Hitachi Kokusai Electric Inc. SL24G-US-02 Manuel D’Utilisation

7. Appendix

  

7-5 

Abnormal 

operations 

 

100

Symptoms 

Cause and Resolution 

Wireless link speed is slow 

There may be an error in the wireless settings. 

When the output power is set at a fixed value, it will be slow due to attenuation 

from rain if the value is too much smaller than the appropriate value for your 

installation environment. 

If you set the automatic distance switching to a fixed long distance, it may 

become slow if the output power for short distance does not reduce to a value 

that is appropriate for the installation environment.   

 

 

Receive S/N ratio margin might not be sufficient. The wireless link speed 

changes dynamically according to the receive S/N ratio margin.   

 

 

Check whether there are any alarms between this device and the opposed 

device.  

 

The wireless master and slave 

transmission ratio does not go 

to 8:2 

 

Check the wireless transmission ratio for the master.   

Data from a wireless 

disconnection is sent when 

reconnecting 

 

When the wireless disconnects, the data received from a LAN is stored in the 

wireless transmission buffer.   

If you set the capacity for the wireless transmission buffer to low, you can 

decrease the quantity of data that is sent when reconnecting.   

 

The "Wireless input 

exceeded" warning appears 

If you have set the automatic distance switching to switch automatically, the 

"Wireless input exceeded" warning is displayed when the devices are installed in 

close proximity to each other.   

Normally you can still operate without any issues, but the value displayed in the 

receive level will not be correct.   

 

In multiple adjacent wireless 

opposed devices, the same 

wireless channel is 

automatically selected 

If you start the masters at the same time, the same wireless channel might be 

selected automatically. Switch the master and slave to avoid starting them at the 

same time, or set ranges for the wireless channels in each master so that they 

do not overlap.   

 

I want to reduce the effects of 

snow and rain 

 

Install the antenna in a location that is less exposed to snow and rain. 

 

Temperature abnormalities 

occur 

Temperature abnormalities might occur due to the effects of the ambient 

temperature and direct solar radiation. Reduce the effects of direct solar 

radiation by positioning SINELINK in a location that is well ventilated and not in 

direct sunlight. 

 

I want to restart from a remote 

location 

To restart automatically, click the "Restart" button.