Technical data

COMpact 3000 analog/ISDN/VoIP - Firmware Version 4.0 - Version of the Manual 03 02/11 61
Installing and Switching on the PBX
ISDN End Devices
Connecting the Cable and the Wall Sockets to the Internal S
0
Port (Internal S
0
Bus)
Connecting the Cable and the Wall Sockets to the Internal S
0
Port (Internal S
0
Bus)
Requirements:
– Cover panel is removed
– Internal S
0
port (only provided at the optionally available COMpact S
0
module or COMpact
ISDN module)
– Terminators enabled or disabled at the internal S
0
port, depending on the bus variant
– Compliance with the maximum distance/line length between the devices, depending on the
bus variant
– 4-core installation cable (e. g. J-Y(St)Y 2x2x0,6), preferably star quad stranding
– Under unfavorable conditions, for example, near a strong transmitter or an electrical power
line: screened cable
– ISDN wall sockets (e. g. IAE or UAE8)
Note: If possible, only use wall sockets of one type.
– Two terminators (100 Ohm; load capacity min. 0.25 W) for any wall socket at the end position
1. Lay the lines according to the selected bus variant.
2. Attach the wires to the four terminal clamps at the internal S
0
port.
Note:
When assigning the individual wires, orient yourself with the identifiers
subsequently listed or refer to VDE 0815 when identifiers deviate.
Warning: Power surges, which can occur during electrical storms, can
cause life-threatening electric shocks or damage/destroy the PBX.
• Lay all the cables inside the building.
• Do not use the S
0
ports for connecting an external private branch
exchange.
Cable with Two
Twin Wires
Cable with Star Quad
Physical circuit/
pair 1
a1
b1
red
black
without ring
single rings, 17 mm spacing
Physical circuit/
pair 2
a2
b2
white
yellow
double rings, 34 mm spacing
double rings, 17 mm spacing