Physical Specifications

This appendix provides information about the following Catalyst 3900 topics:

Physical Dimensions

Table D-1 lists the physical dimensions for a Catalyst 3920.

Physical Feature	Dimension
Rack mounted width	19 in. (482.6 mm)
Standalone width	17.38 in. (441.45 mm)
Depth	11.1 in. (281.94 mm)
Height	1.72 in. (43.68 mm)
Weight	10 lbs (4.54 kg)

Table D-1: Dimensions

Physical Feature Dimension

Rack mounted width

19 in. (482.6 mm)

Standalone width

17.38 in. (441.45 mm)

Depth

11.1 in. (281.94 mm)

Height

1.72 in. (43.68 mm)

Weight

10 lbs (4.54 kg)

Note Rack mount brackets and mounting hardware are included with the unit.

Power Requirements

Table D-2 lists the power requirements of the Catalyst 3920. An appropriate power cord for the country of installation is shipped with the Catalyst 3920.

Power	90 to 264 VAC autosensing (single supply)
Frequency	47 to 63 Hz
AC Current Rating	0.75A @ 115VAC, 0.38A @ 230VAC
Thermal Dissipation	75W max, 256 BTU/hr

Table D-2: Power Requirements

Power

90 to 264 VAC autosensing (single supply)

Frequency

47 to 63 Hz

AC Current Rating

0.75A @ 115VAC, 0.38A @ 230VAC

Thermal Dissipation

75W max, 256 BTU/hr

Operating Environment

Table D-3 lists the operating environment parameters of a Catalyst 3920.

Characteristic	Value or Range
Operating temperature	50° F to 104° F (10° C to 40° C)
Operating relative humidity	8% to 80%
Maximum wet-bulb temperature	81° F (27° C)
Thermal dissipation	150 watts (maximum); 512 Btu/hr
Electrical power	1.5 A at 115V; 0.75 A at 230V
Leakage/starting	Current less than 3.5 mA/15 amperes/half cycle

Table D-3: Operating Environment

Characteristic Value or Range

Operating temperature

50° F to 104° F (10° C to 40° C)

Operating relative humidity

8% to 80%

Maximum wet-bulb temperature

81° F (27° C)

Thermal dissipation

150 watts (maximum); 512 Btu/hr

Electrical power

1.5 A at 115V; 0.75 A at 230V

Leakage/starting

Current less than 3.5 mA/15 amperes/half cycle

Table of Contents