User manual
CHAPTER 2. HARDWARE DESCRIPTION 9
2.4.2 Ethernet LEDs
All Ethernet ports have two LEDs to indicate the ports link and activity status.
LED State Meaning
Green On Link on
Blink Data received
Off Link off
Yellow On Full duplex
Off Half duplex
Table 2.2: Ethernet LED description
2.4.3 3G module status LED
3G module has its own status LED to indicate the link status. LED is located on side panel in the SIM card slot
(see section 2.3) Red blink means there is no SIM card, green blink means the 3G connection is up.
2.5 Networking
2.5.1 Mobile WAN (3G)
Arctic 3G has a high speed wireless functionality which allows the use of bandwidth demanding wireless applica-
tions. Arctic 3G supports wireless data speeds up to 1.8Mbit/s, however the practical data transfer rates depend
on SIM card speed and wireless network capacity.
Networks Frequencies Maximum data rates
UMTS with HSDPA (cat 11/12) 2100 MHz 1.8Mbps downlink / 384kbps uplink
EDGE / GPRS class 10 850/900/1800/1900 MHz 216 kbps downlink/ 108 kbps uplink
Table 2.3: Mobile WAN (3G) specifications
Antenna connector type is SSMB-nano. Adapters for FME antennas are available, Viola Systems order code
is 3450.
To use wireless connection, SIM card with data transfer enabled is needed. To install SIM card:
1. Turn off the unit
2. Insert the SIM card into slot so the the contacts are facing down and the notch on the corner is facing out
3. Gently push the card in the slot with pointy object, i.e. pen or unfolded paper clip
4. The card should be in place when the notch on the card is inside the slot and behind the spring
To eject the SIM card from the slot, press the small button below the SIM cards notched corner. Use pointy object
like unfolded paper clip or screw driver to do this. When the button is pressed, the card will pop outwards and
can be removed.
Note: It is not recommended to insert or remove the SIM card while the Arctic 3G is turned on
Figure 2.4: SIM card installation