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Using the Modulus Backplane's Busy Out Feature
This section applies to the following countries, which use the "Universal
International" (UI) Modulus enclosure backplane:
This section also is of interest to users in Hong Kong and the United Kingdom.
Make Busy versions of Modulus 9 and Modulus 21 backplanes (which install in a
Modulus enclosure with card modems) come equipped with the Busy Out feature.
This feature causes a Busy Out modem to "appear busy" to the central office when:
Busy Out is intended for use with Model 3262 and 3267 dial modems. In some coun-
tries, it is also used in dial-restoral mode on Model 3263 and 3268 leased modems.
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• Australia
• Belgium
• Canada
• Denmark
• Finland
• Ireland
• Israel
• Norway
• Sweden
• Switzerland
• U. S. A.
• Power is disconnected from the Modulus enclosure
• The modem card is not present in its slot
• Busy Out=ON (the option is set through the front panel menu, the AT ACU, or
a network manager)
Country-Specific Information C-43
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