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Wireless Light-Level Monitoring

ILT1000

Wireless Range

Testing wireless range is very dependent on the environment.  In a typical office and light 

manufacturing environment this solution showed a range in excess of 100 feet / 30 meters.

Error Handling

Three types of error handling scenarios were tested for each of the wireless configurations.  The

TL-WR702N results are as follows:

Error Handling Condition

Result

Wireless access point goes out 
of range

During this testing, a system restart was forced (Windows 8 
equivalent of a BSOD) upon leaving the wireless range while 
accessing the NUS device.  This is likely a driver issue related 
to use on Windows 8.  Past testing has demonstrated the 
behavior on Windows XP, but not on Windows 7.  This is 
likely an issue related to the combination of system, OS-
version, and driver.  If the wireless range is lost and re-gained
while the NUS device is not being accessed, the restart does 
not occur.  The workaround is to ensure that wireless 
connectivity is maintained while accessing the NUS device. 

Monitoring station/computer 
returns from power down mode.

With “Connect Device Automatically” is selected (See Figure 
15), the ILT1000 is automatically connected when returning 
from low-power mode.

Reboot of the monitoring 
station/computer.

With “Connect Device Automatically” is selected (See Figure 
15), the ILT1000 is automatically connected upon start-up or 
reboot.

Summary:

-

Pros

o

Works as advertised, with the combination of the wireless router and Ethernet-USB 

Bridge providing robust wireless-to-USB bridging and supporting the ILT1000.

o

Can be configured to automatically re-connect ILT1000’s after reboot and return 

from low-power modes.

o

Simple installation and setup.

o

1 reading/second sampling, which is likely good enough for most remote monitoring 

applications.

-

Cons

o

Each Monoprice/Winstars NUS device can handle a maximum of 4 USB devices 

connected to it.  To expand beyond 4, multiple NUS devices are required.  

o

Potential system restart requirement, based on the specific configuration tested, 

while accessing the USB device when network connectivity is lost.

17

Содержание ILT1000

Страница 1: ...Wireless Light Level Monitoring ILT1000 ILT1000 Application Note Wireless Light Level Monitoring 1...

Страница 2: ...is focused on wireless monitoring the same principles apply to wired Ethernet monitoring Disclaimer The application note below describes ILT s experience integrating 3rd party devices with its ILT100...

Страница 3: ......

Страница 4: ......

Страница 5: ...llation 1 The installation calls for a wired Ethernet connection for the initial configuration but an Ethernet cable is not provided in the package 2 A reboot is required after installation 3 The test...

Страница 6: ...Wireless Light Level Monitoring ILT1000 6...

Страница 7: ...t does not automatically connect to them Note that HCC also displays printer icons as opposed to something more generic for the ILT1000 s To connect to an ILT1000 the particular device is selected as...

Страница 8: ...Level Monitoring ILT1000 Figure 5 Device connected After manually connecting the remaining two devices all show as connected Figure 6 and all show up within Windows Device Manager as USB to Serial dev...

Страница 9: ......

Страница 10: ......

Страница 11: ......

Страница 12: ...reestablished Reboot of the monitoring station computer HCC finds the devices but requires manual Connect action on each device before connection can be reestablished Summary Pros o Works as advertise...

Страница 13: ......

Страница 14: ......

Страница 15: ......

Страница 16: ......

Страница 17: ...to ensure that wireless connectivity is maintained while accessing the NUS device Monitoring station computer returns from power down mode With Connect Device Automatically is selected See Figure 15...

Страница 18: ......

Страница 19: ...tically connected upon start up or reboot Summary Pros o Works as advertised with the combination of the wireless router and Ethernet USB Bridge providing robust wireless to USB bridging and supportin...

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