Subchannel - Proxim 7550 User Manual

By default, the Harmony System will automatically provide a Channel assignment to a
Harmony OpenAir Access Point.
The Harmony System will assign Channel 1 through 15 to the first 15 Access Points.
The Harmony System will assign Channel 1 to the 16th Access Point, Channel 2 to the
17th Access Point, and so on.
If necessary, you may manually configure the Channel assignment of an OpenAir
Access Point using the Harmony System's Web browser interface. If you have more
than 15 Access Points on the network, make sure that units that share the same Channel
are as far away from each other as possible, based on the results of your site survey of
the facility. This will minimize interference between the two radios.
Note:
Proxim recommends that you manually assign Channels if you have more
than 15 Harmony OpenAir Access Points on one network.

Subchannel

The Subchannel is a software code that is appended to each radio packet. It does not
affect the frequency hopping sequence like a Channel does. Use a Subchannel if you
need more than 15 Access Points in the same coverage area and, therefore, all the
Channels are used.
For example, you can use Channel 1, Subchannel 1 for Access Point A and Channel 1,
Subchannel 2 for Access Point B. The mobile clients in cell A will not communicate
with the Access Point or clients in cell B and vice versa. However, both cells are still
sharing the same 1.6 Mbps pipe since they are both using Channel 1.
By default, the Harmony System will assign Subchannel 1 to the first 15 Access Points,
Subchannel 2 to the next 15 Access Points, and so on.
There are 15 Subchannels, designated 1 through 15. If necessary, you may manually
configure the Subchannel for each Access Point using the Harmony System's Web
browser interface.
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