Process and dialogue module ecomatDisplay CR1058, CR1059
20
Shield connection
To avoid contact corrosion on the shield connection of the device, do not
use any copper or nickel-plated materials for the bolting elements!
►
In very corrosive environments such as extremely salty air, use screws with
surface finishing on a zinc/nickel basis with thick-film passivation and sealing�
5.7 Ethernet interface
Communication interfaces are insulated among each other, to other circuits and
to accessible surfaces of the device by means of basic insulation 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 construed as TNV-1 circuits.
► Use a shielded CAT5 cable. STP (Shielded Twisted Pair), to EIA/TIA-568
Length max� 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 Ethernet cable in parallel to live cables�
Interference due to external influences
Faulty or insufficient radio interference suppressors in other electrical
equipment, such as inverters or generators, as well as voltage fluctuations
when switching on/off high 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.