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Connect the EX4400 to External Devices

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. Figure 1 shows the RJ-45 connector of the Ethernet cable.

Figure 1: RJ-45 Connector on an Ethernet CableRJ-45 Connector on an Ethernet Cable

You can monitor and manage these devices 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 (see Figure 2):

  1. Connect one end of the Ethernet cable to the management port on the device.
  2. Connect the other end of the Ethernet cable to the management device.
Figure 2: Connect a Device to a Network for Out-of-Band ManagementConnect a Device to a Network for Out-of-Band Management

Connect a Device to a Management Console Using an RJ‑45 Connector

Ensure that you have an Ethernet cable that has an RJ-45 connector at either end and an RJ-45-to-DB-9 serial port adapter.

Figure 3 shows the RJ-45 connector on the Ethernet cable.

Figure 3: RJ-45 Connector on an Ethernet Cable RJ-45 Connector on an Ethernet Cable
Note:
We no longer include the RJ-45 console cable with the DB-9 adapter as part of the device package. If the console cable and adapter are not included in your device package, or if you need a different type of adapter, you can order the following separately:
  • RJ-45 to DB-9 adapter (JNP-CBL-RJ45-DB9)
  • RJ-45 to USB-A adapter (JNP-CBL-RJ45-USBA)
  • RJ-45 to USB-C adapter (JNP-CBL-RJ45-USBC)

If you want to use RJ-45 to USB-A or RJ-45 to USB-C adapter you must have X64 (64-Bit) Virtual COM port (VCP) driver installed on your PC. See, https://ftdichip.com/drivers/vcp-drivers/ to download the driver.
Note:

If your laptop or desktop PC does not have a DB-9 plug connector pin and you want to connect your laptop or desktop PC directly to the device, use a combination of the RJ-45-to-DB-9 socket adapter and a USB-to-DB-9 plug adapter. You must provide the USB-to-DB-9 plug adapter.

You can configure and manage your network devices using a dedicated management channel. Each device has a console port that you can connect to using an Ethernet cable with an RJ-45 connector. Use the console port to connect the device to the console server or management console. The console port accepts a cable that has an RJ-45 connector.

To connect the device to a management console (see Figure 4 and Figure 5):

  1. Connect one end of the Ethernet cable to the console port (labeled CON, CONSOLE, or CON1) on the device.
  2. Connect the other end of the Ethernet cable to the console server (see Figure 4) or management console (see Figure 5).
Figure 4: Connect a Device to a Management Console Through a Console ServerConnect a Device to a Management Console Through a Console Server
Figure 5: Connect a Device Directly to a Management ConsoleConnect a Device Directly to a Management Console

Connect an EX4400 Switch to a Management Console by Using the USB-C Console Port

Before You Begin

Before you connect the switch by using the USB-C console port:

  • Ensure that the USB to serial driver is installed on the host machine.

  • Ensure that the HyperTerminal properties of the console server or laptop are set as follows:

    • Baud rate—9600

    • Flow control—None

    • Data—8

    • Parity—None

    • Stop bits—1

    • DCD state—Disregard

You will need:

  • One USB cable with USB-C connectors at both ends—not provided.

  • (If your laptop or desktop PC does not have a USB-C port) One USB-A to USB-C converter cable—not provided.

EX4400 switches have two console ports:

  • An RJ-45 console port on the rear panel that accepts a cable with an RJ-45 connector.

  • A USB-C console port on the front panel that accepts a USB cable with a USB-C connector.

You can log in to the switch and configure and manage the switch by using either of the console ports. The RJ-45 console port is enabled by default. However, you must configure the USB-C console port before you can use it to connect to the switch.

In this topic, you learn how to connect EX4400 switches to the management console by using the USB-C console port.

To connect the switch to the console by using the USB-C console port:

  1. Connect the host machine to the device directly by using the active console port or remotely by using the management interface.
  2. Connect one end of the USB cable to the USB-C or USB-A port your PC or laptop.
  3. Connect the other end of the USB cable to the USB-C console port on the front panel switch.
  4. Use the set system ports auxiliary type ansi configuration command to enable logging in to the switch by using the USB-C console port.
  5. Use the request system boot-console auxiliary command to see the boot logs on the console connected to the USB-C port.
    Note that only the Junos OS boot logs will be visible on the USB Type-C console.
  6. Reboot the switch. The boot logs and the login prompt appear on the console connected to the USB-C port.