Meridian Nortel 1 Option 11C Technical Reference Manual page 223

Figure 24
NTDK97 MSC card
PCMCIA interface
The NTDK97 MSC card has a PCMCIA interface socket located on its
faceplate. The PCMCIA socket can accommodate a Software Delivery card
used for software upgrading and as backup media.
SDI ports
The NTDK97 MSC 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:
System Controller cards
Security Device
PCMCIA Drive
Option 11C and 11C Mini
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