C H A P T E R 2 |
This chapter provides the specifications and site requirements for planning the installation of the Sun Netra X4450 server.
For safety and compliance information, refer to the Sun Netra X4450 Server Safety and Compliance Guide and the Important Safety Information for Sun Hardware Systems that came with your server.
The following are the physical specifications for the server.
Dimension | Server Dimensions | Measurements |
---|---|---|
Width | Including bezel | 17.5 in. (445.0 mm) |
Depth | To PSU handles | 20.87 in. (530 mm) |
Height | 4 rack unit (4U) nominal | 6.86 in. (174.2 mm) |
Weight | Fully configured without PCI cards | 72.6 lbs (33 kg) |
The following table contains the minimum clearances needed for servicing the server.
Description | Specification |
---|---|
Front of server | 36 inches (91 cm) |
Rear of server | 36 inches (91 cm) |
The following table contains the environmental specifications for the AC and DC versions of the server.
Specification | Operating | Nonoperating |
---|---|---|
Ambient temperature[1] | 41°F to 104°F (5°C to 40°C) up to 6000 feet (1829 meters)[2] | –40°F to 158°F (–40°C to 70°C) |
Relative humidity | 10% to 90% noncondensing, short term
25°F to 113°F (-5°C to 55°C)
5% to 90% noncondensing, but not to exceed 0.024 kg of water per kg of dry air (0.053 lbs. water/2.205 lbs. dry air) |
Up to 93% noncondensing 100.4° (37.7°C) maximum wet bulb |
Elevation (Sun requirement) | Maximum 9840 feet (3000 meters) at 104°F (40°C) | Maximum 39370 feet (12000 meters) |
Elevation (NEBS requirement) | -200 feet to 5900 feet (-60 meters to
1800 meters) at 104°F (40°C)
5900 feet to 13100 feet (1800 meters to 4000 meters) at 86°F (30°C) |
|
Vibration | DC servers: 0.1G, 5-100 Hz, 0.1 Oct/min
AC servers: 0.1G (x,y axes); 0.15G (z axis), 5-500 Hz, 1 Oct/min |
DC servers: 0.1G, 5-100 Hz, 0.1 Oct/min
AC servers: 0.25G (x,y axes); 0.5G (z axis), 5-500 Hz, 1 Oct/min |
Shock | DC servers: Operating 30 m/s2, 11msec half-sine | DC servers: Operating 30 m/s2,
11 msec half-sine
AC servers: 1 in. roll off front to back, 0.5 in. roll off side to side, 20 mm step-up |
Seismic | AC server only: Zone 4 | Not applicable |
The server has four hot-swappable power supplies. Both the AC and the DC power supplies are capable of current sharing. To ensure redundant operation of the power supplies, connect the four power cords to separate circuits.
The following table shows the electrical limits and ranges for the server.
Note - The DC power source must be reliably connected to ground. |
The total input power for the system is divided equally among the power supplies in operation. Reversing the positive and negative inputs to the power supplies of a DC input system will not cause damage. However, the power supplies with reversed input will not operate.
The inputs to a power supply are isolated from the system chassis and the other power supply inputs. The AC or DC power inputs may be at different voltages within the acceptable range and may have different offset voltages relative to the system chassis.
The server complies with the following specifications.
Category | Relevant Standards |
---|---|
Safety | UL/CSA-60950-1 EN60950-1 IEC60950-1 CB Scheme with all country deviations IEC825-1, 2 CFR21 part 1040 CNS14336, GB4943 |
Ergonomics | EK1-ITB-2000 |
RFI/EMC | EN55022 Class A 47 CFR 15B Class A ICES-003 Class A VCCI Class A AS/NZ 3548 Class A CNS 13438 Class A KSC 5858 Class A GB9254 Class A EN61000-3-2 GB17625.1 EN61000-3-3 |
Immunity | EN55024 IEC 61000-4-2 IEC 61000-4-3 IEC 61000-4-4 IEC 61000-4-5 IEC 61000-4-6 IEC 61000-4-8 IEC 61000-4-11 |
Telecommunications | EN300-386 |
Regulatory markings (pending) | CE, FCC, ICES-003, C-tick, VCCI, GOST-R, BSMI, MIC, UL/cUL, UL/DEMKO/GS, UL/S-mark, CCC |
Your environmental control system must provide intake air for the server which complies with the limits specified in Environmental Specifications.
To avoid overheating, do not direct warmed air:
Toward the server access panels
The server has been tested to meet all functional requirements when operating in the operating environmental limits presented in Environmental Specifications. Operating computer equipment in extremes of temperature or humidity increases the failure rate of hardware components. To minimize the chance of component failure, use the server within the optimal temperature and humidity ranges.
Good practice is to connect each power supply to a separate circuit, which enables the server to remain operational if one of the circuits fails. Consult your local electrical codes for any additional requirements.
An ambient temperature range of 21°C (69.8°F) to 23°C (73.4°F) is optimal for server reliability. At 22°C (71.6°F) it is easy to maintain safe relative humidity levels. Operating in this temperature range provides a buffer if the environmental support systems fail.
Ambient relative humidity levels between 45% and 50% are the most suitable for data processing operations in order to:
Provide an operating time buffer in the event of environmental control system failure
Help avoid failures caused by the intermittent interference from static discharges that occur when relative humidity is too low
Electrostatic discharge (ESD) is easily generated and less easily dissipated in areas where the relative humidity is below 35%, and becomes critical when levels drop below 30%.
Ensure unobstructed airflow through the chassis. The server uses internal blowers that can achieve a total airflow of 120 CFM (3.4 m3/) in normal operating conditions.
Ensure that inlet air enters at the front of the server and exits from the back.
Ensure that ventilation openings such as cabinet doors, for both the inlet and exhaust of the server, provide a minimum open area of 35.5 in.2 (231 cm2) each. This size equates to a 60% open area perforation pattern across the front and rear area of the server 17.4 in. x 3.4 in. (442 mm x 87.1 mm). The impact of other open area characteristics that are more restrictive. You must evaluate.
Ensure that front and rear clearance of the server allow a minimum of 0.2 in. (5 mm) at the front of the server and 3.15 in. (80 mm) at the rear of the server when mounted. These clearance values are based on the inlet and exhaust impedance (available open area) stated in the third bullet assume a uniform distribution of the open area across the inlet and exhaust areas. These values also improve cooling performance.
Take care to prevent recirculation of exhaust air within a rack or cabinet.
Manage cables to minimize interference with the server exhaust vent.
Ensure that air temperature rise through the server is no greater than 68°F (20°C).
The acoustic noise emissions on the server are as follows:
Parameter | Operating | Idling |
---|---|---|
Acoustic power LWAd (1B=10dB) | 7.1 B | 7.1 B |
Declared noise emissions are in accordance with ISO 9296 standards.
To calculate the heat generated by a server so that you can estimate the heat your cooling system must dissipate, convert the figure for the server’s power requirement from Watts to BTU/hr. A general formula for doing this is to multiply the power requirement figure in Watts by 3.412.
Telcordia certified that the DC-powered version of the server meets NEBS Level 3 requirements per SR-3580, including the appropriate sections of GR-63-CORE (Network Equipment-Building System Requirements: Physical Protection) and GR-1089-CORE (Electromagnetic Compatibility and Electrical Safety – Generic Criteria for Network Telecommunications Equipment).
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