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Establishing the Network After Tracer SC+ Installation
If a Tracer SC+ is installed prior to establishing the Air-Fi network, the WCI that is installed on a Tracer
SC+ automatically becomes the network coordinator after power is applied to the Tracer SC. If multiple
WCIs are installed on a Tracer SC+, each WCI forms an independent network for which it is the
coordinator.
Follow this procedure:
1. Observe the yellow CRD LED on the WCI illuminate to identify the WCI wired to the Tracer SC as
the network coordinator (see “WCI LEDs and Buttons,” p. 60.)
2. Observe the yellow OPEN_NET LED illuminate on the coordinator WCI. This LED remains lit for 1
hour, indicating that the network is open to allow WCIs with matching addresses to join the network
for that duration. After each WCI joins, the 1 hour timer starts over.
Note: If the network closes because the timer has expired, you can open the network for an
additional hour by pressing the OPEN_NET button on the network coordinator WCI. To
extend time on a network that has not yet closed, press the OPEN_NET button on the
coordinator to close the network, then press it again to open the network for an additional
hour. As an alternative, you can use Tracer TU to open the network.
3. Observe the green NWK LED illuminate:
• On the coordinator WCI, indicating that it is a member of its own network.
• On each additional WCI as it joins the network.
Note: Typically, it takes about 10 minutes for a WCI to join the network. However, the time is
dependent on the distance between the WCIs in network as well as the size and type of
structures that may exist between them.
4. After the network is formed, press the OPEN_NET button on the coordinator to close the network if it
is still open (indicated by an illuminated OPEN_NET LED).
5. To enable and configure Tracer SC+ for the new wireless network, see Tracer SC+ Online Help and
the current edition of the Tracer SC System Controller Installation and Setup guide (BAS-SVX31).
Establishing the Network Prior to Tracer SC+ Installation or Without
Tracer SC+ Installation
If a Tracer SC+ has not been installed at the time that you are ready to establish the network or will
never be installed on the network, follow this procedure to establish the network.
Task 1: Activate Communication Among Existing WCIs
1. Choose a centrally located WCI that has been wired to a unit controller to become the network
coordinator.
Note: Record the location of this WCI if the network is to have a Tracer SC+ installed on it at a later
time. In that case, you will have to disband the network from the coordinator WCI so that the
WCI that has been installed on the Tracer SC+ can become the network coordinator and
establish a new network, as explained in detail in Task 2.
2. Press the START button for 5 seconds to establish the WCI as the coordinator and to open the
network for joining. The yellow CRD LED on the WCI illuminates to identify the WCI as the network
coordinator. (See “WCI LEDs and Buttons,” p. 60.)
3. Observe the yellow OPEN_NET LED illuminate on the coordinator WCI. This LED remains lit for 1
hour, indicating that the network is open to allow WCIs with matching addresses to join the network
for that duration. After each WCI joins, the 1 hour timer starts over.
Note: If the network closes because the timer has expired, you can open the network for an
additional hour by pressing the OPEN_NET button on the network coordinator WCI. To
extend time on a network that has not yet closed, press the OPEN_NET button on the
coordinator to close the network, then press it again to open the network for an additional
hour.
4. Observe the green NWK LED illuminate:
• On the coordinator WCI, indicating that it has joined its own network.
Establishing an Air-Fi® Network
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