (Internal S
0
Bus)
Note:
The default setting is „S
0
external“ for port 1 and „S
0
internal“ for port 2.
•
Terminators enabled or disabled at the internal S
0
port, depending on the bus variant
–
Disabled for a short passive bus in two directions or for a short passive bus with star
topology.
–
Enabled for a short passive bus in one direction, for an extended passive bus and for
PTP wiring.
•
Installation cable (for example, J Y (St) Y 2 x 2 x 0.6) 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 (e. g. IAE or UAE8)
Note:
If possible, only use wall sockets of one type.
•
Two terminators (100 ohm; load capacity 0.25 W) for any wall socket at the end position
•
Maximum distance/line length and number of wall sockets between the devices, 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.
–
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.
Notes:
This restriction to a max. of eight standard ISDN devices (thereof four
with their own power supply, e. g. a wall-mounted power supply) also applies
to a bus with twelve wall sockets.
–
Maximum 1000 m and one wall socket for PTP wiring.
