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Connecting the MX2020 Router to a Console or Auxiliary Device

To use a system console to configure and manage the Routing Engine, connect it to the appropriate CONSOLE port on the CB-RE interface. To use a laptop, modem, or other auxiliary device, connect it to the AUX port on the CB-RE interface. Both ports accept a cable with an RJ-45 connector. To connect a device to the CONSOLE port and another device to the AUX port, you must supply two separate cables.

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.
Warning:

The MX2020 router must be adequately grounded before powering on the console or auxiliary devices, (see MX2000 Router Grounding Specifications).

To connect a management console or auxiliary device:

  1. Turn off the power to the console or auxiliary device.
  2. Plug the RJ-45 end of the serial cable (see Figure 2) into the AUX port or CONSOLE port on the CB-RE interface. Figure 1 shows the ports. Table 1 describes the auxiliary and console ports.
  3. Plug the DB-9 socket end into the device's serial port.
    Note:

    For console devices, configure the serial port to the following values:

    • Baud rate—9600

    • Parity—N

    • Data bits—8

    • Stop bits—1

    • Flow control—none

Figure 1: Console and Auxiliary PortsConsole and Auxiliary Ports
Figure 2: Console and Auxiliary Cable ConnectorConsole and Auxiliary Cable Connector
Table 1: Console and Auxiliary Ports on the MX2020 CB-RE

Function No.

Label

Description

1

AUX

Connect a laptop, modem, or other auxiliary unit.

2

CONSOLE

Connect a laptop or console terminal to configure the MX2020 router.

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