UK
Process and dialogue module ecomatDisplay CR1074, CR1075, CR1076, CR1077
21
5.7 Ethernet interface
Communication interfaces are insulated from each other, from other circuits and
from device surfaces that can be touched, with basic insulation according to IEC
60950-1 (secondary circuit with max� operating voltage
,
supplied from the mains circuit up to 300 V of overvoltage category II).
They are designed as TNV-1 circuits.
►
Use a shielded CAT5 cable�
STP, shielded twisted pair, according to EIA/TIA-568
Max� length 25 m
The max� cable length depends, for example, on the bus topology, the
selected operating mode (10/100 Mbits/s) or the quality of the connectors.
►
Use screened connector housings and connect the screen of the Ethernet
cable to the connector housing�
►
Do not lay the cable in parallel to live cables�
Interference due to external influence
Faulty or insufficient radio interference suppressors in other electrical
equipment, such as inverters or generators, as well as voltage fluctuations
when switching on/off electric loads may lead to problems with the data
transmission�
5.8 Analogue video inputs
►
If the analogue video inputs are used, use connection cables in STP (shielded
twisted pair) or coaxial cables, versions with 75 ohms impedance.
5.9 USB interfaces
Wiring
This USB interface is connected to a USB connector in the control panel or in the
dashboard� It is used for the connection of USB 2�0 devices�
The supply of external USB devices via the USB interface is protected against
overload� Max� continuous current: 500 mA
