3Com 3CBLSF26PWRH User Manual

Also see for 2226-SFP Plus: Installation and user guide

Contents

1-6z Water or moisture cannot enter the case of the unit.z Air flow around the unit and through the vents on the side of the case is not restricted (3Comrecommends that you provide a minimum of 25 mm (1 in.) clearance).z The air is as free from dust as possible.z Temperature operating limits are not likely to be exceeded. It is recommended that the unit isinstalled in a clean, air conditioned environment.It is always good practice to wear an anti-static wrist strap when installing network equipment,connected to a ground point. If one is not available, try to keep in contact with a grounded rack andavoid touching the unit's ports and connectors, if possible. Static discharge can cause reliabilityproblems in your equipment.Rack-Mounting or Free-StandingThe unit can be mounted in a 19-inch equipment rack using the mounting kit or it can be free standing.Do not place objects on top of the unit or stack.If installing the switch in a free-standing stack of different size Baseline or Super stack 3 units, thesmaller units must be installed above the larger ones. Do not have a free-standing stack of more thansix units.Using the Mounting KitThe switch is supplied with two mounting brackets and four screws. These are used for rack mountingthe unit. When mounting the unit, you should take note of the guidelines given in Positioning the Switch.The switch is 1U (1.7 inches) high and will fit in a standard 19-inch rack.Disconnect all cables from the unit before continuing. Remove the self-adhesive pads from theunderside of unit, if already fitted.To rack-mount the switch:1) Place the unit the right way up on a hard, flat surface with the front facing towards you.2) Locate a mounting bracket over the mounting holes on one side of the unit.3) Insert the two screws supplied in the mounting kit and fully tighten with a suitable screwdriver.