Nortel Networks Option 11C Mini manual Reserve power supply, Circuit cards

Chapter 2 — Identifying the Option 11C Mini equipment Page 35 of 332

Reserve power supply

You can use an Uninterruptible Power Supply (UPS) to 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. Refer to “Power consumption worksheets for the Option 11C Mini system” on page 64. This section contains worksheets to help you determine the power draw for the UPS.

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 147.

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 programmed 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 0 of the Main Chassis.

Security Device

The MSC card is equipped with a socket. This socket holds the Security Device. Each new Option 11C Mini system comes with a Security Device. 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.

Option 11C Mini Planning and Installation Guide