363-206-285
Technical Specifications
10-64 Issue 3 June 2001
TL1/X.25 Interface 10
The DDM-2000 Multiplexer supports a TL1/X.25 interface for communication
between local and remote DDM-2000s and alarm surveillance and provisioning
operations systems (OS) such as Telcordia Technologies' Network Monitoring and
Analysis (NMA) and Operations Systems/Intelligent Network Element (OPS/INE)
OSs. The DDM-2000 OC-3 Multiplexer TL1/X.25 interface is based on Telcordia
Technologies TR-TSY-000833, Issue 5. In Releases 8.0, 9.0 and later, the DDM-
2000 OC-3 Multiplexer supports up to nine X.25 permanent virtual circuits (PVCs)
and up to nine switched virtual circuits (SVCs) assigned by default as shown in
Table 10-25. The user may assign a maximum of nine VCs using any combination
of PVCs and SVCs.
All VCs support command/response messages (except PVC #2 prior to Release
6.0, is limited to autonomous maintenance messages only). The autonomous
maintenance messages are all TL1 autonomous messages except REPT
DBCHG.
Table 10-25. TL1/X.25 Interface — Default VC Assignments
PVC
ID
SVC
ID
Logical
Group #
Logical
Channel # Use
1 0 1 User Definable ‡
2 0 2 Autonomous Maintenance Messages,
(User Definable ‡)
3* 0 3 Autonomous Provisioning Messages (REPT DBCHG),
(User Definable ‡)
1†0 16 Autonomous Maintenance and Provisioning Messages §,
(User Definable ‡)
2 ‡ 0 17 User Definable ‡
3 ‡ 0 18 User Definable ‡
4 ‡ 0 19 User Definable ‡
5 ‡ 0 20 User Definable ‡
6 ‡ 0 21 User Definable ‡
* Release 6.1 (linear), 5.1 (rings), and later
†Release 6.2 (linear), 7.1 (rings), and later
‡ Release 8.0 (linear), 9.0 (rings), and later
§ Release 6.2 (linear), 7.1 and 7.2 (rings) only.
To Next Page
Loading...
Need help?
General
