User Manual B-Net 93 60 Mounting and installation
01/2006 © Kaba Benzing GmbH 21
5.3 Installation lines
5.3.1 Power supply internal
With devices that have an integrated power supply SV9001 (optional), the mains
voltage supply is led to the terminal.
What must be considered?
The terminal blocks on the SV9001 power supply are designed for a wire cross
section of 1.5 mm² maximum.
Line requirements
Power cord max. 3 x 1.5 mm
2
.
5.3.2 Power supply external
Devices with 24 V input are fed with an external power supply,
e.g. SV900 item no. 04021688 or SV905 item no.04033373.
What must be considered?
The terminal’s housing must be grounded. It is therefore imperative to carry the
ground wire from the power supply to the terminal.
In case of long lines, the voltage drop --caused by the line resistance-- must be
considered.
Line requirements
Cables with a cable diameter from 0.5 mm to 0.8 mm can be used.
Three wires are required for power supply + earth (SV900).
If door-opener voltage is required, two further wires are needed (SV905).
Recommended cable
CAT.5 S-UTP 4 x 2 AWG 24 or AWG 22 (according to EIA/TIA568) or higher.
5.3.3 Subterminal
The subterminals are connected via a 2-wire sub-partyline. It can be designed in
star-shape or as partyline.
What must be considered?
No further signals or voltages may be carried along inside the data cable to the
subterminal (e.g. door-opener triggering, door-frame contact, etc.).
A separate power supply must be provided for the subterminals.
The supply voltage for the subterminals may not
be taken from the terminal, it may
also not
be carried along within the data cable.
The complete bus connection (master lines and branch lines) may be up to 2,000
meters long. One branch line may not exceed 100 m.
Line requirements
Shielded line with twisted wire pairs,
for instance standard telephone cable J-Y (St) Y 2 x 2 x 0.6 mm.
Recommended cable
CAT.5 S-UTP 4 x 2 AWG 24 or AWG 22 (according to EIA/TIA568) or higher.
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