363-206-295
Applications
2-8
Issue 1
December 1997
If fiber exhaustion is a problem, the 2000 Product Family provides several
alternatives for the network planners to pick from, depending on the specifics of
their application. If fiber is available, multiple DDM-2000 OC-3 Multiplexer rings
can be installed; or if fiber is unavailable or if the administrative ease of a single
ring is desired, a single DDM-2000 OC-12 Multiplexer ring can be installed. Fiber
exhaustion often occurs when customer demand for voice, DS1, and DS3
services grows to fill the OC-3 ring's capacity. If the growth has come from only
one or two sites and there is spare fiber in place, these high demand sites may be
cut to a new OC-3 ring without interrupting service. Alternatively, driven by fiber
exhaustion or evolution to customer DS3 services, the OC-3 ring may be
upgraded in service to an OC-12 ring. In this configuration (Figure 2-4),
DDM-2000 OC-3 Multiplexer equipment is co-located with a DDM-2000 OC-12
Multiplexer shelf to provide a unified VT1.5 path switched ring node with an OC-12
high-speed interface.
Figure 2-4.
OC-3 Ring with OC-12 Ring Transport
OC-12
DDM-2000
OC-12
DDM-2000
OC-12
DDM-2000
OC-12
OC-12
OC-12
OC-12
OC-3
OC-3
DDM-2000
OC-3
0 X 1
Network
Interface
DS1, DS3, EC-1
Network
Interface
DDM-2000
OC-3
DS1, DS3, EC-1
0 X 1
0 X 1
Network
Interface
DS1, DS3, EC-1
Customer
Premises
Customer Premises
Customer Premises
DS1, EC-1, OC-3, OC-3c
DDM-2000
OC-3
Access Provider Network
OC-3
CO
RT
RT
RT
DDM-2000
OC-3/OC-12
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 ...