Information about the device interfaces:
– All systems that are connected to the NetModule router 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 Vpeak. All other connections must remain within the building or the vehicle
hull.
– Installed antennas must always be at least 40 cm away from people.
– All antennas must have a distance of at least 20cm from each other; in the case of
combined antennas (mobile radio / WLAN / GNSS), there must be sufficient isolation
between the radio technologies.
– Devices with a WLAN interface may be operated only with applicable Regulatory Do-
main configured. Special attention must be paid to country, number of antennas and
the antenna gain (see also chapter 6.3.4). WLAN antennas with a higher amplifica-
tion may be used with the NetModule router "Enhanced-RF-Configuration" software
license and the antenna gain and cable attenuation that have been correctly config-
ured 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:
– Mobile radio (600MHz .. 1GHz) < 3.2dBi
– Mobile radio (1.7GHz .. 2GHz) < 6.0dBi
– Mobile radio (2.5GHz .. 4.2GHz) < 6.0dBi
– WiFi (2.4GHz .. 2.5GHz) < 3.2dBi, WiFi (5.1GHz .. 5.9GHz) < 4.5dBi
– Note that GNSS signals can be obfuscated or blocked by malicious third-party devices.
– Only CE-compliant power supplies with a current-limited SELV output voltage range
may be used with the NetModule routers.
– A Power Source Class 3 (PS3) power supply (with 100 W or more) shall only be used
under the condition that a cable strain relief on the power cable to the router is applied.
Such a cable strain relief ensures that the wires on the router screw terminal connector
are not disconnected (e.g. if under an error condition, the router would be tangling on
the cable). The cable strain relief must withstand a pulling force of 30 N (for router
weight up to 1 kg) applied to the cable of the router.
– Une alimentation de classe 3 (PS3) (100 W ou plus) ne doit etre utilisee que si le
cable d alimentation du routeur est equipe d un dispositif anti-traction. A condition qu
une decharge de traction soit appliquee au cable d alimentation du routeur. Une telle
decharge de traction permet de s’assurer que les fils du connecteur a vis du routeur
ne soient pas deconnectes (par exemple si, en cas d erreur, le routeur s emmale dans
le cable). La decharge de traction du cable doit resister a une force de traction de 30
N (pour un routeur d un poids inferieur ou egal a 1 kg) appliquee au cable du routeur.
NB1601 11 User Manual for NRSW version 4.8.0.103
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