Circuit Cards - Nortel Meridian 1 Planning And Installation Manual

Page 16 of 590 Chapter 2 — Identifying the Option 11C Mini equipment
Reserve power supply
An Uninterruptible Power Supply (UPS) can provide a backup power supply
for the NTDK91 and the NTDK92 chassis. A UPS provides a continuous AC
power supply. Install the UPS unit according to the manufacturer's
instructions. Worksheets to help determine the power draw for the UPS are
included in the Option 11C Technical Reference Guide (553-3011-100)

Circuit cards

The Option 11C Mini introduces the NTDK97 Mini System Controller
(MSC) card and the NTDK16 48-port Digital Line Card. This section
provides a short overview of these two cards. For more information about
these cards and the other circuit cards supported on the Option 11C Mini,
refer to "Chapter 12 — Installing the circuit cards" on page 125.
NTDK97 Mini System Controller card
The NTDK97 Mini System Controller (MSC) card is based on the
Option 11C NTDK20 Small System Controller (SSC) card. The MSC card
includes a Central Processing Unit (CPU) which handles call processing for
the system. The MSC card also includes an Ethernet controller, storage for
system and customer data, and system memory.
The MSC card stores system and customer data. This card is preprogrammed
with system software before it is shipped to the customer. Additional memory
on the MSC card temporarily stores and processes automated routines and
user-programmed commands. The MSC card also keeps a copy of customer
files in the event of data loss on the Backup Flash Drive.
You must install the MSC card in Slot 00 of the Main Chassis.
Security Device
The MSC card is equipped with a socket. This socket holds the Security
Device. The Security Device is shipped with each new Option 11C Mini
system. When the MSC card is shipped, the Security Device is normally not
attached to the socket on the MSC card. You must attach the Security Device
to the MSC card during initial installation.
PCMCIA interface
The NTDK97 MSC card has a 2-slot PCMCIA interface socket located on its
faceplate. You can insert a Software Delivery card into the socket. Use the
Software Delivery card for software upgrades on an existing Option 11C
Mini system. You can also use this socket for creating an external backup
copy of the customer database.
553-3021-209 Standard 1.00 July 1999