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This section provides the Cisco MDS 9000 Family requirements for the following types of cabinets and racks, assuming an external ambient air temperature range of 0 to 40°C:
Note If you are selecting an enclosed cabinet, we recommend one of the thermally validated types listed above: standard perforated or solid-walled with a fan tray.
The cabinet or rack must be one of the following rack types:
The cabinet or rack must also meet the following requirements:
– The minimum spacing for bend radius for fiber-optic cables should have the front mounting rails of the cabinet offset from the front door by a minimum of 3 in. (7.6 cm), and a minimum of 5 in. (12.7 cm) if cable management brackets are installed on the front of the chassis.
– The distance between the outside face of the front mounting rail and the outside face of the back mounting rail should be 23.5 to 34.0 in. (59.7 to 86.4 cm) to allow for rear bracket installation.
– There should be a minimum of 2.5 in. (6.4 cm) of clear space between the side edge of the chassis and the side wall of the cabinet. No sizeable flow obstructions should be immediately in the way of the chassis air intake or exhaust vents.
Note Optional jumper power cords are available for use in a cabinet. See the “Jumper Power Cord”.
In addition to the requirements listed in the “General Requirements for Cabinets and Racks” section, perforated cabinets must meet the following requirements:
A perforated cabinet that conforms to the above requirements is available from Rittal Corporation:
Cabinet description: PS-DK/OEM Cabinet Assembly, 1998 x 600 x 1000 (H x W x D) (42U)
In addition to the requirements listed in the “General Requirements for Cabinets and Racks” section, solid-walled cabinets must meet the following requirements:
In addition to the requirements listed in the “General Requirements for Cabinets and Racks” section, if mounting the chassis in an open rack (no side panels or doors), ensure that the rack meets the following requirements:
In addition to the requirements listed in the “General Requirements for Cabinets and Racks” section, telco racks should meet the following requirements:
The optional Telco and EIA Shelf Bracket Kit (part number DS-SHELF=) can temporarily or permanently support the Cisco MDS 9148S switch during installation. Once the front rack-mount brackets are securely attached to the rack-mounting rails, the shelf bracket can be removed.
This kit supports the following configurations:
Note This optional kit is not provided with the switch; to order the kit, contact your switch supplier.
This section describes the procedure for installing a Cisco MDS 9148S switch in a rack or cabinet using the optional Telco and EIA Shelf Bracket Kit. This section includes the following information:
– Installing the Shelf Bracket Kit into a Four-Post EIA Rack
– Installing the Shelf Bracket Kit into a Two-Post Telco Rack
– Installing the Switch on the Shelf Brackets
– Removing the Shelf Bracket Kit (Optional)
Before rack-mounting the chassis, ensure that the cabinet or rack meets the following requirements:
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Before installing the shelf brackets, inspect the contents of your kit. Table 1-1 lists the contents of the shelf bracket kit.
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Figure 1-1 shows the installation of the shelf bracket kit into a two-post Telco rack.
Figure 1-1 Installing the Shelf Bracket Kit into a Telco Rack
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To install the shelf brackets in a Telco rack, follow these steps:
Step 1 Position a shelf bracket inside a rack-mounting rail as shown in Figure 1-1 and align the screw holes at the front of the shelf bracket with the holes in the rack-mounting rail. Then attach the shelf bracket to the rack-mounting rail using a minimum of four 12-24 or 10-24 screws.
Note The bottom hole of the shelf bracket should align with the bottom hole of a rack unit on the rack-mounting rail (the hole immediately above the 1/2-in. spacing).
Step 2 Repeat with the other shelf bracket.
Step 3 Verify that the shelf brackets are at the same height (using the level or tape measure as desired).
Step 4 Attach the crossbar to the rear of the shelf brackets as shown in Figure 1-1, using the 10-32 screws.
Figure 1-2 shows the installation of the shelf bracket kit into a four-post EIA rack.
Figure 1-2 Installing the Shelf Bracket Kit into an EIA Rack
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To install the shelf brackets in an EIA rack, follow these steps:
Step 1 Position a shelf bracket inside the rack-mounting rails as shown in Figure 1-2. Align the screw holes at the front of the shelf bracket with the holes in the front rack-mounting rail. Then attach the shelf bracket to the front rack-mounting rail using a minimum of four 12-24 or 10-24 screws.
Note The bottom hole of the shelf bracket should align with the bottom hole of a rack unit on the rack-mounting rail (the hole immediately above the 1/2-in. spacing).
Step 2 Repeat with the other shelf bracket.
Step 3 Verify that the shelf brackets are at the same height (using the level or tape measure as desired).
Step 4 Attach the crossbar to the shelf brackets as shown in Figure 1-2, using the 10-32 screws.
Step 5 Insert the slider rails into the shelf brackets as shown in Figure 1-2. Then attach them to the rear rack-mounting rails using a minimum of four 12-24 or 10-24 screws.
This section provides general instructions for installing the switch on top of the shelf brackets. For detailed installation instructions, see the “Front-Facing Installation”.
Warning This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030
Note Before you install, operate, or service the system, refer to the Regulatory Compliance and Safety Information for the Cisco MDS 9000 Family for important safety information.
To install the switch on top of the shelf brackets, follow these steps:
Step 1 Verify that the shelf brackets are level and securely attached to the rack-mounting rails, the crossbar is securely attached to the shelf brackets, and the rack is stabilized.
Step 2 Slide the switch onto the shelf brackets, ensuring that it is squarely positioned.
Step 3 Attach the switch to the rack-mounting rails. See the “Front-Facing Installation”.
Note The grounding lug must be NRTL listed and compatible with copper conductors. Only copper conductors (wires) must be used and the copper conductor must comply with National Electrical Code (NEC) for ampacity.
The shelf bracket kit can be removed after the Cisco MDS 9148S switch has been installed in a four-post EIA rack, and both front rack-mount brackets and both C brackets are securely attached to the rack-mounting rails.
To remove the shelf bracket kit, follow these steps:
Step 1 Remove the screws fastening the slider brackets to the rear rack-mounting rails, and then slide the slider brackets out of the shelf brackets.
Step 2 Remove the screws fastening the crossbar to the shelf brackets, and then remove the crossbar.
Step 3 Remove the screws fastening the shelf brackets to the front rack-mounting rails and remove the shelf brackets from the rack.