363-206-295
System Introduction
Issue 1
December 1997
1-3
DDM-2000 OC-12 Multiplexer
Releases
1
Release Descriptions
1
The following paragraphs provide brief descriptions of the DDM-2000 OC-12
Multiplexer releases:
Release 1.0 and later features include OC-12 point-to-point with DS3 low-speed
interfaces, OC-12 hubbing with OC-3 extensions, and OC-3/OC-12 interworking
using the 21D optical line interface unit (OLIU). The TL1/X.25 message-based
interface to Bellcore's Network Monitoring and Analysis (NMA) operations system
feature comes as part of the controller hardware and separately ordered software
required with Release 1.1 and later equipment. Hardware features include the
21D OLIU, which provides a short-reach multimode proprietary optical interface
(IS-3) between the OC-3 and OC-12 shelves and the BBF2B TGS circuit pack,
which provides DS1 timing outputs. Release 1.0 includes a security feature that
offers security against unauthorized access to the CIT system functions. Logins,
passwords, and user categories are provided. Security can be enabled or
disabled.
Release 2.0 new features include OC-3/OC-12 interworking using the open
systems interconnection (OSI) 7-layer protocol stack over the data
communications channel (DCC). The OSI 7-layer protocol stack refers to the OSI
reference model, a logical structure for network operations standardized by the
International Standards Organization (ISO). Release 2.0 also includes optical
carrier level 3 concatenated (OC-3c) transport. This OC-3c transport feature can
be used to interface with broadband terminals using 21D or 21G OLIUs.
SONET synchronization messaging is used to communicate the quality of
network timing, internal timing status, and timing states throughout a subnetwork.
The OC-12 23H/23H-U OLIU provides 1550 nm optics for long reach (100 km)
central office applications.
Release 2.1 new applications include DDM-2000 OC-12/DACS IV-2000
transmission interworking with an EC-1 interface, DDM-2000 OC-12/FT-2000
OC-48 Lightwave System transmission interworking with an EC-1 interface, and
OC-12 linear extensions from OC-3 rings. New features include an EC-1 interface
with a new BBG12 3STS1E low-speed interface circuit pack, TL1 interface to
Bellcore's Operations Systems/Intelligent Network Elements (OPS/INE) Release
1.7, and additional TL1 messages to support provisioning, maintenance, testing,
performance monitoring, and security functions.
Release 2.2 new applications and features include interworking with
SLC-2000
Release 3.0, channel state provisioning, and additional TL1 commands and
enhancements.
Содержание DDM-2000 OC-12
Страница 1: ...363 206 295 Issue 1 December 1997 DDM 2000 OC 12 Multiplexer Release 7 0 User Service Manual Volume I ...
Страница 37: ...Tables xxxviii Issue 1 December 1997 A A SONET Overview A 1 SONET Payloads A 18 A 2 SONET Transport Rates A 19 ...
Страница 506: ...INS PROG 8 of 8 Page INS PROG COMMANDS RELATED rtrv eqpt rtrv ne OC 12 DDM 2000 1997 December 1 Issue 11 89 ...
Страница 528: ...RTRV ATTR ALM 2 of 2 Page RTRV ATTR ALM COMMANDS RELATED set attr alm OC 12 DDM 2000 1997 December 1 Issue 11 111 ...
Страница 565: ...RTRV OC3 3 of 3 Page RTRV OC3 COMMANDS RELATED rtrv sync 11 148 1997 December 1 Issue OC 12 DDM 2000 ...
Страница 664: ...SET FEAT 3 of 3 Page SET FEAT COMMANDS RELATED rtrv feat OC 12 DDM 2000 1997 December 1 Issue 11 247 ...
Страница 766: ... Ctl T TOGGLE 2 of 2 Page Ctl T TOGGLE COMMANDS RELATED logout rlgn OC 12 DDM 2000 1997 December 1 Issue 11 349 ...
Страница 847: ...Multiplexer OC 12 DDM 2000 7 Release TARP TOP Manual User Service II Volume 363 206 295 1 Issue 1997 December ...
Страница 867: ...363 206 295 TOP Maintenance and Operation BLANK LEFT INTENTIONALLY PAGE THIS 12 1997 December 1 Issue ...
Страница 1145: ...Order Circuit 363 206 295 NTP 029 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1146: ...Order Circuit 363 206 295 NTP 030 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1182: ...Turnup System 363 206 295 NTP 033 1 of 1 Page 1997 December 1 Issue Unused LISTED ORDER IN BELOW ITEMS DO TO GO DETAILS FOR ...
Страница 1243: ...Clearing Trouble 363 206 295 TAP 107 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1393: ...363 206 295 DLP 513 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1394: ...363 206 295 DLP 514 1 of 1 Page 1997 December 1 Issue Unused ...
Страница 1456: ...363 206 295 DLP 523 7 of 7 Page 1997 December 1 Issue OC 12 via Access Broadcast Video for Cross connections of Example 4 Figure ...
Страница 1465: ...DLP 525 363 206 295 1997 December 1 Issue 6 of 2 Page Schematic Ring Virtual ATM Sample 1 Figure ...
Страница 1469: ...DLP 525 363 206 295 1997 December 1 Issue 6 of 6 Page Ring Virtual ATM OC 12 DDM 2000 for Cross connections of Example 4 Figure ...
Страница 1565: ...363 206 295 DLP 543 6 of 5 Page 1997 December 1 Issue Network Broadcast Video of Test Transmission 2 Figure ...
Страница 1566: ...DLP 543 363 206 295 1997 December 1 Issue 6 of 6 Page Network Ring Virtual ATM of Test Transmission 3 Figure ...