Auerswald COMpact 4000 Operation Manual page 81

– 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
– 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.
Warning: Power surges, which can occur during electrical storms, can
cause life-threatening electric shocks or damage or destroy the PBX.
• Hire a qualified electrician to lay the cables within the building.
1. Lay the lines according to the selected bus variant.
2. Attach the wires to the four terminal clamps at the internal S
COMpact 4000 - Firmware V6.6A - Installation, Operation and Configuration V03 03/2016
Connecting the Cable and the Wall Sockets to the Internal S
Installation and Commissioning
ISDN End Devices
Port (Internal S
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port.
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port.
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Bus)
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