User's Manual
InstallationTechnical Manual
2904047408 - 10/2020 dormakaba access manager 92 009200-K7 TP4-Client
5.2 Installation lines
5.2.1 General requirements
The installation of the cables must conform to the current national and local regulations. In
general, the following requirements apply.
• Protection against manipulation
– Install the cables inside the security areas.
– Install the cables so that they are hidden or difficult to access.
• Avoiding malfunctions
– Keep the cable routes short.
– Lay low-voltage and data lines away from sources of interference.
5.2.2 Ethernet
Network cable with RJ45 plug, line requirement: CAT.5 S-UTP 4 x 2 AWG 24 oder AWG 22 (ac-
cording to EIA/TIA568) or higher quality.
5.2.3 Lines to RS-485 devices
The RS-485 devices are connected via a bus in 2-wire technology.
Wiring requirements
• Shielded line with twisted wire pairs.
• No other signals may be carried in the wire, except for the low voltage for the power sup-
ply to the RS-485 devices.
• Cable lengths:
Lt The total permissible length (master and branch lines) is max. 1200m.
La If the RS-485 bus and the extra-low voltage is led through one cable, the max. permiss-
ible length is 20m.
• If the distance is long, lay a separate line for the low voltage.
Lb Low voltage in a separate cable
• The length depends on the voltage drop of the cable.
The voltage must conform to the requirement of the RS-485 device.
• For longer distances, use a local power supply.
Ls The permissible length per branch line is max. 100m.
• Not recommended, since branch lines can cause malfunctions.
prelimenary