100baset ip daughterboards – Nortel Networks Circuit Card 311 User Manual
Page 1020
1020
NTDK20 Small System Controller card
processes temporary automated routines and user-programmed commands
while the system is running. The DRAM on the SSC card stores operating
system files, user files, overlay data, patch codes, and the active copy of the
customer database.
The NTDK20 SSC card’s Flash daughterboard is the NTTK25. It performs
most of the system software storage and data processing.
NTTK25 daughterboard
The NTTK25 is a 48 MB daughterboard comprised of Flash ROM and
Primary Flash drive. It is required in the Call Server and Media Gateway.
The Flash ROM holds 32 MB of ROM memory, comprising operating system
data and overlay programs. Flash ROM is expandable using an expansion
flash daughterboard.
The Primary Flash drive contains 16 MB of storage space. Most of the data
storage is allocated to the Primary Flash drive – the main storage area of
customer configured data.
Other system data such as the Secure Storage Area (SSA) also resides in
the Flash drive. The SSA holds data that must survive power interruptions.
The Boot ROM is a 2 MB storage device located on the NTDK20 SSC card.
The Boot ROM contains the boot code, system data, patch data, and the
backup copy of the Primary Flash drive’s customer database.
100BaseT IP daughterboards
A 100BaseT IP Daughterboard mounted on the NTDK20 SSC card enables
the connection of the Call Server to a Media Gateway. See
"NTDK20 SSC card and expansion daughterboard in the Call Server" (page
1019)
Each daughterboard increases the number of conference channels by 32.
The maximum number of conference ports is 96.
provides the ports, cables, and connection
data on the IP daughterboards.
The NTDK83 (dual-port) 100BaseT IP daughterboard mounts on the
NTDK20 SSC card in the Call Server. It provides connectivity to two Media
Gateways.
Note: With a point-to-point connection, the Media Gateway must be
within 100 meters of the Call Server.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.