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Information about the device interfaces:
– All systems that are connected to the NetModule wireless access point interfaces must
meet the requirements for SELV (Safety Extra Low Voltage) systems.
– Interconnections must not leave the building nor penetrate the body shell of a vehicle.
– Connections for antennas may only exit the building or the vehicle hull if transient
overvoltages (according to IEC 62368-1) are limited by external protection circuits
down to 1 500 V
hull.
– Always keep a distance of more than 40 cm from the antenna in order to reduce
exposure to electromagnetic fields below the legal limits.
– Wireless access points may be operated only with applicable Regulatory Domain con-
figured. Special attention must be paid to country, number of antennas and the an-
tenna gain. WLAN antennas with a higher amplification may be used with a NetModule
router including the "Enhanced-RF-Configuration" software license. The antenna gain
and cable attenuation has to be correctly configured by certified specialized personnel.
A misconfiguration will lead to loss of the approval.
– The maximum gain of an antenna (incl. the attenuation of the connection cables) must
not exceed the following values in the corresponding frequency range:
– WiFi (2.4GHz .. 2.5GHz) < 8.4dBi
– WiFi (5.1GHz .. 5.9GHz) < 9.1dBi
– Only CE-compliant power supplies with a current-limited SELV output voltage range
may be used with the NetModule wireless access points.
General safety instructions:
– Observe the usage limitations of radio units at filling stations, in chemical plants, in
systems with explosives or potentially explosive locations.
– The devices may not be used in airplanes.
– Exercise particular caution near personal medical aids, such as pacemakers and hear-
ing aids.
– The NetModule wireless access points may also cause interference in the nearer dis-
tance of TV sets, radio receivers and personal computers.
– Never perform work on the antenna system during a thunderstorm.
– The devices are generally designed for normal indoor use. Do not expose the devices
to extraordinary environmental conditions worse than IP40.
– Protect them against aggressive chemical atmospheres and humidity or temperatures
outside specifications.
– We highly recommended creating a copy of a working system configuration. It can be
easily applied to a newer software release afterwards.
AP3400
. All other connections must remain within the building or the vehicle
peak
9
User Manual for version 1.9.1
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