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Table Of Contents
Mechanics and Other Characteristics
7.1.4 System Controller Module, SYSCONT-SD128-RJ45
7.1.5 Alarm and Fan module, FAN-ALARM
Mechanics and Other Characteristics
7.1 Mechanical Parameters
7.1.1 Chassis
The equipment is provided as a sub-rack suitable for mounting within a 19-inch equipment cabinet. The height of the unit is 43.6 mm (1U =44.45mm).
It is possible to mount one single unit including power supply, cable terminating and fibre handling facilities, within an enclosure with external dimensions less than:
The depth of the sub-rack is 240 mm. The total weight of the ONS 15305 fully equipped does not exceed 5Kg. Different mounting brackets are available for both 19" and ETSI cabinets/racks (as specified in ETS 300 119, IEC 60917 and IEC 60297). The thermal design of the unit meets the requirements of EN/IEC 60950.
7.1.2 Service Modules
The service modules in the ONS 15305 have the following physical dimensions:
7.1.3 Power Module, DC Power
The power module in the ONS 15305 have the following physical dimensions
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7.1.4 System Controller Module, SYSCONT-SD128-RJ45
The system controller module in the ONS 15305 has the following physical dimension:
7.1.5 Alarm and Fan module, FAN-ALARM
The Alarm and fab module in the ONS 15305 has the following physical dimensions:
7.2 Reliability, MTBF
MTBF values according to:
Telcordia Technologies Special Report, SR-332, Issue 1, May 2001, but with the following correction:
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Based on experience, for all Telcordia standard values, a Correction Factor, CF=2 has been used to improve the reliability figures.
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7.3 Environmental Conditions
The equipment conforms to the requirement of EN 300 386 for EMC related specifications. The equipment is also compliant with the following standards:
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The equipment operates under all environmental conditions detailed in ETS 300 019-2-3 Class 3.2.
7.3.1 Health and Safety
The equipment meets the requirements in EN/IEC 60950 (CLASS III) and EN60825. The equipment meets the requirements in ETS 300 753 for acoustic noise.
7.3.2 Storage and Transport
The equipment meets the requirements in ETS 300 019, Class 1.2 and class 2.2. Supported storage temperature range : -40OC to +70OC.
7.4 Referenced Specifications
7.4.1 ITU-T Recommendations
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Single Mode Optical Fibre
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Vocabulary of Transmission and Multiplexing, and Pulse Code Modulation (PCM) Terms.
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Digital Hierarchy Bit Rates
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Physical/Electrical Characteristics of Hierarchical Digital Interfaces
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Synchronous Frame Structures at Primary and Secondary Hierarchical levels.
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Frame Alignment and Cyclic Redundancy Check (CRC) Procedures Relating to Basic Frame Structures Defined in Recommendation G.704
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Network node interface for the synchronous digital hierarchy (SDH)
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Characteristics of synchronous digital hierarchy (SDH) equipment functional blocks
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Synchronous digital hierarchy (SDH) management
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Definition and terminology for synchronization networks
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Timing characteristic of primary reference clocks
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Timing characteristics of slave clocks suitable for use as a node clocks in synchronization networks
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Timing characteristics of SDH equipment slave clocks (SEC)
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The control of jitter and wander within digital networks which are based on the 2048 kbit/s hierarchy
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The control of jitter and wander within digital networks which are based on the synchronous digital hierarchy (SDH)
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End-to-end error performance parameters and objectives for international, constant bit rate digital paths and connections.
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Transport of SDH elements on PDH networks - Frame and multiplexing structures
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Types and characteristics of SDH network protection architectures
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Optical interfaces for equipment and systems relating to the synchronous digital hierarchy
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Digital line systems based on the synchronous digital hierarchy for use on optical fibre cables
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Principles of maintenance Testing for Public Data Network using Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) test Loops
7.4.2 Cenelec Documents
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Specification for Limits and methods of Measurement of Radio Interference Characteristics of Information Technology Equipment
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Electromagnetic Compatibility Requirements for Information Technology Equipment (Previously EN 55101)
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Radiation Safety of Laser Products
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Safety of Information Technology Equipment Including Electrical Business Equipment
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Electromagnetic compatibility (EMC). Part 3: Limits; Section 2: Limits for harmonic current emissions (equipment input current Ј16 A per phase)
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Electromagnetic compatibility (EMC). Part 3: Limits; Section 3: Limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current Ј16 A
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Electromagnetic compatibility (EMC). Part 4: Testing and measurement techniques; Section 2: Electrostatic discharge immunity test. Basic EMC Publication
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Electromagnetic compatibility (EMC). Part 4: Testing and measurement techniques; Section 3: Radiated, radio-frequency, electromagnetic field immunity test
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Electromagnetic compatibility (EMC). Part 4: Testing and measurement techniques; Section 4: Electrical fast transient/burst immunity test. Basic EMC Publication
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Electromagnetic compatibility (EMC). Part 4: Testing and measurement techniques; Section 5: Surge immunity test
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Electromagnetic compatibility (EMC). Part 4: Testing and measurement techniques; Section 6: Conducted disturbances induced by radio-frequency fields
7.4.3 ETSI Documents
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Integrated Services Digital Network (ISDN); Primary rate user-network interface; Layer 1 specification and test principles
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Environmental engineering (EE); Environmental conditions and environmental tests for telecommunication equipment Part 2-1: Specification of environmental test; Storage
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Environmental engineering (EE); Environmental conditions and environmental tests for telecommunication equipment Part 2-2: Specification of environmental test; Transportation
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Environmental engineering (EE); Environmental conditions and environmental tests for telecommunication equipment Part 2-2: Specification of environmental test; Stationary use at weather protected locations
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Equipment engineering (EE): European telecommunication standard for equipment practice Part 4: Engineering requirements for subracks in miscellaneous racks and cabinets
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Transmission and multiplexing (TM); Synchronous digital hierarchy (SDH); Mulitiplexing structure
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Integrated Services Digital Network (ISDN); Access digital section for ISDN primary rate
ETS 300 253
Environmental engineering (EE): Earthing and bonding configuration inside telecommunication centres
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Electromagnetic compatibility and radio spectrum matters (ERM); Telecommunication network equipment; Electromagnetic compatibility (EMC) requirements
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Transmission and Multiplexing (TM);Generic functional requirements for Synchronous Digital Hierarchy (SDH) transmission equipment.Compliant to ETS 300 417 for relevant parts (i.e the functionality implemented can be considered as compliant).
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Equipment engineering (EE): Acoustic noise emitted by telecommunication equipment
7.4.4 IEC Documents
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Modular order for the development of Mechanical structures for electronic equipment practice
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Dimension of mechanical structures of the 482.6mm (19 in) series Part 3 Subracks and associated plug-in units
7.4.5 Bellcore Documents
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Reliability prediction procedure for electronic equipment
Posted: Fri Sep 14 10:36:37 PDT 2007
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