363-206-295
System Introduction
1-4
Issue 1
December 1997
Channel state provisioning is a capability provided on DDM-2000 OC-12
Multiplexers that suppresses reporting of alarms and events by supporting
multiple states (automatic [AUTO], in-service [IS], and not monitored [NMON]) for
STS-1 channels.
Release 2.3 provides OC-3 line state provisioning in addition to the features of
Release 2.2. Line state provisioning allows in-service and not-monitored states of
OC-3 line level alarms on Function Unit OLIUs. The alarms can be squelched and
removed from the alarm report. Used in one-way OC-3c transport on OC-12 video
applications.
Release 3.0 is an OC-12 STS-1 path switched ring release featuring EC-1 dual
ring interworking (DRI) with drop and continue and automatic synchronization
reconfiguration. New applications include OC-12 path switched ring, DDM-2000
OC-12/DACS IV-2000 transmission interworking, and DRI interworking via an
EC-1 interface. New features include DS3 low-speed interface on an OC-12 path
switched ring, EC-1 low-speed interface with the BBG12 3STS1E circuit pack,
two-fiber path switched ring, ten network elements’ maximum network from a
single maintenance point, STS-1 drop and continue, nonrevertive protection
switching, automatic ring synchronization reconfiguration, OSI 7-layer protocol
stack on the DCC in a ring, DS1 timing outputs for timing distribution,
synchronization messaging, STS-1 signal degrade, manual STS path switching,
enhanced security, remote and remote software download. The new BCP3 time
slot interchange (TSI FLEX) circuit pack provides flexible STS-1 bandwidth
management across the entire OC-12.
Release 3.1 new applications and features include interworking with
SLC-2000
Releases 3.1 and 3.2 ring networks, OC-12 STS-1/VT1.5 path switched ring (ring
0x1 low-speed interface) optical interconnections between DDM-2000 OC-3 and
OC-12 ring shelves (OC-3/IS-3), enhanced DS3 PM, channel state provisioning,
OC-3 ring to OC-12 ring in-service upgrades, low-speed EC-1 loopbacks, and
additional TL1 commands and enhancements.
The OC-12 STS-1/VT1.5 path switched ring (ring 0x1 low-speed interface) OC-3/
IS-3 interface offers a significant advantage over the 1+1 protected OC-3/IS-3
interface for VT1.5 path switched ring applications. Ring (0x1) low-speed interface
means two service lines (no protection lines) are used between the OC-12
Multiplexer ring and the OC-3 Multiplexer ring.
Ring 0x1 low-speed interfaces provide full VT protection switching via an OC-12
ring, bandwidth conservation, and VT bandwidth management on the OC-12 ring.
Enhanced DS3 PM provides a collection (from the fiber or high-speed interface) of
the DS3 parity-bit (P-Bit) and frame and multiframe (F&M) bit errored seconds,
severely errored seconds, and unavailable seconds to the already provided
coding violations and severely errored frame seconds. The feature is mainly used
for DS3 tariff verification.
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 ...