User's Manual

Summit Manufacturing Utility (SMU) Guide 05/13/09

Summit Data Communications, Inc.

6 CONFIDENTIAL

The table below shows the channels and the nominal maximum transmit power values that are supported

in each regulatory domain with V2.01:

2.4 GHz 5 GHz (AG radio only)

Domain

Channels Tx (.11b) Channels Tx

FCC 1-11 18 dBm UNII-1 and UNII-3 14 dBm

ETSI 1-13 18 dBm UNII-1, UNII-2, and Intermediate 14 dBm

TELEC 1-14 17 dBm UNII-1 and UNII-2, plus

additional channels: 34, 38, 42, 46

14 dBm

WorldWide

1-11 17 dBm UNII-1 14 dBm

V2.01 of Summit software supports a performance-optimized version of IEEE 802.11d, the ratified

standard for the operation of a wireless LAN client radio in multiple regulatory domains. This 802.11d

support ensures that a Summit radio that is programmed for the WorldWide regulatory domain will adjust

its 2.4 GHz and 5 GHz channel sets and maximum transmit power settings to match those for the country

specified in the Country information element transmitted in an access point’s (AP’s) association response.

To take advantage of 802.11d support in Summit software and ensure optimal performance, an

organization that uses devices with Summit radios must make sure that:

• Every AP on the wireless LAN supports 802.11d, specifies the correct Country information element,

and broadcasts its SSIDs

• Every Summit radio is programmed for a regulatory domain of WorldWide (by the device

manufacturer or other organization that uses the Summit Manufacturing Utility to program Summit

radios)

A Summit radio that is programmed for a regulatory domain of FCC, ETSI, or TELEC will ignore the

Country information elements from APs.

A Summit radio uses 802.11d only when it tries to associate on an SSID for the first time. During the

initial association process, if the AP provides a Country information element, then the radio configures its

channel set and maximum transmit power for that country. The radio assumes that all APs with the same

SSID have the same 802.11d country code; as a result, the radio effectively ignores the country code

when roaming from one AP to another. The radio will continue to use the channel set and maximum

transmit power for a country until the radio disconnects from the WLAN (with that SSID).

V2.01 of Summit software also supports a “world mode” that is independent of 802.11d. When a Summit

radio programmed for the WorldWide regulatory domain is within range of APs that are not configured

for 802.11d, the radio identifies the channels that the APs support and automatically adapts its channel set

to the channels supported by the APs.

2.2.4 Bluetooth Coexistence

When Bluetooth coexistence is on, pins 39 and 45 of the radio are used for two-wire Bluetooth

coexistence handshaking. When Bluetooth coexistence is off, the handshaking lines are not used. The

default value is “Off”.

When a Summit radio programmed for the WorldWide domain associates to an AP that is configured for 802.11d, the radio will

adapt its channels and maximum transmit power to those for the country specified by the AP. See the explanation below the

table.