This section describes how to combine the N68E-22 cabinets. When combining an N68E-22 cabinet with another cabinet, you should use connecting pieces to secure them. The combining of N68E-22 cabinets can be classified into the following: combining of two N68E-22 cabinets and combining of N68E-22 and N68-22 cabinets.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
5.1 Materials for Installing the N68E-22 Cabinet on the Concrete Floor
The N68E-22 cabinet can be directly installed on the concrete floor, so other types of materials are not required. Ensure that you have arranged sufficient N68E-22 cabinets as required.
5.2 Template Files for Installing the N68E-22 Cabinet
The template files for installing the N68E-22 cabinet consist of the equipment room floor plan and the marking template. The equipment room floor plan is used to determine the installation position of the N68E-22 cabinet in the equipment room. The marking template is used to determine the drilling positions. The installation of the N68E-22 cabinet on a concrete floor and that of the N68E-22 cabinet on an ESD floor use the same equipment room floor plan but different marking templates. Combining the adjacent N68E-22 Cabinets is recommended, and the SFP+
High-Speed Cables can be installed when the length of the cables is not long enough.
Equipment Room Floor Plan
The Equipment Room Floor Plan is provided by the customer or the site survey personnel.
Figure 5-1 shows an example of the Equipment Room Floor Plan.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Figure 5-1 Equipment room floor plan (unit: mm)
NOTE
See Figure 5-1. The requirements for the installation position of the N68E-22 cabinet are as follows:
l The distance between two rows of cabinets should be at least 1,000 mm.
l The distance between the wall and the cabinet side that is the closest to the wall should be at least 800 mm.
l The distance between the wall and the row that is the closest to the wall should be at least 800 mm (for double-door cabinets) and 1,000 mm (for single-door cabinets).
l The width of the aisles in the equipment room should be at least 1,000 mm.
Marking Template
The marking template is delivered with the cabinet. The marking template for installing the N68E-22 cabinet on the concrete floor is different from the marking template for installing the N68E-22 cabinet on the ESD floor. See Figure 5-2 and Figure 5-3.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Figure 5-2 Marking template for installing the N68E-22 cabinet on the concrete floor (unit: mm)
Figure 5-3 Marking template for installing the N68E-22 cabinet on the ESD floor (unit: mm)
5.3 Positioning the N68E-22 Cabinet on the Concrete Floor
Positioning the N68E-22 cabinet on the concrete floor involves the following steps: determining cabinet positions, marking the positions, drilling holes, and installing expansion bolt assemblies.
Prerequisites
l The components required for the positioning are available. The required component is the M12x60 expansion bolt assembly.
l The materials required for the positioning are available. The required materials are the marking template and Equipment Room Floor Plan.
l The tools required for the positioning are available. The required tools are the tape measure, marker, hammer drill with Ф16 drill bit, vacuum cleaner, and hammer (for example, claw hammer).
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Context
l Line drawing and hole drilling are the primary tasks for cabinet installation as imprecise drawing or drilling may hamper the installation. Therefore, it is important to ensure their quality.
l Before marking cabinet positions and drilling holes, check the installation position of the equipment, such as cable racks, in the equipment room for easy cabling.
l The Equipment Room Floor Plan is provided by the customer or the site survey personnel.
Procedure
Step 1 Ensure that the Equipment Room Floor Plan is in accordance with the requirements for installing the N68E-22 cabinet by referring to Template Files for Installing the N68E-22 Cabinet.
Step 2 Use a tape measure to determine the cabinet positions based on the dimensions specified in the Equipment Room Floor Plan.
Step 3 Determine the positions of the holes for the expansion bolt assemblies on the concrete floor based on the installation position of the cabinet.
You can use the marking template or tape measure to determine the positions of the holes for the expansion bolt assemblies on the concrete floor. The marking template is made of paper and is prone to deformation. Before using the marking template, check whether it is deformed based on the dimensions of marking template specified in Template Files for Installing the N68E-22 Cabinet.
If... Then...
The marking template is one of the accessories delivered on site and is not deformed,
Go to Step 4.
The marking template is not one of the accessories delivered on site or is deformed,
Go to Step 5.
Step 4 Use the marking plate to determine the positions of the holes for the expansion bolt assemblies.
1. As shown in Figure 5-4 or Figure 5-5, use measuring and marking instruments to measure and mark the start points for the front of a row of cabinets. From each start point, mark the benchmark lines in the cabinet arrangement direction.
2. Place the marking template on the floor. Ensure that the semicircle notch of the template indicates the front of the cabinet and the edges of the template align with the benchmark lines.
3. Mark the positions of the holes (four holes for each cabinet) for expansion bolts on the floor by using the template.
4. After all the hole positions are marked, ensure that the distance between the holes is accurate.
5. Go to Step 6.
Step 5 If the marking template cannot be used on site, use the tape measure to determine the positions of the holes for the expansion bolt assemblies.
1. As shown in Figure 5-4 or Figure 5-5, use measuring and marking instruments to measure and mark two straight lines with 687 mm wide spacing, and ensure that the lines are parallel with the front of the cabinet.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Figure 5-4 Installation holes for one cabinet (unit: mm)
Figure 5-5 Installation holes for a row of cabinets (unit: mm)
2. As shown in Figure 5-4 or Figure 5-5, determine the position of hole for the first expansion bolt assembly on each of the straight lines. Taking the hole as the benchmark point, mark the installation holes for other expansion bolt assemblies in succession.
3. After all the hole positions are marked, ensure that the distance between the holes is accurate.
Step 6 Drill the holes.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
CAUTION
l The concrete floor should not be penetrated. Therefore, you should confirm the thickness of the concrete floor before drilling holes. For some types of concrete floors on which the drilling is not suitable, you should consult the architectural engineers and get their permission before drilling holes.
l Before drilling holes, you should take dustproof measures on the electronic equipment in the equipment room. You should use a vacuum cleaner to remove the dust during the drilling.
Before removing the dustproof cover from the electronic equipment, you should clean up the pieces of concrete that have accumulated during the drilling.
l You must wear safety goggles during the drilling to protect your eyes from the dust.
l While drilling holes, you must hold the drill stock firmly. You must keep the drill bit vertical to the floor to protect the floor from being damaged or the holes from being slanted.
1. Dig a pit by using a chisel to help hold the drill bit to the floor, as shown in Figure 5-6.
Figure 5-6 Digging a pit
2. Use a hammer drill to drill holes at the marked places on the concrete floor. The depth of each hole must range from 52 mm to 60 mm. All the holes must have the same depth. Select a Ф16 drill bit in appropriate length. See Figure 5-7.
Figure 5-7 Drilling a hole
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
3. Ensure that the depth of each hole ranges from 52 mm to 60 mm and that the holes are not slanting. If the depth of the hole is not appropriate or if the hole is slanting, re-drill the hole.
If the slanting hole cannot be corrected, stop using the hole.
4. Remove the dust inside and outside the holes by using a vacuum cleaner.
Step 7 Install the expansion bolt assemblies.
Figure 5-8 shows an expansion bolt assembly.
Figure 5-8 Expansion bolt assembly
1 Bolt 2 Spring washer 3 Flat washer 4 Expansion tube
5 Nut 6 Guiding slot 7 Guiding rib
1. Measure the distance between the holes. If the distance does not meet the specifications, reposition and drill new holes.
2. Insert the guiding rib on the nut into the guiding slot on the expansion tube, and then screw the bolt slightly to ensure that the guiding rib does not move out from the guiding slot. See part 1 of Figure 5-9.
3. Insert the expansion tube and the nut into the hole vertically, and then use a rubber hammer to strike the expansion tube until it is completely buried in the hole, as shown in part 2 of Figure 5-9.
Figure 5-9 Installing the expansion bolt assembly (1)
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
4. Pre-tighten the expansion bolt clockwise so that the nut and the expansion tube do not get loose easily. See part 1 of Figure 5-10.
5. Unscrew the expansion bolt counterclockwise and then remove the spring washer and flat washer. Keep them for future use. See part 2 of Figure 5-10.
Figure 5-10 Installing the expansion bolt assembly (2)
----End
5.4 Securing the N68E-22 Cabinet on the Concrete Floor
This section describes how to secure the N68E-22 cabinet on the concrete floor.
Prerequisites
l The components required for the installation are available. The required component is the N68E-22 cabinet.
l The materials required for the installation are available. The required materials are the insulating pads, flat washers 12, spring washers 12, adjusting pads (optional), and M12x60 expansion bolt assemblies.
l The tools required for the installation are available. The required tools are the pallet truck, level bar, torque wrench, socket wrench, and Phillips screwdriver.
Context
CAUTION
The gravity center of the cabinet is high. Therefore, do not lift or push the cabinet alone. Moving a cabinet requires at least two persons and a pallet truck, so as to ensure personnel safety and equipment safety.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Procedure
Step 1 Remove the wooden protection boards from the front and back of the cabinet.
Step 2 Remove the four wooden protection boards from both the left and right parts of the rack. Pull down the hook pin at the upper part of both the front and back doors of the cabinet, and then remove both doors. Store the doors for future use. See Figure 5-11.
Figure 5-11 Removing the wooden protection boards
NOTE
When storing the doors, you should ensure that they are unlocked. Therefore, the lock rod at the lower part of each door does not protrude, thus preventing the lock rod from deformation. See Figure 5-12.
Figure 5-12 State of the lock of each door
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Step 3 Remove the reinforced plate from both sides of the cabinet.
Step 4 Place the cabinet in the specified position. Align the installation holes in the cabinet with the holes on the floor.
Step 5 Add the spring washer, flat washer, and insulating tube to each of the four expansion bolts. Then, insert each expansion bolt into the expansion tube and pretighten the expansion tube and the nut.
See Figure 5-13.
Step 6 Below the cabinet, push two insulating spacers from both the front and back sides. Ensure that the notch faces the inner side and is wedged in the expansion bolt. Align the installation holes of each insulating spacer with the corresponding expansion bolt holes. See Figure 5-13.
Figure 5-13 Securing the cabinet
1 M12x60 bolt 2 Spring washer 12 3 Flat washer
4 Insulating tube 5 Insulating spacer
Step 7 Using M12 socket wrench to level the cabinet. Use a level bar to check the levelness of the cabinet. If the cabinet is not level, use a socket wrench to adjust the anchor bolt (adjustable range:
0-10 mm) of the cabinet and ensure that the cabinet is level. See Figure 5-14.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Figure 5-14 Leveling the cabinet
1 Anchor bolt 2 Fixing bolt
Step 8 Use the torque wrench to secure the four fixing bolts and tighten them to 45 N•m.
----End
5.5 Testing the Insulation of the N68E-22 Cabinet
This section describes how to test the insulation of the N68E-22 cabinet and how to insulate it from the ground.
Prerequisites
The tool required for the insulation test is available. The required tool is the multimeter.
Procedure
Step 1 Set the multimeter to the megohm scale.
Step 2 Measure the resistance between the M12x60 expansion bolt and the cabinet.
If... Then...
The resistance is greater than or equal to five megohms,
Test completes.
The resistance is smaller than five megohms,
The cabinet is not insulated from the ground.
Go to Step 3.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Figure 5-15 Insulation test
Step 3 Remove all the installation parts between the N68E-22 cabinet and the ground.
Step 4 Ensure that the insulation parts are not missing or damaged.
Step 5 Secure the cabinet again.
Step 6 Repeat Step 1 to test the insulation again.
----End
5.6 Combining the N68E-22 Cabinets
This section describes how to combine the N68E-22 cabinets. When combining an N68E-22 cabinet with another cabinet, you should use connecting pieces to secure them. The combining N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
of N68E-22 cabinets can be classified into the following: combining of two N68E-22 cabinets and combining of N68E-22 and N68-22 cabinets.
Prerequisites
The tools required for the installation are available. The required tools are the wrench and climbing ladder.
Context
If two N68E-22 cabinets are to be combined, the connecting pieces are already installed on top of the cabinets and are delivered with the cabinets. If N68E-22 and N68-22 cabinets are to be combined, special connecting pieces for combining cabinets are required. Figure 5-16 shows the special connecting pieces for combining cabinets.
Figure 5-16 Special connecting pieces for combining cabinets
Procedure
l Combining Two N68E-22 Cabinets
1. Remove the connecting pieces from the column inside the N68E-22 cabinet, rotate each of them by 180 degrees, and then reinstall them, as shown in Figure 5-17.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Figure 5-17 Reinstalling the connecting piece between N68E-22 cabinets
2. Use M8x30 bolts to connect the connecting pieces of the adjacent cabinets together.
See part 1 of Figure 5-18.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Figure 5-18 Combining two N68E-22 cabinets
3. Remove the two connecting pieces from the front and back doorheads of the adjacent cabinets. Then, reinstall the connecting pieces, as shown in part 2 of Figure 5-18 . 4. At the bottom of the combined cabinets and in front of the column, use a level bar to
check whether the horizontal and vertical deviations of the row of cabinets meet the specifications, as shown in Figure 5-19. If the cabinet is not level, use a socket wrench to adjust the leveling foot.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Figure 5-19 Using a level bar to check the horizontal and vertical deviations
l Combining N68E-22 and N68-22 Cabinets
1. Remove the connecting pieces from the column inside the N68E-22 cabinet, rotate each of them by 180 degrees, and then reinstall them, as shown in Figure 5-17.
2. Remove the connecting piece from the middle top of the N68-22 cabinet, as shown in part 1 of Figure 5-20. Keep the removed M6x16 screws for future use.
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
Figure 5-20 Combining N68E-22 and N68-22 cabinets
3. Fix the special connecting pieces to the N68-22 cabinet, as shown in part 1 of Figure 5-20 .
4. Use M8x30 bolts to fix the special connecting pieces of the N68-22 cabinet and the connecting pieces at the column in the N68E-22 cabinet, as shown in part 1 of Figure 5-20 .
5. Remove the two connecting pieces from the front and back doorheads of the adjacent cabinets. Then, reinstall the connecting pieces, as shown in part 2 of Figure 5-20 . 6. At the bottom of the combined cabinets and in front of the column, use a level bar to
check whether the horizontal and vertical deviations of the row of cabinets meet the specifications. If the cabinet is not level, use a socket wrench to adjust the leveling foot of the N68E-22 cabinet.
----End
N68-22 Cabinet Installation Guide 5 Installing the N68E-22 Cabinet on the Concrete Floor
6 Installing the N68E-22 Cabinet on the ESD Floor
About This Chapter
This chapter describes how to install the N68E-22 cabinet on the ESD floor by using the N6X series support assembly.