363-206-295
Technical Specifications
10-2
Issue 1
December 1997
Electrical Interfaces
1
0
The DDM-2000 OC-12 Multiplexer supports DS3 and EC-1 electrical low-speed
interfaces.
DS3 Low-Speed (BBG11/11B 3DS3)
1
0
■
Electrical Specification
The low-speed DS3 interface transmits/receives a standard electrical DS3
signal as specified in
ANSI T1.102-1993, Section 5 (44.736 Mb/s rate,
DSX-3 interconnect specification, bipolar 3-zero substitution [B3ZS]
encoding). However, the signal does not have to contain a standard DS3
frame.
Line build-out is provisionable as follows:
— 734A/D: Up to 450 ft.
— Mini-Coax (KS-19224, L2): 0 to 150 ft.
— 735A: Up to 250 ft.
■
Format Specification
The DS3 low-speed interface provides clear channel (CC) transport of any
DSX-3 compatible signal (M13 mode, framed CC, unframed CC). Thus,
there are no format requirements on this interface.
■
Alarm Thresholding
The following parameters are monitored at the DS3 interface to the DSX-3:
— Loss of signal (LOS)
— Line coding violations (CV-L).
The alarm level for each of the monitored parameters can be provisioned to
CR, MJ, MN or status. B3ZS coding violation failure threshold is user
settable to 10
-3
or 10
-6
BER.
■
Performance Monitoring (PM) (see Table 10-14)
— DS3 Parity Errors (P-bits)
DDM-2000 OC-12 Multiplexers provide for DS3 P-bit violation
monitoring and removal (VMR) based on the provisioning mode of
the DS3 low-speed interface. Table 10-2 defines P-bit monitoring
and correction actions in each of the DS3 modes.
— Severely Errored Frame Seconds (SEFS)
DDM-2000 OC-12 Multiplexers count the number of seconds during
which an out-of-frame (OOF) condition exists for DS3 signals
received from the fiber.
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 ...
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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 ...
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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 ...