363-206-305
Operations Interfaces
Issue 3 June 2000
6-15
until DDM-2000 OC-3 Release 13.0 and later, and OC-12 Release 7.0. For DDM-
2000 FiberReach 3.0 and later, Tellabs TITAN 5500/S R5.0 DCS, or other-vendor 
NEs that adhere to Telcordia Technologies GR-253, can be the TL1/X.25 GNE. 
DDM-2000 FiberReach can not be a TL1/X.25 GNE itself. 
Autonomous and command/response messages are supported. Detailed 
information about the DDM-2000 OC-3 or OC-12 X.25 interface and detailed 
information about the input and output parameters for TL1 messages is provided 
in 824-102-151, 
DDM-2000 Multiplexers Operations Systems Engineering Guide
. 
ITM SNC
6
ITM SNC is an element management system (EMS) that supports SONET NEs 
such as the Lucent Technologies’ DDM-2000, FT-2000, 
SLC
®
-2000, and the 
Fujitsu
®
 Lightwave Multiplexer (FLM). ITM SNC provides fault, provisioning, 
configuration, and security management functions via a Graphical User Interface 
(GUI). Through these functions, ITM SNC is able to support TL1/X.25 
communication multiplexing or concentration, to provide network security, and to 
record all database changes. ITM SNC also provides a cut-through capability, 
allowing the ITM SNC user to access an NE through its native (TL1) command 
set. 
ITM SNC operates as an enhanced graphical tool and as a general configuration 
management aid. It provides NE, port, cross-connection, and path provisioning, 
as well as flow through from provisioning OSs to NEs. ITM SNC also provides fault 
management through subnetwork alarm and event pre-processing prior to 
sending fault information to a network surveillance system such as Bellcore’s 
Network Monitoring and Analysis-Facility (NMA-F).