2-9
Grounding the router with a grounding conductor buried in
the earth ground
If the installation site does not have any grounding strips, but earth ground is available, hammer a
0.5 m (1.64 ft) or longer angle iron or steel tube into the earth ground to serve as a grounding
conductor.
Weld the yellow-green grounding cable to the angel iron or steel tube and treat the joint for
corrosion protection.
Figure2-10 Grounding the router with a grounding conductor buried in the earth ground
Installing a 4G SIM card
CAUTION:
•
Do not hot swap a 4G SIM card.
•
To avoid damaging the SIM card slot, do not use excessive force when installing a 4G SIM
card.
•
To avoid slot damage, make sure the SIM card is flush with the card tray when a SIM card tray
is used.
•
The screw on the 4G SIM card slot cover is M3 × 4 mm (0.16 in) countersunk screw. Use a
PH2 screwdriver to loosen and fasten the screw on the cover. A mismatched screwdriver might
damage the screw.
Only the RT-MSR810-LM, RT-MSR810-LM-CNDE-SJK, RT-MSR810-W-LM, RT-MSR810-LM-HK,
RT-MSR810-W-LM-HK, RT-MSR810-LM-GL, RT-MSR810-W-LM-GL, RT-MSR810-LME, RT-
MSR810-LMS, RT-MSR810-LMS-EA, RT-MSR810-LUS, RT-MSR810-LM-SI, RT-MSR810-LM-EA,
and RT-MSR810-LM-EI routers support 4G SIM cards.
The RT-MSR810-LM, RT-MSR810-LM-CNDE-SJK, RT-MSR810-W-LM, RT-MSR810-LM-HK, RT-
MSR810-W-LM-HK, RT-MSR810-LM-GL, and RT-MSR810-W-LM-GL routers support standard
SIM cards.
G rounding
conductor
Earth
