Cisco Nexus 7000 Series Hardware Installation and Reference Guide
Bias-Free Language
The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
This appendix describes the technical specifications for the Nexus 7000 system and includes these sections:
Environmental Specifications for the Cisco Nexus 7000 Series
Systems
lists the environmental specifications for the Cisco Nexus 7000 Series
systems.
Table 1. Environmental Specifications for the Cisco Nexus 7000 Series
Switches
Description
Cisco Nexus 7004
Cisco Nexus 7009
Cisco Nexus 7010
Cisco Nexus 7018
Temperature
Ambient operating
32 to 104ºF (0 to 40ºC)
Ambient nonoperating
–40 to 158ºF (–40 to 70ºC)
Relative humidity
Ambient (noncondensing) operating
5 to 90% (45 to 50% recommended)
Ambient (noncondensing)
nonoperating and storage
5 to 95%
Altitude
Operating
–500 to 13,000 feet (–150 to
4,000 meters)
Storage
–1,000 to 30,000 feet (–305 to
9,144 meters)
Noise
Sound pressure levels
Without air filter
70 dBA
63.6 dBA
67.2 dBA
65.0 dBA
With air filter
—
—
70.2 dBA
—
Sound power levels
Without air filter
83 dBA
72.5 dBA
78.9 dBA
74.2 dBA
With air filter
—
—
81.7 dBA
—
Physical Specifications for the Cisco Nexus 7000 Series
Chassis
The physical specifications differ for the Cisco Nexus 7000 Series
chassis depending on the model that you are installing and the type of
installation you are doing (you can front mount all models but you can
optionally do a center mount of the Cisco Nexus 7004 and 7009 chassis).
Table 1
lists the physical specifications for each model and installation type.
Table 2. Physical Specifications for Cisco Nexus 7000 Series Chassis
1 Width is also the minimal clearance required between the two vertical mounting rails inside the rack or cabinet.
2 Front depth is also the minimal clearance required between the front mounting rails and the inside of the front of the rack
or cabinet. For all switches, this includes 7 inches (17.8 cm) of space for cabling. For the Cisco Nexus 7009 center-mounted
chassis, this distance also includes 6 inches of the chassis which is offset to the front by the center-mount bracket.
3 Rear depth is also the clearance required between the front-mounting rails and the inside of the rear of the rack or cabinet.
For front mounted switches, this is the same as the depth of the chassis. For a center-mounted Cisco Nexus 7009 switch, this
is 6 inches (15.2 cm) less than the depth of the chassis, which is offset to the front.
4 Height is also the clearance required between the top of the bottom support bracket and the top of the chassis that you are
installing. If you are installing another chassis above this chassis, its bottom-support brackets must be positioned above
this clearance area.
The weights and quantities are listed in the following tables:
The weights in these tables do not include the rack or cabinet that
holds the chassis or the interface and power cables. For those weights, see the
documentation provided by the manufacturers of those components.
Table 3. Weights and Quantities for the Cisco Nexus 7004 Switch Components
Component
Weight per Unit
Quantity
Chassis
45.0 lb (20.0 kg)
1
Supervisor modules
—
1 or 2 (must be same model)
Supervisor 2 (N7K-SUP2)
10.4 lb (4.7 kg)
Supervisor 2 Enhanced (N7K-SUP2E)
11.7 lb (5.3 kg)
F2 I/O Modules
—
1 or 2(can mix I/O module types)
48-port 1- and 10-Gigabit Ethernet I/O module (N7K-F248XP-25 and N7K-F248XP-25E)
14.0 lb (6.4 kg)
48-port 1- and 10-GBASE-T I/O module (N7K-F248XT-25E)
14.0 lb (6.4 kg)
F3 I/O Modules
—
48-port 1- and 10-Gigabit Ethernet I/O module (N7K-F348XP-25)
32-port 10-Gigabit Ethernet I/O module with XL option (N7K-M132XP-12L)
17.0 lb (7.7 kg)
8-port 10-Gigabit Ethernet I/O module with XL option (N7K-M108X2-12L)
14.0 lb (6.4 kg)
M2 I/O Modules
—
24-port 10-Gigabit Ethernet I/O module with XL option (N7K-M224XP-23L)
16.5 lb (7.5 kg)
6-port 40-Gigabit Ethernet I/O module with XL option (N7K-M206FQ-23L)
16.5 lb (7.5 kg)
2-port 100-Gigabit Ethernet I/O module with XL option (N7K-M202CF-22L)
17.0 lb (7.7 kg)
M3 I/O Modules
—
48-port 1- and 10-Gigabit Ethernet I/O module with XL option (N7K-M348XP-25L)
12 lb (5.44 kg)
24-port 40-Gigabit Ethernet I/O module with XL option (N7K-M324FQ-25L)
12 lb (5.44 kg)
Service Modules
—
0 or 1
NAM (N7K-SM-NAM-K9)
17.9 lbs. (8.1 kg)
Fabric Modules
—
For F2 I/O, use 5.For F1, M1, and M2 I/O, use 3 to 5.
Fabric-1 module (N7K-C7018-FAB-1)
7.5 lb (3.4 kg)
Fabric-2 module (N7K-C7018-FAB-2)
7.5 lb (3.4 kg)
Fan tray (N7K-C7018-FAN)
25.8 lb (11.7 kg)
2
Power Supplies
—
6-kW AC power supply unit (N7K-AC-6.0KW)
18 lb (8.2 kg)
2 to 4 (can mix power supply types)
7.5-kW AC power supply unit (N7K-AC-7.5KW-INT and N7K-AC-7.5KW-US)
26 lb (11.8 kg)
6-kW DC power supply unit (N7K-DC-6.0KW)
21 lb (9.5 kg)
DC Power Interface Unit
5 lb (2.3 kg)
0 to 2
Optional Components
—
—
Front door (optional)
25 lb (11.3 kg)
0 or 1
Power Specifications for the Cisco Nexus 7000 Series Switches
The number of power supplies that a Cisco Nexus 7000 Series switch requires depends on the quantities and types of modules
that you include in the switch chassis. the type of power supply unit that you are using, and the power redundancy mode that
you are using.
The following topics explain how to calculate the switch power requirements and the amount of power available for each type
of power supply configuration mode:
Power Requirements for Switch Components
To determine the power requirements of the Cisco Nexus 7000 Series
switches, add the power requirements of each of its components. For each
component, multiply the number of its modules by its maximum or typical power
requirement. To find the quantities and power requirements for each Cisco Nexus
7000 Series switch, see the following tables:
32-port 10-Gigabit Ethernet I/O module with XL option
(N7K-M132XP-12L)
750 W
611 W
8-port 10-Gigabit Ethernet I/O module with XL option
(N7K-M108X2-12L)
650 W
520 W
M2 I/O Modules
—
—
2-port 100-Gigabit Ethernet I/O module with XL option
(N7K-M202CF-22L)
795 W
690 W
6-port 40-Gigabit Ethernet I/O module with XL option
(N7K-M206FQ-23L)
795 W
720 W
24-port 10-Gigabit Ethernet I/O module with XL option
(N7K-M224XP-23L)
795 W
720 W
M3 I/O Modules
—
—
48-port 1-/10-Gigabit Ethernet I/O modules with XL
option(N7K-M348XP-25L)
525 W
400 W
24-port 40-Gigabit Ethernet I/O modules with XL
option(N7K-M324FQ-25L)
750 W
600 W
Fabric Modules
3 to 5 (same type)
—
—
Fabric-1 module (N7K-C7018-FAB-1)
100 W
90 W
Fabric-2 module (N7K-C7018-FAB-2)
150 W
110 W
Fan Trays (N7K-C7018-FAN)
2
—
—
All fan trays (total)
1000 W
569 W
Power Supply Configuration Modes
You can configure one of the following power modes to either use the
combined power provided by the installed power supplies or to provide power
redundancy when there is a power loss:
Combined mode—Provides the
maximum amount of available power by utilizing the combined power output from
all installed power supplies for switch operations. This mode does not provide
redundancy.
Power-supply redundancy
mode—Allows you to replace a power supply during switch operations. All power
supplies are active. The available power is calculated as the least amount of
power available from all but one of the power supplies (N+1). The reserve power
is the amount of power output by the power supply that can output the most
power. For example, if three power supplies output 3 kW, 6 kW, and 6 kW, the
available power is 9 kW (3 kW + 6 kW) and the reserve power is 6 kW.
Input source redundancy
mode—Takes power from two electrical grids so that if one grid goes down, the
other grid can provide the power needed by the switch. For the Cisco Nexus 7004
chassis, each grid powers half of the power supplies. For the Cisco Nexus 7009,
7010, and 7018 chassis, each grid powers half of each power supply (grid A is
connected to the Input 1 receptacle on each power supply and grid B is
connected to the Input 2 receptacle on each power supply). The available power
is the amount of power output by the portions of the power supplies that are
connected to the same grid. For example, if three power supplies are connected
to a 110-V grid and a 220-V grid, each power supply outputs 1.2 kW for the
110-V grid and 3.0 kW for the 220-V grid. The available power would be 3.6 kW
(1.2 kW + 1.2 kW + 1.2 kW) and the reserve power would be 9.0 kW (3.0 kW + 3.0
kW + 3.0 kW).
Full redundancy
mode—Provides both power-supply redundancy and input-source redundancy. This
mode allows you to replace a power supply without interrupting switch
operations or continue powering the switch if one of two grids goes down. The
available power is the lesser amount of output power for power supply
redundancy or input source redundancy.
The amount of power available for use with your Cisco Nexus 7000 Series
switch depends on the number of power supplies, input voltage used, and the
power mode used. To determine the amount of available power for the power
supplies, see the following tables:
7 The Cisco Nexus 7018 switch uses up to four 6-kW power supplies, the Cisco Nexus 7010 switch uses up to three 6-kW power supplies,
and the Cisco Nexus 7009 uses up to two 6-kW power supplies.
Table 14. Power Availability for 7.5-kW AC Power Supplies
8 The Cisco Nexus 7018 switch uses up to four 7.5-kW power supplies, the Cisco Nexus 7010 switch uses up to three 7.5-kW power
supplies, and the Cisco Nexus 7009 uses up to two 7.5-kW power supplies.
Table 15. Power Availability for 3.0-kW DC Power Supplies
11 The Cisco Nexus 7018 switch uses up to four 6-kW power supplies, the Cisco Nexus 7010 switch uses up to three 6-kW power supplies,
and the Cisco Nexus 7009 uses up to two 6-kW power supplies.
Power Supply Cable Specifications
For power supply cable specifications, see the following tables:
Note
If you do not order the optional power cord with the system, you are responsible for selecting the appropriate power cord
for the product. Using a non-compatible power cord with this product may result in electrical safety hazard. Orders delivered
to Argentina, Brazil, and Japan must have the appropriate power cord ordered with the system.
Table 18. 3-kW and 6-kW AC Power Supply Power Cords
Locale
Power Cord Part Number
Cord Set Rating
Power Cord Reference Illustration
Australia and New Zealand
CAB-AC-16A-AUS
16A, 250 VAC
Peoples Republic of China
CAB-AC-16A-CH
16A, 250 VAC
Continental Europe
CAB-AC-2500W-EU
16A, 250 VAC
International
CAB-AC-2500W-INT
16A, 250 VAC
Israel
CAB-AC-2500W-ISRL
16A, 250 VAC
Japan and North America (non locking) 200-240 VAC operation
CAB-9K16A-US1
16A, 250 VAC
Japan and North America (locking) 200-240 VAC operation
CAB-AC-C6K-TWLK
16A, 250 VAC
Japan and North America 100-120 VAC operation
CAB-7513AC
16A, 250 VAC
Korea
CAB-9K16A-KOR
16A, 250 VAC
Power distribution unit (PDU)
CAB-C19-CBN
16A, 250 VAC
Switzerland
CAB-ACS-16
16A, 250 VAC
Table 19. 3.5-kW HVAC/HVDC Power Supply AC Power Cords
Locale
Power Supply Part Number
Cisco Part Number (CPN)
Length
Cord rating
Power cord reference illustration
Argentina
CAB-AC-16A-SG-AR
37-1649-01
14' 0" (4.26 m)
16A, 250 VAC
Australia and New Zealand
CAB-AC-16A-SG-AZ
37-1661-01
14' 0" (4.26 m)
16A, 250 VAC
Brazil
CAB-AC-16A-SG-BR
37-1650-01
14' 0" (4.26 m)
16A, 250 VAC
Peoples Republic of China
CAB-AC-16A-SG-CH
37-1655-01
14' 0" (4.26 m)
16A, 250 VAC
Continental Europe
CAB-AC-16A-SG-EU
37-1660-01
14' 0" (4.26 m)
16A, 250 VAC
India
CAB-AC-16A-SG-IND
37-1648-01
14' 0" (4.26 m)
16A, 250 VAC
International
CAB-AC-16A-SG-IN
37-1659-01
14' 0" (4.26 m)
16A, 250 VAC
Israel
CAB-AC-16A-SG-IS
37-1658-01
14' 0" (4.26 m)
16A, 250 VAC
Italy
CAB-AC-16A-SG-IT
37-1651-01
14' 0" (4.26 m)
16A, 250 VAC
North America (non locking) 110 VAC operation
CAB-AC-20A-SG-US
37-1662-01
14' 0" (4.26 m)
20A, 110 VAC
North America (locking) 125 VAC operation
CAB-AC-20A-SG-US1
37-1652-01
14' 0" (4.26 m)
20A, 125 VAC
North America (non locking) 200-240 VAC operation
CAB-AC-20A-SG-US2
37-1657-01
14' 0" (4.26 m)
20A, 250 VAC
North America (locking) 200-240 VAC operation
CAB-AC-20A-SG-US3
37-1656-01
14' 0" (4.26 m)
20A, 250 VAC
North America 277 VAC operation
CAB-AC-20A-SG-US4
37-1645-01
14' 0" (4.26 m)
20A, 277 VAC
North America Cabinet Jumper Power distribution unit (PDU)
You must provide each Cisco Nexus 7000 Series switch with adequate clearance for installation, maintenance, cabling, and airflow.
Installation clearance includes the cold aisle spacing required in front of the rack or cabinet to allow you to move the switch
with a mechanical lift to its rack or cabinet. Maintenance clearance is the hot or cold aisle spacing required to replace
supervisor, I/O, fabric, fan, and power supply modules. Cabling clearance provides the required space in front of the chassis
(often within a cabinet) for cables to bend and connect to the chassis. Airflow clearance is typically the spacing on the
left or right of the chassis for side-to-side airflow into and out of the chassis. If a chassis has front-to-back airflow,
it uses the maintenance clearance for airflow instead of airflow clearance on the sides of the chassis.
This section includes the following topics:
Cisco Nexus 7004 Chassis Clearances
The Cisco Nexus 7004 chassis requires front clearance for cable
management and maintenance, right side clearance for cooling air intake, and an
unobstructed rear for exhausting air to the hot aisle behind the chassis. For
the front, the cable management frames require 7.5 inches (19.1 cm) of
clearance in front of the mounting rails and an additional 26 inches (66.0 cm)
in front of the cable management frames or the cabinet door for maintenance. If
you install the chassis with the optional center-mount bracket in place of the
standard front-mount bracket, you must add 5.7 inches (14.4 cm) to the front
clearance in front of the mounting rails on the rack. For cabinet
installations, we recommend a right-side clearance of 11 inches (27.9 cm)
between the switch and the inside of the cabinet. For rack installations, we
recommend a right-side clearance of either 6 inches (15.2 cm) between racks or
11 inches (27.9 cm) between the chassis and a wall. The rear of the chassis
must be unobstructed and open to the hot aisle in back of the switch for
airflow exhaust.
Clearances Required for the Cisco Nexus 7004 in a Four-Post Rack with Front-Mount Brackets shows the
required clearances for a chassis in a four-post rack with a front-mount
installation.
Clearances Required for the Cisco Nexus 7004 in a Two-Post Rack with Front-Mount Brackets shows the
required clearances for a chassis in a two-post rack with a front-mount
installation.
Clearances Required for the Cisco Nexus 7004 in a Two-Post Rack with Center-Mount Brackets shows the
required clearances for chassis in a two-post rack with a center-mount
installation.
1
Chassis
10
Chassis width
2
Cable management frames
11
Right side clearance recommended for cabinet installations:
Use 11 inches
(27.9 cm).
3
Vertical rack-mount posts
12
Right side clearance recommended for open rack installations:
If next to
another open rack, use 6 inches (15.2 cm) between racks.
If next to a wall, use 11 inches (27.9 cm) between the
chassis and the wall.
4
Vertical rack-mount posts for neighboring rack
13
No rear clearance required but the rear must be open to the
hot aisle to exhaust air
5
Inside of cabinet (no left side clearance required)
14
Airflow clearance required between the chassis and inside of
cabinet (if a cabinet is used)
6
Air intake from cold aisle for power supplies
15
Chassis depth
7
Air intake from cold aisle for the supervisor and I/O modules
16
Clearance required between the front of the chassis and the
inside of the cabinet (if used) or the edge of the cold aisle (if no cabinet)
for the cable management frames and the optional front doors
8
Air exhaust to hot aisle for all modules and power supplies
17
Front service clearance required for installing the chassis
and replacing the modules
9
No left side clearance required (no airflow on left side)
1
Cisco Nexus 7004 chassis
8
No left side clearance required (no airflow on left side)
2
Cable management frames
9
Chassis width.
3
Vertical rack-mount posts
10
Right side clearance recommended for open rack installations:
If next to another open rack, use 6 inches (15.2 cm)
between racks.
If next to a wall, use 11 inches (27.9 cm) between the
chassis and the wall.
4
Vertical rack-mount posts for neighboring racks
11
No rear clearance required but the rear must be open to the
hot aisle to exhaust air
5
Air intake from cold aisle for power supplies
12
Chassis depth
6
Air intake from cold aisle for the supervisor and I/O modules
13
Clearance required between the front of the chassis and the
inside of the cabinet for the cable management frames and the optional front
door
7
Air exhaust to hot aisle for all modules and power supplies
14
Front clearance required for installing the chassis and
replacing the modules
1
Cisco Nexus 7004 chassis
8
No left side clearance required (no airflow on left side)
2
Cable management frames
9
Chassis width
3
Vertical rack-mount posts
10
Right side clearance recommended for open rack installations:
If next to another open rack, use 6 inches (15.2 cm)
between racks.
If next to a wall, use 11 inches (27.9 cm) between chassis
and wall.
4
Vertical rack-mount posts for neighboring rack
11
No rear clearance required but the rear must be open to the
hot aisle to exhaust air
5
Air intake from cold aisle for power supplies
12
Distance from front of vertical rack-mount posts to rear of
chassis
6
Air intake from cold aisle for the supervisor and I/O modules
13
Clearance required between the front of the chassis and the
inside of the chassis for the cable management frames and the optional front
doors
7
Air exhaust to hot aisle for all modules and power supplies
14
Front service clearance required for installing the chassis
and replacing the modules
Cisco Nexus 7009 Chassis Clearances
The Cisco Nexus 7009 chassis has different clearance requirements for
installations with four-post racks or cabinets, two-post racks with front-mount
brackets, and two-post racks with center-mount brackets.
Cabling area of 7.5
inches (19.1 cm) between the front of the chassis and the inside surface of the
cabinet or rack (this area can include the optional cable management frames)
Maintenance area of 24 inches (61.1 cm) between the front of the
rack or cabinet and the next object in the cold aisle.
Note
You might need to increase the maintenance area to accommodate a
wide mechanical lift used to move the chassis to or from the rack.
Rear clearance includes both of the following:
Cabling area of 7 inches (17.8 cm) between the rear of the
chassis and the inside surface of the cabinet or rack
Maintenance area of 24 inches (61.1 cm) between the rear of the
rack or cabinet and the next object in the hot aisle
Side clearance of 11 inches (27.9 cm) for air flow on each side of
the chassis.
1
Cisco Nexus 7009 chassis
10
Left side clearance required with an unobstructed opening to
the hot aisle to exhaust air
2
Cable management frames
11
Chassis width
3
Vertical rack-mount post
12
Side clearance recommended for cabinet installations:
use 11 inches (27.9 cm)
4
Vertical rack-mount post for neighboring rack
13
Side clearance recommended for open rack installations:
If next to another open rack, use 6 inches (15.2 cm).
If next to a wall, use 11 inches (27.9 cm).
5
Nearest object or inside of cabinet
14
Rear service clearance required to replace fan trays and
fabric modules
6
Air intake from cold aisle for the power supplies
15
Airflow clearance required between the chassis rear and
inside of cabinet (if used)
7
Air intake from cold aisle for the supervisor, fabric, and
I/O modules
16
Chassis depth
8
Air exhaust to hot aisle for power supplies
17
Clearance required between the front of the chassis and the
inside of the cabinet (if used) or edge of cold aisle (if no cabinet) for the
cable management frames and the optional front doors
9
Air exhaust to hot aisle for the supervisor, fabric, and I/O
modules
18
Front clearance required for installing the chassis and
replacing the modules
Front clearance of 45.5
inches (115.6 cm) for both of the following:
Cabling area of 7.5
inches (19.1 cm) between the front of the chassis and the inside of the cabinet
or front of the rack
Maintenance area of 38 inches (96.5 cm) of cold-aisle passageway
in front of the rack or cabinet
Note
You might need to increase the maintenance area to accommodate a
wide mechanical lift used to move the chassis to or from the rack.
Rear clearance of 35 inches (88.9 cm) for both of the following:
Airflow area of 5 inches (12.7 cm) inside of the cabinet or rack
Maintenance area of 30 inches (76.2 cm) of hot-aisle passageway
behind the rack or cabinet
1
Cisco Nexus 7010 chassis
8
Chassis width
2
Cable management system
9
No right side clearance required (no airflow on right side)
3
Vertical rack-mount posts
10
Rear service clearance required to replace fan trays and
fabric modules
4
Inside of cabinet (no side clearance required)
11
Airflow clearance required between the chassis and inside of
cabinet (if used)
5
Air intake from cold aisle for all modules and power supplies
12
Chassis depth, which includes the fan tray handles at the
rear of the chassis
6
Air exhaust to hot aisle for all modules and power supplies
13
Clearance required between the front of the chassis and the
inside of the cabinet (if used) or edge of the cold aisle (if no cabinet) for
the cable management frames and the optional front doors
7
No left side clearance required (no airflow on left side)
14
Front service clearance required for installing the chassis
and replacing the modules
Front clearance of 45
inches (114.3 cm) for both of the following:
Cabling area of 7.5
inches (19.1 cm) between the front of the chassis and the inside of the cabinet
or front of the rack
Maintenance area of 38 inches (96.5 cm) between the front of the
rack or cabinet and the next rack, cabinet, or wall in the cold aisle
(additional area might be needed for a larger mechanical lift used to move the
chassis)
Rear clearance of 35 inches (88.9 cm) for both of the following:
Airflow area of 5 inches (12.7 cm) inside a cabinet (if used)
Maintenance area of 30 inches (76.2 cm) of hot-aisle passageway
behind the rack or cabinet
Side clearance recommendation depends on whether a cabinet or rack
is used:
For cabinet installations, use 11 inches (27.9 cm) between the
chassis and inside of the cabinet.
For rack installations, use either 11” (27.9 cm) between the
chassis and a wall or 6” (15.2 cm) between racks.
1
Cisco Nexus 7018 chassis
11
Side clearance recommended for cabinet installations::
Use 11 inches (27.9 cm)
2
Cable management frames
12
Chassis width
3
Vertical rack-mount post
13
Side clearance recommended for cabinet installations::
Use 11 inches (27.9 cm)
4
Vertical rack-mount post for neighboring rack
14
Side clearance recommended for open rack installations:
If next to another open rack, use 6 inches (15.2 cm).
If next to a wall, use 11 inches (27.9 cm)
5
Nearest object or inside of cabinet (side clearance required
for airflow)
15
Rear service clearance required to replace fan trays and
fabric modules
6
Air intake from cold aisle for the power supplies
16
Airflow clearance required between the chassis and inside of
cabinet (cabinet installations only)
7
Air intake from cold aisle for the supervisor, fabric, and
I/O modules
17
Chassis depth
8
Air exhaust to hot aisle for the power supplies
18
Clearance required between the front of the chassis and the
inside of the cabinet (cabinet installations) or edge of the cold aisle (rack
installations) for the cable management frames and the optional front door
9
Air exhaust to hot aisle for the supervisor, fabric, and I/O
modules
19
Front service clearance required for installing the chassis
and replacing the modules
10
Side clearance recommended for open rack installations:
If next to another open rack, use 6 inches (15.2 cm).
If next to a wall, use 11 inches (27.9 cm).
Facility Cooling Requirements
The Cisco Nexus 7000 Series switches dissipate considerable power that generates much heat. The following is the heat dissipation
requirement for these switches:
Cisco Nexus 7004 dissipates up to 9737 BTUs per hour
Cisco Nexus 7009 dissipates up to 28,101 BTUs per hour
Cisco Nexus 7010 dissipates up to 35,162 BTUs per hour
Cisco Nexus 7018 dissipates up to 51,195 BTUs per hour
Chassis Airflow
The Cisco Nexus 7000 Series switches are designed to work in a
hot-aisle/cold-aisle environment using front-to-back, side-to-side, or
side-to-back airflow. Each of these switches uses one of the following airflow
directions:
The Cisco Nexus 7004 switch
uses side-to-back airflow to cool its modules and front-to-back airflow to cool
its power supplies as shown in
Airflow for the Cisco Nexus 7004 Chassis. This
switch requires right-side clearance for airflow into the chassis.
The Cisco Nexus 7009 switch
uses side-to-side airflow to cool its modules and front-to-back airflow to cool
its power supplies as shown in
Airflow for the Cisco Nexus 7009 Chassis. This
switch requires right- and left-side clearance for airflow into and out of the
chassis.
The Cisco Nexus 7018 switch uses side-to-side airflow to cool its
modules and front-to-back airflow to cool its power supply units as shown in
Airflow for the Cisco Nexus 7018 Chassis. This
switch requires right- and left-side clearance for airflow into and out of the
chassis.
1
Right side-to-rear airflow for cooling supervisor and I/O
modules
3
Exhaust out the rear to the hot aisle
2
Front-to-rear airflow for cooling power supplies
need to insert 330517.jpg. this image is found in WEM and not in Astoria.
1
Airflow for cooling the supervisor modules, I/O modules, and
fabric modules
2
Airflow for cooling the power supply units
1
Airflow for cooling the supervisor and I/O modules
3
Airflow for cooling the power supply units
2
Airflow for cooling the fabric modules
1
Airflow for cooling the supervisor and I/O modules
3
Airflow for cooling the power supply units
2
Airflow for cooling the fabric modules
For the Cisco Nexus 7004 switch, you can route cables on the left or
right side without interfering with coolant airflow, which goes in on the right
side. Be sure to otherwise leave the right side unblocked so that cool air can
flow from the cold aisle in the front to the chassis.
To allow for the Cisco Nexus 7009 and 7018 switches to take in air from
the cold aisle and floor on the right side, you should route cables on the left
front side of the switch. If necessary, you can route cables on the upper right
front side of the chassis, which leaves the lower right side open to cooling
air from the cold aisle in front of the chassis. By having the cables on the
left side and leaving the left rear side unobstructed, the exhaust is directed
to the hot aisle in back.
For the clearances required on each side of the switch, see the
Chassis Clearances.