Install Guide

Table Of Contents
The cabinet must meet minimum size requirements. Airow must be in accordance with the Electronic Industries Alliance (EIA) standard.
Ensure that there is a minimum of 5 inches (12.7 cm) between the intake and exhaust vents and the cabinet wall.
Rack mounting
When you prepare your equipment rack, ensure that the rack is grounded.
Ground the equipment rack to the same ground point the power service in your area uses. The ground path must be permanent.
Fans and airow
The S5148F-ON switch fans support two airow options: normal and reverse.
Fan combinations
Fan installation is done as part of the factory install based on stock keeping unit (SKU) type. The S5148F-ON switch has SKUs that support
the following congurations:
AC or DC PSU with fan airow from the I/O to the PSU—the red indicator is the normal airow direction
AC or DC PSU with fan airow from the PSU to the I/O—the blue indicator is the reverse airow direction
Order the fans suitable to support your site’s ventilation. Use a single type of airow fan in your switch. Do not mix reverse and normal
airows in a single S5148F-ON switch.
For proper ventilation, position the switch in an equipment rack or cabinet with a minimum of 5 inches (12.7 cm) of clearance around the
exhaust vents. When you install two S5148F-ON switches near each other, to permit proper airow, position the two switches at least 5
inches (12.7 cm) apart. The fan speed varies based on internal temperature monitoring. The S5148F-ON switch never intentionally turns o
the fans.
For more information, see Fans.
Power
Connect the switch to the applicable power source using the appropriate power cord. An AC power cord is included with each PSU.
When installing AC or DC switches, follow the requirements of the National Electrical Code, ANSI/NFPA 70, where applicable.
The switch is powered-up when you connect the power cord between the switch and the power source. For more information, see Power
supplies.
CAUTION
: Always disconnect the power cable before you service the power supply slots. The switch has multiple power cords.
Before servicing, ensure all power cords are disconnected.
CAUTION: On an AC switch, use the power supply cord as the main disconnect device. Ensure that the socket-outlet is located
and installed near the equipment and is easily accessible.
NOTE: Module power is software controlled. You do not see module LEDs when the switch powers up in ONIE.
Storing components
If you do not install your S5148F-ON switch and components immediately, properly store the switch and all optional components using
these guidelines:
Storage location temperature must remain constant. The storage range is from -40°C to 70°C (-40° to 158°F).
Store on a dry surface or oor, away from direct sunlight, heat, and air conditioning ducts.
Site preparations
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