Nortel Enterprise 1000 Reference Manual page 21

PCMCIA interface
The NTDK20FA SSC card has a PCMCIA interface through a socket located
on its faceplate. The PCMCIA socket can accommodate a Software Delivery
card used for software upgrading and as backup media.
Security device for the Succession CSE 1000
The SSC card in each Media Gateway must contain a NTDK57DA Security
device which is keyed to match the NTDK57AA Security device on the Call
Server.
This maintains the requirement of a single keycode for each Succession CSE
1000 system. Refer to Figure 5 on page 20 for the location of the device.
The main objectives of this security scheme are to:
• allow the system to operate as a single system when all links are up.
• allow the Media Gateway to continue operating with its existing
configuration in the event of a failure of the Succession CSE 1000 Call
Server, or the failure of the link to the Succession CSE 1000 Call Server
from the Media Gateway.
• prevent users from configuring or using unauthorized TNs or features.
The Media Gateway security device provides the following capabilities for
the Media Gateway:
• System software can be installed but no calls can be processed or features
activated until communication with the Succession CSE 1000 Call
Server has been established and a match between the security ID of the
Succession CSE 1000 Call Server and the Media Gateway has been
confirmed.
• System software can be upgraded.
• Local data dump, LD 43 commands, and LD 143 commands are not
permitted.
Succession Communication Server for Enterprise 1000 Circuit Card Reference Guide
Succession System Controller card Page 21 of 236