Nortel-networks Circuit Card Manual do Utilizador Página 819

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NTDK20 Small System Controller card Page 819 of 906
Circuit Card Description and Installation
Security device
The NTDK20 SSC card in each MG 1000S must contain a NTDK57DA
Security device, a remote dongle (NT_Rem) which is keyed to match the
NTDK57AA Security device on the Call Server and a standard dongle
(NT_STD). This maintains the requirement of a single keycode for each
system. Refer to Figure 170 on page 813 for the location of the device.
This security scheme provides the following:
enables the system to operate as a single system when all links are up.
enables the MG 1000S to continue operating with its existing
configuration in the event of a failure of the Call Server, or the failure of
the link to the Call Server from the MG 1000S.
prevents users from configuring or using unauthorized TNs or features.
The MG 1000S security device provides the following capabilities for the
MG 1000S:
System software can be installed but no calls can be processed or features
activated until communication with the Call Server has been established
and a match between the security ID of the Call Server and the
MG 1000S has been confirmed.
System software can be upgraded.
Note: Local data dump, LD 43 commands, and LD 143 commands are
not permitted.
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