363-206-295
Technical Specifications
10-22
Issue 1
December 1997
SONET Overhead Bytes
1
0
The only use of SONET overhead bytes for proprietary signaling is the K2 byte for synchronization
messaging. See Section 6, "System Planning and Engineering," of 363-206-200
DDM-2000 OC-3
and OC-12 Multiplexers Applications, Planning, and Ordering Guide, for more information on
synchronization messaging.
Performance
1
0
Wander/Jitter
1
0
■
For SONET optical interfaces, the maximum time interval error (MTIE) does not exceed 60
nanoseconds phase variation when timed with a wander-free reference.
■
Jitter transfer, tolerance, and generation requirements are met as specified in TR-253 and
TR-499.
■
The SONET interface meets the T1.101 OC-N output short term stability mask.
Signal Performance
1
0
■
For systems interfacing at the DS3 rate, the number of errored seconds, during a 2-hour,
one-way loopback test, is less than 72.
■
The BER is less than 10
-9
for DS3 rates. Burst error seconds are excluded.
■
The frequency of burst errored seconds, other than those caused by protection switching
induced by hard equipment failures, average less than four per day.
Synchronization
1
0
Synchronous Timing Generator (BBF2/BBF2B)
1
0
The TGS circuit pack meets the specifications of GR-253-CORE, SONET Transport Systems
Generic Criteria. The TGS circuit pack supports three timing modes:
■
External timing (phase-locked mode): Locked to external Stratum 3
(
±
4.6 ppm) or better DS1 reference.
■
Line-timing: Locked to recovered clock from an OC-N signal.
■
Free-running: Timing derived from high-stability temperature-compensated voltage-
controlled crystal oscillator (TCVCXO) with a long-term accuracy of
±
15 ppm (
−
40
°
C to
+75
°
C).
Holdover mode is entered on failure of external timing or line-timing reference, providing a
temperature stability of
±
8.8 ppm (
−
40
°
C to +75
°
C). 24-hour holdover stability will be better than
±
4.6 ppm.
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 ...