Transcript
Installing the Cisco MDS 9506 Director in a Rack Table 2-3 lists the items provided in the Cisco MDS 9506 rack-mount kit. The kit contains extra M4 screws in case the front rack-mount brackets were removed from the switch and must be reinstalled.
Note The rack-mount kit for the Cisco MDS 9506 Director does not include side rack-mount brackets, because they are not required to install the Cisco MDS 9506 Director.
Table 2-3 Contents of Cisco MDS 9506 Rack-Mount Kit
Quantity
Part Description
14
12-24 x 3/4-in. Phillips binder-head screws
14
10-32 x 3/4-in. Phillips binder-head screws
14
M4 x 6-mm Phillips pan-head screws
2
Cable management brackets
Figure 2-9 shows the installation of a Cisco MDS 9506 director into a rack, using the cable management bracket. Figure 2-9 Installing the Cisco MDS 9506 Chassis in the Rack
1 Screws, 12-24 or 10-32
3 Mounting rail
2 Front rack-mount bracket (behind cable guide)
4 Cable management bracket
To install the Cisco MDS 9506 chassis in the rack using the rack-mount kit, follow these steps:
Step 1 Place all the parts and screwdrivers near the rack for easy access while attaching the switch to the rack.
Note The front rack-mount brackets are shipped installed on the switch. If they have been uninstalled, reinstall them on the switch using the M4 x 6-mm screws.
Step 2 Position a person at each side of the chassis. Grasp the bottom of the chassis and slowly lift the chassis in unison, avoiding sudden twists or moves to prevent injury. Insert the rear of the chassis between the front mounting rails (see Figure 2-9), supporting the switch inside the rack until the next step is complete. Step 3 If you are installing the optional cable management bracket, align the holes in the cable management bracket with the holes in the front, right rack-mount brackets and the mounting rail. Ensure that the chassis is level, and pass the screws through the cable management brackets and front rack-mount bracket and into the mounting rail.
Note Because the fan tray is on the left side of the chassis, Cisco recommends using only the right side for cable management. This allows easy removal of the fan tray if you need to replace a fan.
Step 4 Align the holes in the front rack-mount bracket with the holes in the mounting rail, and ensure that the chassis is level. Insert the 12-24 x 3/4-inch or 10-32 x 3/4-inch screws (depending on the type of holes in the mounting rails) through the holes in the front rack-mount bracket and into the holes in the mounting rails, using four screws per side.
Caution Use a minimum of four screws per side to ensure that the switch is adequately supported by the front rack-mount brackets.
System Grounding
This section describes the need for system grounding and explains how to prevent damage from electrostatic discharge.
Proper Grounding Practices Grounding is one of the most important parts of equipment installation. Proper grounding practices ensure that the buildings and the installed equipment within them have low-impedance connections and low-voltage differentials between chassis. When you properly ground systems during installation, you reduce or prevent shock hazards, equipment damage due to transients, and data corruption. Table 2-4 lists grounding best practices. Table 2-4 Grounding Best Practices
Environment
Electromagnetic Noise Severity Level
Commercial building is High subjected to direct lightning strikes. For example, some places in the United States, such as Florida, are subject to more lightning strikes than other areas.
Grounding Recommendations All lightning protection devices must be installed in strict accordance with manufacturer recommendations. Conductors carrying lightning current should be spaced away from power and data lines in accordance with applicable recommendations and codes. Appropriate grounding practices must be closely followed.
Commercial building is located in an area where lightning storms frequently occur but is not subject to direct lightning strikes.
High
Appropriate grounding practices must be closely followed.
Commercial building contains a mix of information technology equipment and industrial equipment, such as welding.
Medium to high
Appropriate grounding practices must be closely followed.
Existing commercial building is not subject to natural environmental noise or man-made industrial noise. This building contains a standard office environment. This installation has a history of malfunction due to electromagnetic noise.
Medium
Appropriate grounding practices must be closely followed. Determine source and cause of noise if possible, and mitigate as closely as possible at the noise source or reduce coupling from the noise source to the victim equipment.
New commercial building is Low not subject to natural environmental noise or man-made industrial noise. This building contains a standard office environment.
Appropriate grounding practices should be followed as closely as possible. Electromagnetic noise problems are not anticipated, but installing a best practice grounding system in a new building is often the least expensive route and the best way to plan for the future.
Existing commercial building is not subject to natural environmental noise or man-made industrial noise. This building contains a standard office environment.
Low
Appropriate grounding practices should be followed as much as possible. Electromagnetic noise problems are not anticipated, but installing a best practice grounding system is always recommended.
Note In all situations, grounding practices must comply with local National Electric Code (NEC) requirements or local laws and regulations.
Note Always ensure that all of the modules are completely installed and that the captive installation screws are fully tightened. In addition, ensure that all I/O cables and power cords are properly seated. These practices are normal installation practices and must be followed in all installations.
