User's Guide NETWORK DEVICE 326X V.34, V.34-SDC, and V.32bis

Country-Specific Information C-43
Country-Specific
Information
Using the Modulus Backplane’s Busy Out Feature
This section applies to the following countries, which use the “Universal
International” (UI) Modulus enclosure backplane:
• Australia
• Belgium
• Canada
•Denmark
• Finland
• Ireland
• Israel
•Norway
•Sweden
•Switzerland
• U. S. A.
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:
• 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)
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.