C H A P T E R  2
 Cabinet Specifications

This chapter describes the physical, environmental, and electrical requirements for the Sun Rack 1000-38 cabinet.

The floor area at the installation site must provide enough stability to support the weight of the cabinet and installed trays, sufficient space for installation and servicing of the cabinet and components, and sufficient ventilation to provide a free flow of air to the cabinet.

To ensure safe and proper operation of the system, and ease of maintenance, make sure that all of these requirements are met before using the cabinet.

## Dimension and Weight

TABLE 2-1 provides the physical dimensions of the Sun Rack 1000-38 cabinet.

TABLE 2-1 Sun Rack 1000-38 Cabinet Dimensions

Height

Width

Depth

74 in.
(188 cm)

23.5 in.
(59.7 cm)

39.4 in.
(1000 mm)

A fully loaded Sun Rack 1000-38 cabinet has a maximum weight of 1625 pounds (737 kilograms). The total weight of your Sun Rack 1000-38 cabinet depends on the number and type of components installed in the cabinet. TABLE 2-2 lists the weight of an empty cabinet and the maximum weight of each component. Use these weights to estimate the total weight of your system, based on the number of components installed in the cabinet. Record the total weight in an easy-to-find place to reference when checking flooring load or elevator weight restrictions.

TABLE 2-2 Sun Rack 1000-38 Cabinet and Component Weights

Component

Quantity

Weight

(each)

Total Weight
(lbs or kg)

Cabinet (empty)

1

X

360 lbs (163.3 kg)

=

Cabinet (with 2 power sequencers)

1

X

410 lbs (185.97 kg)

=

Chassis, front cage, and midplane

X

36.1 lbs (16.4 kg)

=

Controller tray

X

80.5 lbs (36.51 kg)

=

Expansion tray (no drives)

X

4.15 lbs (1.88 kg)

=

Front cage and midplane assembly

X

9.1 lbs (4.2 kg)

=

Power supply

X

7.95 lbs (3.60 kg)

=

Fibre Channel drives

X

1.65 lbs (0.75 kg)

=

SATA II drives

X

2.29 lbs (1.04 kg)

=

Total Weight

=

## Environmental Requirements

This section describes the environmental conditions that are prerequisite to installing Sun Rack cabinets.

### Temperature, Humidity, and Altitude

TABLE 2-3 lists operating and nonoperating temperature, relative humidity, and altitude ranges for the Sun Rack 1000-38 cabinet.

TABLE 2-3 Cabinet Temperature, Humidity, and Altitude

Specification

Operating

Nonoperating

Temperature

41°F to 95°F

(5°C to 35°C)

-40°F to 150.8°F

(-40°C to -66°C)

Relative humidity (RH)

20% to 80% noncondensing

5% to 95% noncondensing

Altitude

0 to 9,840 feet

(0 to 3 km)

0 to 39,370 feet

(0 to 12 km)

If you plan to operate a system at an altitude between 3280 ft. to 10,000 ft. (1000 m to 3048 m) above sea level, lower the environmental temperature 3.3°F (1.7°C) for every 3280 ft. (1000 m) above sea level.

TABLE 2-4 lists the acceptable temperatures in which the 6540 controller tray is designed to operate.

TABLE 2-4 Controller Tray Temperature

Range

Temperature

Maximum Rate of Change per Hour

Operating

32°F to 104°F

(0°C to 40°C)

18°F (10°C)

Storage

14°F to 149°F

(-10°C to 65°C)

27°F (15°C)

Transit

-40°F to 149°F

(-40°C to 65°C)

36°F (20°C)

lists the acceptable humidity ranges in which the 6540 controller tray is designed to operate.

Measure

Maximum Rate of Change per Hour

Operating range

20% to 80%

Storage range

10% to 93%

Transit range

5% to 95%

Maximum dew point

79°F (26°C)

10% per hour

TABLE 2-5 Controller Tray Relative Humidity (RH), Noncondensing

### Airflow and Heat Dissipation

Cabinet airflow is from front to back. Allow at least 30 inches (76.2 cm) in front of the cabinet, and at least 24 (60.96 cm) inches behind the cabinet, for service clearance, proper ventilation, and heat dissipation.

## Power Requirements

The AC power sources must provide the correct voltage, current, and frequency specified on the component model and serial number label. The cabinet can run within the limits shown in TABLE 2-6.

TABLE 2-6 Cabinet AC Power Requirements

Parameter

Requirements

Nominal voltages

200 to 240 VAC

Operating voltage

180 to 264 VAC

Frequency range

47 to 63 Hz

Current

Four 20 Amp circuits are required for the 6540 cabinet to insure full redundancy. (UL allows the planned use of only 16A from each of those 20A circuits.)

AC power plug

NEMA L6-20P (North American)

IEC 309 16A 3-Position (International)

AC power receptacle

NEMA L6-20R (North American)

IEC 309 16A 3-Position (International)

Power cords required

4

All components in the cabinet should operate on only two of the 20A circuits (16A loaded each), but in this case no AC redundancy would be in place (power only A0/A1 or B0/B1).

With all four 20A circuits powered (A0, A1, B0, B1), the cabinet will draw a maximum total of 32A from the four circuits. If the system were to draw more than that 32A, then full AC redundancy cannot be present.

The Sun Rack 1000-38 cabinet power distribution systems work at 180-264VAC only. Internal components will never be operated below 180V (200V nominal) when in this cabinet.

A table showing the AC power requirements, including voltage, current, and frequency specified on the component model and serial number label of the Sun Rack 900/1000 cabinet.