Safety Precautions; Router Functional Diagram - iRZ RU21w User Manual

2.7.

Safety Precautions

Limitations to the router use in proximity of other electronic devices:
Switch off the router in hospitals or in proximity of medical equipment (for example, cardiac pacemakers,
hearing aid devices) as it may interfere with medical equipment
Switch off the router in aircraft and take measures to prevent its accidental switching on
Switch off the router in proximity of fueling stations, chemical facilities, areas of blasting operations The
router may interfere with equipment; at short distances it may also interfere with TV and radio sets.
Protect the router against dust and moisture.
Observe the permissible levels of power supply and vibration at the place of router installation.
2.8.

Router Functional Diagram

Basic functional assemblies of the router (see Figure 1):
Power connector (Power)
Voltage converter (PMIC)
SMA-connectors for external antennas (SMA: Wi-Fi, GPS, GSM)
Communication module(s) (GSM)
CPU + integrated functions (Ethernet Switch, Wi-Fi)
RAM (SDRAM)
Ethernet interfaces (LAN: 4×RJ45)
DB9 connector for RS232
Terminal block for GPIO, RS485
SIM card 1/2 holder
SD card reader
LED indication block
Internal software reset button (RST)
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