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Page 218 of 544
553-3011-100
Standard 14.00
System Controller cards
This maintains the requirement of a single keycode for each Option 11C
system with survivable IP expansion cabinets. Refer to Table 22, "NTDK20
SSC card and Expansion Daughterboard," on page 215 for the location of the
device.
The main objectives of this security scheme are
1
to allow the system to operate as a single system when all links are up.
2
to allow the Survivable IP Expansion cabinet to continue operating with
its existing configuration in the event of a failure of the Main, or of the
link to the Main.
3
to prevent users from configuring or using more TNs or features than
have been authorized.
The IP expansion cabinet security device will provide the following
capabilities at the expansion cabinet:
•
System software can be installed but no calls will be processed or
features activated until communication with a main has been established
and a match between the security id of the main and the IP Expansion
cabinet has been confirmed.
•
System software can be upgraded.
•
Local data dump is not permitted, as well as all Overlay 43 and
Overlay 143 commands.
SDI ports
The NTDK20 SSC card contains three SDI ports used to connect on-site
terminals or remote terminals through a modem. The default settings on the
ports are as follows:
January 2002
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