HP J3175A Installation And Reference Manual: Safety And Regulatory Statements; Mounting Precautions

Hewlett-packard advancestack switch installation and reference guide.

Safety and Regulatory Statements

This chapter covers the following topics:

When you put a switch into a rack, follow these mounting precautions:

mounting precautions

power precautions

safety and regulatory statements

Declaration of Conformity

The rack or cabinet should be adequately secured to prevent it from

becoming unstable and/or falling over. The first switch (or single switch)

should be mounted in a position toward the bottom of the rack for stability

and to make it easier to stack the other switches on top.

Before mounting a switch, plan its location and orientation relative to

other devices and equipment. Also consider the cabling that will be

attached to the switch and the ports that will be used. Verify that there is

room for the grouped cables to trail out from the side of the switch. Allow

at least 7.6 cm (3 inches) in the front of the switch. In the back of the

switch, allow at least 3.8 cm (1 1/2 inches) of space for the power cord.

Ensure that the switch does not overload the power circuits, wiring, and

over-current protection. To determine the possibility of overloading the

supply circuits, add together the amperage ratings from all your switches

(and other equipment) installed on the same circuits and compare the

total with the rating limits for the supply circuits.

Make sure that the power source circuits are properly grounded, then use

the supplied power cord to connect the switch to the circuit. See the Safety

Statements in this chapter.

Do not install the switch in an environment where the operating ambient

temperature might exceed 55 C (131 F).

Make sure the air flow around the sides of the switch is not restricted.

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Table of Contents

J3177a, Advancestack 208, Advancestack 224