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NFX350 Cable Specifications and Pinouts

Cable Specifications for Console and Management Connections for the NFX350 Devices

Table 1 lists the specifications for the cables that connect the NFX350 devices to a management device.

Table 1: Cable Specifications for Console and Management Connections for the NFX350 Devices

Port on NFX350 Device

Cable Specification

Cable Supplied

Maximum Length

Device Receptacle

Console port

RS-232 (EIA-232) serial cable

One 7-foot (2.13-meter) long RJ-45 patch cable and RJ-45 to DB-9 adapter

7 feet (2.13 meters)

RJ-45

Management port

Category 5 cable or equivalent suitable for 1000BASE-T operation

One 7-foot (2.13-meter) long RJ-45 patch cable

328 feet (100 meters)

RJ-45

Mini-USB Type-B Console Port Specifications for an NFX350 Device

NFX350 Device has two: an RJ-45 port, and a Mini-USB port.

By default, the RJ-45 port is set as the active console port. It can display all the early boot and low-level message output and you can access the device through this port in the debugger prompt.

When the mini-USB console port cable is active, the RJ45 console port is deactivated. Either USB or RJ45 console is active at a time. For the mini-USB console port to be active, you must ensure that the USB to serial driver is installed in the device, where mini-USB console cable is connected.

The Mini-USB console port uses a Mini-B plug (5-pin) connector to connect to a console management device. The default baud rate for the console port is 9600 baud.

Table 2 provides the pinout information of the Mini-USB Type-B console port.

Table 2: Mini-USB Type-B Console Port Pinout Information for Devices

Pin

Signal

Description

1

VCC

+5 VDC

2

D-

Data -

3

D+

Data +

X

N/C

May be N/C, GND or used as an attached device presence indicator

4

GND

Ground

Console Port Connector Pinouts for NFX350 Devices

The console port (labeled CON) is an RS-232 serial interface that uses an RJ-45 connector to connect to a console management device. The default baud rate for the console port is 9600 baud.

Table 3 provides the pinout information for the RJ-45 console connector. An RJ-45 cable and RJ-45 to DB-9 adapter are supplied with the NFX350 device.

Note:

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 an NFX350 device, use a combination of the RJ-45 cable and RJ-45 to DB-9 adapter supplied with the device and a USB to DB-9 plug adapter. You must provide the USB to DB-9 plug adapter.

Table 3: Console Port Connector Pinouts for the NFX350 Device

Pin

Signal

Description

1

RTS Output

Request to send

2

DTR Output

Data terminal ready

3

TxD Output

Transmit data

4

Signal Ground

Signal ground

5

Signal Ground

Signal ground

6

RxD Input

Receive data

7

DCD Input

Data carrier detect

8

CTS Input

Clear to send

USB Port Specifications for an NFX350 Device

The following Juniper Networks USB flash drive has been tested and is officially supported for the USB port in the NFX350 devices:

  • RE-USB-4G-S—4-GB USB flash drive

CAUTION:

Any USB memory product not listed as supported for the NFX350 device has not been tested by Juniper Networks. The use of any unsupported USB memory product could expose your device to unpredictable behavior. Juniper Networks Technical Assistance Center (JTAC) can provide only limited support for issues related to unsupported hardware. We strongly recommend that you use only supported USB flash drives.

CAUTION:

Remove the USB flash drive before upgrading Junos OS or rebooting a NFX350 device. Failure to do so could expose your device to unpredictable behavior.

Note:

Executing the request system snapshot CLI command on a NFX350 device requires an external USB flash drive with at least 4 GB of free space. We recommend using the RE-USB-4G-S flash drive.

Note:

USB flash drives used with the NFX350 device must support USB 2.0 or later.

Management Port Connector Pinout Information for an NFX350 Device

The 1000BASE-T RJ-45 management port on an NFX350 device uses an RJ-45 connector to connect to a management device for out-of-band management.

Table 4 provides the pinout information of the RJ-45 management port connector.

Table 4: RJ-45 Management Port Connector Pinouts for the NFX350 Devices

Pin

Signal

Description

1

TRP1+

Transmit/receive data pair 1

2

TRP1–

Transmit/receive data pair 1

3

TRP2+

Transmit/receive data pair 2

4

TRP3+

Transmit/receive data pair 3

5

TRP3–

Transmit/receive data pair 3

6

TRP2–

Transmit/receive data pair 2

7

TRP4+

Transmit/receive data pair 4

8

TRP4–

Transmit/receive data pair 4

Network Port Connector Pinout Information for an NFX350 Device

A network port on an NFX350 device uses an RJ-45 connector to connect to a device.

The port uses an autosensing RJ-45 connector to support a 10/100/1000Base-T connection. Two LEDs on the port indicate link/activity on the port and the port status. See NFX350 Chassis.

Table 5 provides the pinout information for the RJ-45 connector. An RJ-45 cable, with a connector attached, is supplied with the switch.

Table 5: Network Port Connector Pinout Information for NFX350 Devices

Pin

Signal

Description

1

TRP1+

Transmit/receive data pair 1

Negative Vport (in PoE models)

2

TRP1-

Transmit/receive data pair 1

Negative Vport (in PoE models)

3

TRP2+

Transmit/receive data pair 2

Positive Vport (in PoE models)

4

TRP3+

Transmit/receive data pair 3

5

TRP3-

Transmit/receive data pair 3

6

TRP2-

Transmit/receive data pair 2

Positive Vport (in PoE models)

7

TRP4+

Transmit/receive data pair 4

8

TRP4-

Transmit/receive data pair 4

RJ-45 to DB-9 Serial Port Adapter Pinout Information for an NFX350 Device

The console port is an RS-232 serial interface that uses an RJ-45 connector to connect to a management device such as a PC or a laptop. If your laptop or PC does not have a DB-9 plug connector pin and you want to connect your laptop or PC to an NFX350 device, use a combination of the RJ-45 to DB-9 socket adapter supplied with the switch along with a USB to DB-9 plug adapter.

Table 6 provides the pinout information for the RJ-45 to DB-9 serial port adapter.

Table 6: RJ-45 to DB-9 Serial Port Adapter Pinout Information

RJ-45 Pin

Signal

DB-9 Pin

Signal

1

RTS

8

CTS

2

DTR

6

DSR

3

TXD

2

RXD

4

GND

5

GND

6

RXD

3

TXD

7

DSR

4

DTR

8

CTS

7

RTS