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Connect the EX4100-H-12T to External Devices

This topic guides you on how to connect your EX4100-H-12T switch to external mangement or timing devices.

You can monitor and manage the EX4100-H-12T switch by using a dedicated management channel. Use the management port to connect your device to the management device.

You can also connect the EX4100-H-12T switch to external clocking and timing devices.

Connect the EX4100-H-12T to a Network for Out-of-Band Management

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

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

  1. Wrap and fasten one end of an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the other end of the strap to one of the ESD points on the chassis.
  2. Connect one end of the Ethernet cable to the management port on the device.
  3. Connect the other end of the cable to the management device.
    Figure 1: Connect Your Device to a Network for Out-of-Band Management Connect Your Device to a Network for Out-of-Band Management

Connect the EX4100-H-12T 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. You will also need the appropriate adapter (not provided) depending upon your console server or management console.

You can separately order the following adapters from Juniper Networks:

  • 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)

Note:

If you want to use the 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.

To connect the device to a management console:

  1. Wrap and fasten one end of an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the other end of the strap to one of the ESD points on the chassis.
  2. Connect one end of the Ethernet cable to the console port on the device.
  3. Connect the other end of the cable to the console server or PC.
    Figure 2: Connect Your Device to a Management Console Through a Console Server Connect Your Device to a Management Console Through a Console Server
    Figure 3: Connect Your Device Directly to a Management Console Connect Your Device Directly to a Management Console

Connect Your Device to a Management Console Using a USB-C Connector

Ensure that you have a USB cable that has a USB-C connector at either end. You will also need the appropriate adapter (not provided) depending upon your console server or management console.

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

By default, the RJ-45 is the active console port. You must configure the USB-C console port before using it. Set the HyperTerminal properties of the console server or management console as follows:

  • Baud rate—9600

  • Flow control—None

  • Data—8

  • Parity—None

  • Stop bits—1

  • DCD state—Disregard

To connect the device to a management console:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Connect one end of the USB cable to the console port on the device.
  3. Connect the other end of the cable to the console server or management console.
    Figure 4: Connect Your Device to a Management Console Through a Console Server Connect Your Device to a Management Console Through a Console Server
    Figure 5: Connect Your Device Directly to a Management Console Connect Your Device Directly to a Management Console
  4. Use the set system ports auxiliary type ansi 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.