363-206-295
Technical Specifications
10-30
Issue 1
December 1997
Equipment Indicators
1
0
A red LED FAULT indicator is provided on all circuit packs. A green LED ACTIVE
indicator is provided on all 1x1 protected circuit packs to indicate which circuit
packs are actively carrying traffic.
Office Alarms
1
0
The office alarms interface is a set of discrete relays that control office audible and
visual alarms. Separate relays handle CR, MJ, and MN alarms. Each contact
closure is rated at 1 A, 60 V, maximum. The CR and MJ alarms can be wire-
ORed. The CR alarm relays are fail-safe against unprotected power failures.
User-Definable Miscellaneous Discretes—
Environmental Alarms and Controls
1
0
The user-definable miscellaneous discrete environmental alarm and control
interface allows the DDM-2000 OC-12 Multiplexers to monitor and control
equipment at the local site. Twenty-one alarm or status environmental inputs can
monitor environmental conditions (for example, open door, high temperature);
these inputs are activated by contact closures. The 15th environmental alarm or
status input is provided to monitor the condition of the power shelf and fans; this
closure is activated by
−
48 V DC. Four environmental control outputs are provided
to control external equipment (for example, pumps or generators). The
miscellaneous discrete outputs (control outputs, alarm/status outputs) tolerate
−
60 V maximum open circuit voltage and 35 mA maximum current. Transient
voltages up to
−
135 V are tolerated for up to 1 ms. The miscellaneous discrete
inputs (control inputs at a CO) provide
−
48 V nominal (
−
60 V maximum) open
circuit voltage and 2 mA maximum current. The miscellaneous discrete output
closures generated by the optoisolator require external voltage and ground to
operate.
The 21 alarm or status inputs can be reported through a TL1/X.25 interface.
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 ...