Sontay RF--RXS--B, Руководство пользователя

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Best Practise Points:
1. Always conduct a site survey, and ensure that if you plan to use an external extension aerial on the
system receiver (for example, if the receiver is to be in a metal panel), you use the same external
extension aerial on the SSK receiver for the survey. Document the survey thoroughly, and leave a
copy on site.
2. When planning where routers and RF-­‐IOMs are going to be needed, plan for “redundancy”, i.e.
what happens to all the EDs connected to a router if the router fails? Backup routers are worth
considering. See pages 14 -­‐ 16.
3. Don’t switch on EDs until they’re ready to be commissioned. If they’re powered on without a
parent in range, they will eventually sleep to preserve battery life, only “waking” occasionally to
scan for a parent. This may slow commissioning down. If an ED has been powered up for more
than 20 minutes without a parent, power-­‐cycle it.
Pressing the reset button on an ED DOESN’T
reset the ED, it only resets the battery hours run time .
4. Generally speaking, wireless works best in a horizontal plane, so expect reduced signal strength if
the receiver is on a different floor to the routers/RF-­‐IOMs/EDs. A good rule of thumb is to have the
receiver on the same floor as its children, though this isn’t always practical.
5. 2.4GHz wireless signals don’t go through metal! Plan to circumvent metal obstructions where
possible.
6. If the installation environment is one where obstructions are likely to change regularly (in a
warehouse, for example!), try to conduct the site survey under a “worst-­‐case” scenario -­‐ i.e.
assume that at some point, there’s going to be an obstruction between the ED/router/RF-­‐IOM and
its parent at some time. Simulate it, if possible.
7. When commissioning the installed system, turn the receiver on first, then all the routers and RF-­‐
IOMs -­‐ starting with “layer” nearest the receiver and working outwards. It’s worthwhile checking
all the routers and RF-­‐IOMs are online in CMS
before finally powering up the EDs.
8. When EDs first join a network, values such as hours run and battery hours run will not be displayed
-­‐ the values are shown as question marks. This is normal, as these values need to be requested
from the device (right-­‐click on device and select “Refresh Node Information”).
9. Remember that when a receiver scans all 16 channels for the best one, the channel chosen is the
best
where the receiver is . On “long” networks with several “layers” of routers, the channel chosen
by the receiver may not always be the quietest at the far end of the network. When the installed
network is finally formed, press the receiver reset button and ensure the network reforms
properly. This will ensure that, in the event that the receiver needs to change channels (for
example), it will work seamlessly.
10. As each network is commissioned, save the layout -­‐ even if there isn’t a background graphic
loaded. This is a good aid to quickly viewing network topology.
11. Document each network! In CMS, right-­‐click on the receiver in the hierarchical display and select
“Print Preview” from the menu and print (to paper or a file, such as .PDF) the preview document.
This gives a reference to call on at a later date if required.