Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 System Description Manual

							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Site Requirements 
41 Environmental Considerations 
Cross-Connect Field
The cross-connect field equipment is located a specified distance from the DEFINITY 
cabinets and must meet specific requirements. An optional cross-connect field can be 
installed in the CMC right panel.
For new installations, Lucent Technologies personnel may install the cross-connect field. 
For more details about the cross-connect field and other site requirements, refer to the 
following documents: 
nDEFINITY Communications System Generic 1 and Generic 3 Main Distribution 
Field Design
, 555-230-630
nDEFINITY Communications System Generic 3 Planning and Configuration, 
555-230-601
NOTE:
The cross-connect field is wired to the external environment (trunks and lines 
outside of the building) by telephone company personnel.
Environmental Considerations
This section details the environmental considerations for the Multi-Carrier and 
Single-Carrier cabinets. For information about the DEFINITY Wireless Business System, 
refer to Appendix A.
Heat Dissipation
Typical heat dissipation Compact Single-Carrier, Single-Carrier, Multi-Carrier are shown 
in Ta b l e  5.  
						

							Site Requirements 
42 Environmental Considerations 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Altitude and Air Pressure
At altitudes above 5,000 feet (1,525 meters), the maximum short-term temperature limit 
reduces by 1o Fahrenheit for each 1,000 feet (305 meters) of elevation above 5,000 feet 
(1,525 meters). For example: at sea level, the maximum short-term temperature limit is 
120
o F (49o Celsius). At 10,000 feet (3,050 meters), the maximum short-term temperature 
limit is 115o F (46o C).
The normal operating air pressure range is: 9.4 to 15.2 psi (lbs. per sq. in.) (648 to 1,048 
millibars).
Temperature and Humidity
Install the equipment in a well-ventilated area. Maximum equipment performance is 
achieved at an ambient room temperature between 40 and 120o F (4o and 49o C) for 
short term operation (not more than 72 consecutive hours or 15 days in a year) and up to 
11 0
o F (43o C) for continuous operation.
The relative humidity range is 10 to 95% at up to 84
o F (29o C). Above this, maximum 
relative humidity decreases from 95% down to 32% at 120o F (49o C). Installations 
outside these limits may reduce system life or affect operation. The recommended 
temperature and humidity range is 65
o to 85o F (18o to 29o C) at 20 to 60% relative 
humidity. See Ta b l e  6.
Table 5. Typical Heat Dissipation for Various Cabinet Configurations
Cabinet typeNumber in 
StackWith 
Terminals? BTUs/Hour Gram-Cals./
Hour Watts
Compact 
Modular1 No 202 810 kg 234
Yes 378 1500 kg 439
Single-Carrier 1 Yes 438 1700 kg 499
4 (max.) Yes 1436 5700 kg 1672
Multi-Carrier 1 No 1058 4200 kg 1232
Yes 1662 6600 kg 1935
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							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Site Requirements 
43 Environmental Considerations 
Ta b l e  6 . Te m p e r a t u r e  a n d  R e l a t i v e  H u m i d i t y  
Room Temperature 
(Degrees Fahrenheit)Room Temperature 
(Degrees Celsius)  Relative Humidity (%)
40 to 84 4.4 to 28.8 10 to 95
86 30.0 10 to 89
88 31.1 10 to 83
90 32.2 10 to 78
92 33.3 10 to 73
94 34.4 10 to 69
96 35.6 10 to 65
98 36.7 10 to 61
100 37.8 10 to 58
102 38.9 10 to 54
104 40.0 10 to 51
106 41.1 10 to 48
108 42.2 10 to 45
110 43.3 10 to 43
112 44.4 10 to 40
114 45.6 10 to 38
116 46.7 10 to 36
118 47.8 10 to 34
120 48.9 10 to 32
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							Site Requirements 
44 Environmental Considerations 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Air Purity
The Compact Modular Cabinet, Single-Carrier and Multi-Carrier Cabinets contain an air 
filter to reduce particulates flowing through the equipment. Do not install the cabinet 
where the air may be contaminated by excessive dust, lint, carbon particles, paper fiber 
contaminants, or metallic contaminants. For example, do not install the cabinet near 
paper handling equipment such as copiers and high-speed printers, which introduce 
paper dust and print particles into the environment. Corrosive gases above the levels in 
Ta b l e  7 must be avoided.
Lighting
Lighting must be bright enough to allow personnel to perform their tasks. The 
recommended light intensity is 50 to 70 footcandles (538 to 753 lumens/m2) to meet the 
Occupational Safety and Health Act (OSHA) standards.
Radio Frequency Noise
Noise is introduced into the system through trunk or station cables, or both. 
Electromagnetic fields near the system control equipment may cause system noise. 
Place the system and cable runs in areas where high electromagnetic field strengths do 
not exist. Radio transmitters (AM or FM), television stations, induction heaters, motors 
with commutators of 0.25 horsepower (187 watts) or greater, and similar equipment are 
leading causes of interference. 
Table 7. Allowable Concentrations for Atmospheric Contaminants
Contaminant Average Concentration Not to Exceed
All particulate matter 185 micrograms/cubic meter
Nitrate 12 micrograms/cubic meter
Total hydrocarbons equivalent to methane 10 ppm (parts per million)
Sulphur dioxide 0.20 ppm (parts per million)
Oxides of nitrogen 0.30 ppm (parts per million)
Total oxidants equivalent to ozone 0.05 ppm (parts per million)
Hydrogen sulfide 0.10 ppm (parts per million) 
						

							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Site Requirements 
45 Environmental Considerations 
Small tools with universal motors are generally not a problem when they operate on 
separate power lines. Motors without commutators generally do not cause interference. 
Field strengths below 1.0 volt per meter are unlikely to cause interference. 
Measure weak fields with a tunable meter. Measure field strengths greater than 1.0 volt 
per meter with a broadband meter.
Estimate field strengths of radio transmitters by dividing the square root of the emitted 
power in kilowatts by the distance from the antenna in kilometers. This yields the 
approximate field strength in volts per meter and is relatively accurate for distances 
greater than about half a wavelength (150 meters for a frequency of 1000 kHz).
Acoustic Noise Generated by Cabinets
Acoustic noise levels are provided below. In all types of cabinet configurations, if the 
system cabinet door is open, there is an additional 1 dBA (decibels measured 
acoustically) of noise. Ta b l e  8 lists some typical noise figures for various cabinet 
combinations.
Table 8. Noise Generated by Cabinets
Cabinet Type Operating Condition Additional Noise Generated At Distance
Multi-Carrier Running, low-fan speed 51 dBA 5 ft. (1.5 m)
Running, high-fan 
speed56 dBA 5 ft. (1.5 m)
Tape drive reading data 2 dBA 5 ft. (1.5 m)
Tape drive fast-winding 1 dBA 5 ft. (1.5 m)
Single-Carrier 1 cabinet 48 dBA 5 ft. (1.5 m)
Single-Carrier 2 cabinets 2 dBA (50 dBA total) 5 ft. (1.5 m)
3 cabinets 4 dBA (52 dBA total) 5 ft. (1.5 m)
4 cabinets 5 dBA (53 dBA total) 5 ft. (1.5 m)
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							Site Requirements 
46 Environmental Considerations 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Electromagnetic Compatibility Standards
This product complies with and conforms to the following EMC standards (as applicable):
nLimits and Methods of Measurements of Radio Interference Characteristics of 
Information Technology Equipment, EN55022 (CISPR22), 1993
nEN50082-1, European Generic Immunity Standard
nFCC Part 15
nAustralia AS3548
NOTE:
The DEFINITY system conforms to Class A (industrial) equipment. Voice 
terminals meet Class B requirements.
nElectrostatic Discharge (ESD) IEC 1000-4-2
nRadiated radio frequency field IEC 1000-4-3
nElectrical Fast Transient IEC 1000-4-4
nLightning effects IEC 1000-4-5
nConducted radio frequency IEC 1000-4-6
nMains frequency magnetic field IEC 1000-4-8
nLow frequency mains disturbance IEC 1000-4-11
European Union Standards
Lucent Technologies Business Communications Systems declares that the DEFINITY 
equipment specified in this document bearing the “CE” mark conforms to the European 
Union Electromagnetic Compatibility Directives. 
The “CE” (Conformité Europeénne) mark indicates conformance to the European Union 
Electromagnetic Compatibility Directive (89/336/EEC), Low Voltage Directive 
(73/23/EEC), and Telecommunication Terminal Equipment (TTE) Directive (91/263/EEC) 
and with i-CTR3 Basic Rate Interface (BRI) and i-CTR4 Primary Rate Interface (PRI) as 
applicable. 
						

							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Site Requirements 
47 Cabinet Power Requirements 
The “CE” mark is applied to the following products:
nGlobal AC-powered Multicarrier Cabinet (MCC) with 25-Hz and 50-Hz ring 
generator
nDC-powered Multicarrier Cabinet (MCC) with 25-Hz ring generator
nAC-powered Enhanced Single-Carrier Cabinet (ESCC) with 25-Hz ring generator
nAC-powered Compact Single-Carrier Cabinet (CSCC) with 25-Hz ring generator
nAC-powered Compact Modular Cabinet (CMC) with 25-Hz and 50-Hz ring 
generator (for France)
nEnhanced DC Power System
Cabinet Power Requirements
This section describes cabinet AC- and DC-power source requirements.
AC Power
Power feeders from a dedicated AC-power source (usually located outside the building) 
connect to an AC-load center. These feeders do not power other equipment. The AC-load 
center distributes the power to receptacles. The power cord from the AC-power 
distribution unit in each multicarrier cabinet and AC-power supply in each single-carrier 
cabinet plugs into a receptacle.
60 Hz Power Sources in R8 Systems
Each of the following power sources can supply 60-Hz power to the AC load in R7 and 
later systems: 
nSingle-phase, 4-wire, 120/240 VAC. See Figure 17.
nThree-phase, 5-wire, 208 VAC. See Figure 18. 
						

							Site Requirements 
48 Cabinet Power Requirements 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Figure 17. Single-Phase, 120/240 VAC, 60 Hz Source
Figure 18. Three-Phase, 120/208 VAC, 60 Hz Source
120 240
120
Phase A
GroundNeutral
Phase BTo equipment room
AC load center
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120
208
208
120
120
Neutral
Phase A
Phase CGround Phase B
To equipment room
AC load center
widf3phs LJK 071597 
						

							DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Site Requirements 
49 Cabinet Power Requirements 
50 Hz Power Sources in R8 Systems
Either of the following power sources can supply 50-Hz power to the AC- load in R7 and 
later systems:
nInternational 5-wire, Y, 220/380 VAC. See Figure 19. 
nInternational Delta, 3-wire, 220 or 240 VAC. See Figure 20.
NOTE:
The type of power for a Multi-Carrier Cabinet is shown on the cabinet’s rear door, 
a Single-Carrier Cabinet is shown on the cabinet’s rear cover, and a Compact 
Modular Cabinet is shown on the right door.
Figure 19. International, Three Phase, 220/380 VAC, 50-Hz Source
220 V
220 V
220 V380 V380 V 380 V
Phase A
Phase B
Neutral
Ground
Phase CTo equipment room
AC load center
widf4wir LJK 071497 
						

							Site Requirements 
50 Cabinet Power Requirements 
DEFINITY Enterprise Communications Server Release 8.2
System Description  555-233-200  Issue 1
April 2000
Figure 20. International Delta, 220 or 240 VAC, 50-Hz Source
Ta b l e  9 lists the AC-power sources that can supply power to an AC- load in a cabinet. A 
NEMA receptacle (or equivalent) connects to the wires from the unit. The AC power cord 
from the power input of each unit plugs into a receptacle.
Contact your Lucent Technologies representative for the list number of each power 
source application.
220 V
220/240 V
220 V
Phase A
Phase B
Phase C
To equipment
room AC load
center
widf3wir LJK 071497