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Installing a LightStream 2020 Switch 2-3
Installing an LS2020 Switch in Rack
Installing an LS2020 Switch in Rack
This section explains how to mount an LS2020 chassis in an equipment rack.
Note For physical stability, when an LS2020 chassis is installed in a rack, the equipment
configuration should comply with UL Standard 1950, Par. 4.1.1, and IEC 950, 4.1.1.
Cooling Air and Hardware Placement
An LS2020 chassis takes in cooling air at the bottom of the front panel and exhausts it at the top rear
and right side of the chassis. (The air vents on the right side of the chassis can safely be covered by
the rack side panels, but they should not otherwise be blocked.) To minimize the potential for
thermal problems, position the LS2020 chassis so that:
• The air intake panel is not near the exhaust of other equipment.
• The exhaust is not near the air intake of other equipment.
Required Tools
Ensure that you have the following items on hand before you begin installing the LS2020 switch:
• A Number 2 Phillips screwdriver for mounting the chassis.
• A 5/16-inch slotted-tip screwdriver for removing blowers, power supplies, and boards from the
chassis.
• An ESD wrist strap for grounding yourself to the chassis.
• Antistatic shielding bags or antistatic mats for protecting components removed from the chassis.
• Appropriate material-handling equipment for lifting the LS2020 switch into the rack.
• For AC-powered systems: an LS2020 Country Power Kit, which includes a power cord and
mounting hardware for the chassis.
• For DC-powered systems: a DC Mounting Kit, which contains mounting hardware for the
chassis, plus equipment needed by the electrician for wiring the system (see the subsection
entitled “Preparation for Wiring” later in this chapter).
Rack Installation Procedure
To mount the LS2020 switch in an equipment rack, perform the following steps:
Step 1 Ensure that the power cord to the system is disconnected.
Step 2 Put on the ESD wrist strap and connect it to a grounding jack on the front or the rear panel
of the LS2020 chassis.
Step 3 Reduce the weight of the system by removing the blowers (top front and top rear) and
power supplies (right rear) from the chassis.
These components are located behind removable covers. Figure 2-1 shows the front view
of the LS2020 chassis, while Figure 2-2 shows the rear view of the chassis.