Technical data

Installing and Configuring the Switch

● Installation and safety considerations............................................................................. 19

● Installation Precautions................................................................................................... 20

● Items included with the switch.........................................................................................21

● Setting up the Brocade 7840 as a standalone unit......................................................... 21

● Installing in an EIA rack...................................................................................................22

● Initial setup of the switch................................................................................................. 22

● Recommendations for cable management..................................................................... 30

Installation and safety considerations

You can install the switch in the following ways:

• As a standalone unit on a flat surface.

• In an EIA rack using the Universal Two-Post Rack Kit or Universal Four-Post Rack Kit.

To install and operate the switch successfully, ensure that the following requirements are met:

• The primary AC input is 100-240 VAC (Brocade 7840 autosenses input voltage), 50-60 Hz. 200-240

VAC is recommended.

• The primary outlet is correctly wired, protected by a circuit breaker, and grounded in accordance with

local electrical codes. It is best practice that each power supply obtain its power from a different

protected and wired source. It is best practice that each power supply obtain its power from a

different protected and wired source.

• The supply circuit, line fusing, and wire size are adequate, as specified by the electrical rating on the

Brocade 7840 nameplate.

For power supply information, refer to Power supplies and fans on page 37.

To ensure adequate cooling, install the Brocade 7840 with the nonport side, which contains the air

intake vents, facing a cool-air aisle.

CAUTION

Make sure the airflow around the front, sides, and back of the device is not restricted.

Verify that the ambient air temperature does not exceed 40°C ( 104°F) and that the ambient humidity

remains between 20 and 85 percent while the Brocade 7840 is operating.

CAUTION

Do not install the device in an environment where the operating ambient temperature might

exceed 40°C (104°F).

If installing the Brocade 7840 in a rack:

• The rack must be a standard EIA rack.

• Plan for a rack space that is 2U ( 8.89 cm; 3.5 in.), (19 in.) 48.3 cm wide, and at least 61cm (24 in.)

deep.

• Ground all equipment in the rack through a reliable branch circuit connection and maintain ground at

all times. Do not rely on a secondary connection to a branch circuit, such as a power strip.

Brocade 7840 Extension Switch Hardware Reference Manual

53-1003127-02