User guide

9033060 Installation 13
2. INSTALLATION
Inspecting Your Shipment
When you receive the shipment of your hub, check the package contents
and make sure you have the following items:
• ELH100-12/24TX dual speed Ethernet hub
• Mounting ears and mounting screws
• Four rubber feet
• Stack cable
• Power cord
• This document
Site Requirements
Before you install the hub, make sure the site meets the following
requirements:
• Mounting
Provide a flat table, shelf surface, or an optional 19 in. (48.3 cm)
equipment rack.
Use an EIA standard equipment rack that is grounded and physically
secure.
• Power source
Provide a power source within six feet (1.8 m) of the installation
location. This source must provide 100 VAC to 240 VAC, and 50 Hz
to 60 Hz power, with a 50 VA minimum. Power specifications for the
hub are shown in Appendix A, “Technical Specifications.”
• Environmental
Install the ELH100-12/24TX hub in a dry area, with adequate air
circulation. Avoid placing the hub in direct sunlight or near other heat
sources, such as hot-air vents. For temperature and humidity
specifications, see Appendix A, “Technical Specifications.”
• Ventilation
Do not restrict airflow by covering or obstructing air inlets on the side
of the hub.
Primaryvoltage selectionwithin theabove rangesis
automatic and requires no user action.