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QFX10000 Console and Management Cable Specifications and Pinouts

QFX10000 Cable Specifications for Console and Management Connections

Table 1 lists the specifications for the cables that connect the QFX10000 line of switches to a management device.

Note:

The QFX10000 models can be configured with SFP management ports that support 1000BASE-SX transceivers. See The Hardware Compatibility Tool for more on the fiber-optic cables required for use with these transceivers.
Table 1: Cable Specifications for Console and Management Connections for the QFX10000 Line of Switches

Port on QFX Series 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

See Also

RJ-45 to DB-9 Serial Port Adapter Pinout Information

The console port on a Juniper Networks device is an RS-232 serial interface that uses an RJ-45 connector to connect to a management device such as a laptop or a desktop PC. 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 to the device, use a combination of the RJ-45 to DB-9 socket adapter along with a USB to DB-9 plug adapter.

Table 2 provides the pinout information for the RJ-45 to DB-9 serial port adapter.

Table 2: RJ-45 to DB-9 Serial Port Adapter Pinout Information

RJ-45 pin

Signal

DB-9 pin

Signal

1

NC

8

CTS

2

NC

6

DSR

3

TxD

2

RxD

4

GND

5

GND

6

RxD

3

TxD

7

DCD

4

DTR

8

NC

7

RTS

RJ-45 Management Port Connector Pinout Information

Table 3 provides the pinout information for the RJ-45 connector for the management port on Juniper Networks devices.

Table 3: RJ-45 Management Port Connector Pinout Information

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

Console Port Connector Pinout Information

The console port on a Juniper Networks device 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 4 provides the pinout information for the RJ-45 console connector.

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 a 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.
Table 4: Console Port Connector Pinout Information

Pin

Signal

Description

1

NC

No connect

2

NC

No connect

3

TxD Output

Transmit data

4

GND

Signal ground

5

GND

Signal ground

6

RxD Input

Receive data

7

DCD Input

Data carrier detect

8

NC

No connect

USB Port Specifications for the QFX Series

The following Juniper Networks USB flash drives have been tested and are officially supported for the USB port in the QFX Series:

  • RE-USB-1G-S—1-gigabyte (GB) USB flash drive (except QFX3100 Director device)

  • RE-USB-2G-S—2-GB USB flash drive (except QFX3100 Director device)

  • RE-USB-4G-S—4-GB USB flash drive

CAUTION:

Any USB memory product not listed as supported for the QFX Series 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 QFX Series device. Failure to do so could expose your device to unpredictable behavior.

Note:

Executing the request system snapshot CLI command on a QFX3500 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 QFX Series device must support USB 2.0 or later.

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