FS N9550-32D Switch Hardware Guide

1.1.4 Components on the Front and Rear Panels

?️ Figure 1: N9550-32D—Front View

?️ Figure 2: N9550-32D—Rear View

?️ Figure 3: Components on the Front and Rear Panel of N9550-32D. This figure illustrates the front panel with numbered ports: 1 (32x 400G QSFP-DD), 2 (ToD Port), 3 (MGMT), 4 (Console), 5 (USB), 6 (2x 10G SFP+). The rear panel shows: 1 (1+1 Hot-swappable Power Supplies), 2 (5+1 Hot-swappable Smart Fans).

2.1.1 Floor Loading

• Ensure that the floor under the rack supporting the chassis is capable of supporting the combined weight of the rack and all the other components.

2.1.2 Airflow

• To ensure adequate airflow through the chassis, maintain a minimum clearance of 20 cm (7.87 in.) around air vents. Route the cables and power cords through the cable management brackets to avoid blocking air intake vents. Dust the equipment every three months to prevent blocking the ventilation openings on the housing.

2.1.3 Space

• You are advised to have a pathway of 0.8 meters (2.62 ft.) wide in the equipment room. This space ensures that you can remove the components and perform routing maintenance easily.
• The front and rear of the chassis must remain unobstructed to ensure adequate airflow and prevent overheating inside the chassis.

2.1.4 Temperature

To ensure normal operation and prolonged service life of the equipment, maintain an appropriate temperature in the equipment room. Otherwise, the equipment may be damaged.

• A high temperature can accelerate the aging process of insulation materials, greatly reducing the availability of the equipment and severely affecting its service life.

For the device's operating temperature requirements, please refer to the product datasheet.

ℹ️ Note: The operating temperature is measured at a point that is 1.5 m (4.92 ft.) above the floor and 0.4m (1.31 ft.) before the equipment with no protective plates in front or at the back of the equipment.

2.1.5 Humidity

To ensure normal operation and prolonged service life of the equipment, maintain an appropriate humidity in the equipment room. Otherwise, the equipment may be damaged.

• In an environment with a high relative humidity, the insulating material is prone to poor insulation or even electricity leakage.
• In an environment with a low relative humidity, the insulating strip may dry and shrink, resulting in screw loosening. Furthermore, internal circuits are prone to static electricity.

For the device's operating humidity requirements, please refer to the product datasheet.

ℹ️ Note: The operating humidity is measured at the point that is 1.5 m (4.92 ft.) above the floor and 0.4 m (1.31 ft.) before the equipment with no protective plates in front or at the back of the equipment.

2.1.6 Cleanliness

The indoor dust takes on a positive or negative static electric charge when falling on the switch, causing poor contact of the metallic joint. Such electrostatic adhesion may occur more easily when the relative humidity is low, not only affecting the service life of the switch, but also causing communication faults. The following table lists the requirements for the dust and particles in the equipment room:

Table 13. Dust and Particle Requirement

Apart from dust, there are also requirements on the salt, acid, and sulfide in the air of the equipment room. These harmful substances will accelerate metal corrosion and component aging. Therefore, the equipment room should be properly protected against harmful gases, such as sulfur dioxide and hydrogen sulfide. The following table lists limits on harmful gases.

Table 14. Gas Requirement

ℹ️ Note: The average value is measured over one week. The maximum value is the upper limit of the harmful gas measured in one week for up to 30 minutes every day.

2.1.7 System Grounding

A reliable grounding system is the basis for stable and reliable operation, which is indispensable for preventing lightning strikes and interference. Carefully check the grounding conditions at the installation site according to the grounding specifications, and complete grounding properly based on the site situation.

? Grounding: Safety Grounding: Ensure that the rack and power distribution system are securely grounded. Otherwise, electric shocks may occur when the insulation resistance between the power module and the chassis becomes small.

ℹ️ Note: The building should provide a protective ground connection to ensure that the equipment is connected to a protective earth.

? Grounding: Lightning Grounding: The surge protection system is an independent system consisting of a lightning rod, a downlead conductor, and a connector connected to the grounding system. The grounding system is usually used for power reference grounding and safety grounding of the rack.

? Grounding: EMC Grounding: Grounding for the EMC design includes shielded grounding, filter grounding, noise, interference suppression, and level reference.

The grounding resistance should be smaller than 1-ohm. Connect the grounding terminal to the ground before operating the equipment. There is a grounding stud in the lower left corner of the rear panel. They are pasted with a conspicuous label.

2.2.1 Console Port Connector Pinout Information

The console port on PicOS® devices is an RS-232 serial interface, using an RJ-45 connector to connect to a console management device. The default baud rate for the console port is 115200 baud.

2.2.1 RJ-45 Management Port Connector Pinout Information

The RJ-45 connector on PicOS® network devices provides the following pinout details for the management port.

Table 15. Pin Signal Definition Table for 1000BASE-T

3.1.1 Parts Inventory (Packing List) for a N9550-32D Switch

The switch shipment includes a packing list. Check the parts you receive with the switch against the items in the packing list.

Table 16. Inventory of Components Provided with a N9550-32D Switch

3.1.2 Mount the N9550-32D Switch on a Rack

Make sure the previously mentioned "2.1 Site Guidelines and Requirements" have been met before you begin the installation. Plan for the installation site, networking mode, power supply, and cabling in advance. Then, wear an ESD wrist strap, place the switch, and mount it onto the rack.

3.1.3 Mount the Chassis on the Workbench

If a standard 19-inch EIA rack is not available, mount the switch on a clean workbench.

• Lay the chassis flat on the workbench and ensure adequate airflow around the chassis.

Diagram showing chassis laid flat on a workbench.

3.2.1 Connect the N9550-32D Switch to Earth Ground

3.2.2 Connect Power to N9550-32D Switch

Wear an ESD-preventive wrist strap before proceeding with the following operation.

3.2.4 Connect the Power Cable

• Plug the AC power cord into the power port on the switch.
• Connect the other end of the power cord to an AC power source.

⚠️ Caution:

• Make sure the power socket is OFF before connecting the power cord.
• Use a 3-core power cord, with a minimum cross-sectional area of 1.5mm² or 14 AWG per pin.
• Use a 10A power cord for the AC power supply. Adopt the proper power socket and make sure that the AC power system in the equipment room is capable enough.

Diagram showing AC power cable connection to the switch.

3.3.1 Install a QSFP-DD Transceiver

Before you install a transceiver in a device, ensure that you have taken the necessary precautions for safe handling of lasers. Ensure that you have a rubber safety cap available to cover the transceiver.

The transceivers for FS devices are hot-removable and hot-insertable field-replaceable units (FRUs). You can remove and replace the transceivers without powering off the device or disrupting the device functions.

ℹ️ Note: After you insert a transceiver or after you change the media-type configuration, wait for 6 seconds for the interface to display operational commands.

To install a QSFP-DD transceiver:

• Wrap and fasten one end of an ESD wrist strap around your bare wrist, and connect the other end of the strap to the ESD point on the switch.
• Verify that a rubber safety cap covers the QSFP-DD transceiver.
• Position the transceiver in front of the port on the device so that the QSFP-DD connector faces the port.

3.3.2 Connect a Fiber-Optic Cable

Before you connect a fiber-optic cable to an optical transceiver installed in a device, ensure that you have taken the necessary precautions for safe handling of lasers.

To connect a fiber-optic cable to an optical transceiver installed in a device:

Laser Warning: Do not look directly into a fiber-optic transceiver or into the ends of fiber-optic cables. Fiber-optic transceivers and fiber-optic cables connected to transceivers emit laser light that can damage your eyes.

• If the fiber-optic cable connector is covered with a rubber safety cap, remove the cap. Save the cap.
• Remove the rubber safety cap from the optical transceiver. Save the cap.
• Insert the cable connector into the optical transceiver.

Diagram showing fiber-optic cable connection to a transceiver.

CAUTION:

• Do not bend fiber-optic cables beyond their minimum bend radius. An arc smaller than a few inches in diameter can damage the cables and cause problems that are difficult to diagnose.
• Do not let fiber-optic cables hang free from the connector. Do not allow fastened loops of cables to dangle, which stresses the cables at the fastening point.

3.4.1 Connect a Device to a Network for Out-of-Band Management

Ensure that you have an Ethernet cable that has an RJ-45 connector at either end.

You can monitor and manage a network device, such as a router or a switch, by using a dedicated management channel. Each device has a management port to which you can connect an Ethernet cable with an RJ-45 connector. Use the management port to connect the device to the management device.

To connect a device to a network for out-of-band management:

• Connect one end of the Ethernet cable to the management port on the device.
• Connect the other end of the Ethernet cable to the management device.

Diagram showing Ethernet cable connection for out-of-band management.

3.4.2 Connect a Device to a Management Console Using an RJ-45 Connector

You can configure and manage your network devices through a dedicated management channel, using the console port available on each device.

3.5.1 Default Configuration

We ship each N9550-32D switch programmed with a factory-default configuration that contains the values set for each configuration parameter. The default configuration file sets values for system parameters such as the system log and file messages.

When you commit changes to the configuration, a new configuration file is created that becomes the active configuration. You can always revert to the factory-default configuration.

This topic shows the factory-default configuration file of a N9550-32D switch:

system {
  login {
    announcement: ""
    user operator {
      class: "read-only"
    }
  }
  services {
    ssh {
      port: 22
      root-login: "deny"
      protocol-version: "v2"
      connection-limit: 20
      rate-limit: 20
      disable: false
      idle-timeout: 0
    }
  }
  inband {
    enable: false
  }
  syslog {
    local-file: "ram"
  }
  log-level: "warning"
  log-facility: 0
  timezone: "UTC"
}

3.5.2 Connect and Configure N9550-32D

The initial configuration of the switch requires the user to connect the terminal or computer to the switch's console port. Once the user accesses the switch and establishes the CLI (Command Line Interface) through a serial console connection, an IP address is assigned to the management port, and an IP route to the gateway is created. Keep in mind the following points:

• The console port provides local serial access to the switch.
• The Ethernet management port is used for out-of-band network management tasks. Before using the management port for the first time, you must assign an IP address to the port.