Connecting the NFX250 to the Network
Connecting an NFX250 Device to a Network for Out-of-Band Management
Ensure that you have an appropriate cable available.
You can monitor and manage the NFX250 device using a dedicated management channel. NFX250 devices have one management port, Eight 1-Gigabit Ethernet RJ-45 ports, two 1-Gigabit Ethernet RJ-45 network/uplink ports, two 1-Gigabit Ethernet small form-factor pluggable (SFP) ports, and two 1/10-Gigabit Ethernet SFP+ ports. Use the management port to connect the NFX250 device to a network for out-of-band management.
To connect an NFX250 device to a network for out-of-band management (see Figure 1):
- Connect one end of the cable to the management port (labeled MGMT) on the NFX250 device.
- Connect the other end of the cable to the management switch (see Figure 1).

See Also
Connecting an NFX250 Device to a Management Console
Ensure that you have an RJ-45 to DB-9 rollover cable available.
We no longer include a DB-9 to RJ-45 cable or a DB-9 to RJ-45 adapter with a CAT5E copper cable as part of the device package. If you require a console cable, you can order it separately with the part number JNP-CBL-RJ45-DB9 (DB-9 to RJ-45 adapter with a CAT5E copper cable).
If your laptop or PC does not have a DB-9 plug connector pin and you want to connect your laptop or PC directly to the NFX250 device, use a combination of the RJ-45 cable and RJ-45 to DB-9 adapter and a USB to DB-9 plug adapter. You must provide the USB to DB-9 plug adapter.
NFX250 device has a console port with an RJ-45 connector. Use the console port to connect the device to a management console or to a console server.
To connect the NFX250 device to a management console (see Figure 2 and Figure 3):
- Connect one end of the Ethernet cable to the console port (labeled CON).
- Connect the other end of the Ethernet cable into the console server (see Figure 2) or management console (see Figure 3).


See Also
Connecting an NFX250 Device to a Management Console Using Mini-USB Type-B Console Port
Before you begin connecting an NFX250 device by using the Mini-USB Type-B console port:
Ensure that the USB to Serial driver is installed on the host machine. You can download the driver from https://webdownload.juniper.net/swdl/dl/secure/site/1/record/5029.html
Ensure that the hyper terminal 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
Ensure that you have the following parts and tools available:
1 mini-USB cable with Standard-A and Mini-USB Type- B (5-pin) connectors (not provided).
You can configure and manage NFX250 devices by using the RJ-45 console port or the Mini-USB Type-B console port. However, the console input will be active only on one port at a time—only one port will be set active at a time.
By default, the RJ-45 port is set as an active console port and the Mini-USB Type-B port is the passive console port. For information about configuring the console port type, see Configuring the Console Port Type (CLI Procedure).
If your laptop or PC does not have a DB-9 plug connector pin or RJ-45 connector pin, you can connect your laptop or PC directly to an NFX250 device by using a mini-USB cable that has a Standard-A USB connector on one end and a Mini-USB Type-B (5 pin) connector on the other end.
This section describes the process of connecting an NFX250 device to the management console by using the Mini-USB Type-B console port.
For information about configuring and managing an NFX250 device by using the RJ-45 console port, see Connecting an NFX250 Device to a Management Console.
To connect the NFX250 device to the console using Mini-USB Type-B console port:
- Connect the Standard-A connector of the mini-USB cable to the host machine (PC or Laptop).
- Connect the Mini-USB Type-B (5-pin) connector of the mini-USB cable to the Mini-USB Type-B console port (labeled CON) on the NFX250 device.
- Set the Mini-USB Type-B console port as the active console
port by using the command
port-type
. For information about configuring the console port type, see Configuring the Console Port Type (CLI Procedure). - Reboot the NFX250 device.
After the connection is established, the Mini-USB Type-B becomes the active console port. The host machine connected to the Mini-USB Type-B console port displays log messages and lets you control NFX250 device functionality through it.