363-206-295
Glossary
Issue 1
December 1997
GL-7
Dual 0x1 Cross-Connection
In a single-homed application, the DDM-2000 OC-3/OC-12 Multiplexer uses a dual 0x1
cross-connection to map the VT1.5 channels between the DDM-2000 FiberReach OC-1
and the DDM-2000 OC-3/OC-12 rings. This dual 0x1 architecture means that the VT1.5
path switching is only in the DDM-2000 FiberReach and not in the host DDM-2000.
Individual DS1 signals within an STS-1 can therefore be dropped to DDM-2000 OC-3
shelves at several nodes around the ring. See Single 0x1.
Dual Homing
In DDM-2000 FiberReach, a network topology in which two OC-3 shelves serve as
DDM-2000 FiberReach Multiplexer hosts supporting up to twelve OC-1 rings. Each
DDM-2000 FiberReach Multiplexer ring is interconnected between the two separate
hosts. Two
SLC-2000 Access Systems serving as DDM-2000 FiberReach hosts can
support up to four OC-1 rings. See Single Homing."
E
EC-1, EC-n
Electrical Carrier — The basic logical building block signal with a rate of 51.840 Mb/s for
an EC-1 signal and a rate of n times 51.840 Mb/s for an EC-n signal. An EC-1 signal can
be built in two ways: A DS1 can be mapped into a VT1.5 signal and 28 VT1.5 signals
multiplexed into an EC-1 (VT1.5 based EC-1), or a DS3 can be mapped directly into an
EC-1 (DS3 based EC-1).
ECI
Equipment Catalog Item — The bar code number on the faceplate of each circuit pack
used by some inventory systems.
EEPROM
Electrically Erasable Programmable Read-Only Memory
EIA
Electronic Industries Association
EMC
Electromagnetic Compatibility
EMI
Electromagnetic Interference
EOOF
Excessive Out of Frame
EPROM
Erasable Programmable Read-Only Memory
EQ
Equipped (memory administrative state)
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 ...