Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 
ON THIS PAGE
 

QFX5241-32OD Management Cable Specifications and Pinouts

Cable Specifications for Console and Management Connections for the QFX Series

Table 1 lists the specifications for the cables that connect the QFX Series switch to a management device.

Note:

The QFX Series switches have small form-factor pluggable (SFP) management ports that support 1000BASE-SX transceivers. QFX switches come with a RJ-45 management port, and support 10-Gbps speed. See the Hardware Compatibility Tool for more information about the fiber-optic cables required for use with these transceivers.
Table 1: Cable Specifications for Console and Management Connections for the QFX Series

Port on QFX Series Device

Cable Specification

Maximum Length

Device Receptacle

Console port

RS-232 (EIA-232) serial cable

7 ft (2.13 m)

RJ-45

Management port

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

328 ft (100 m)

RJ-45
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.

RJ-45 Management Port Connector Pinout Information

Table 2 provides the pinout information for the RJ-45 connector for the management port on Juniper Networks devices.

Table 2: 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 Pinouts for the QFX Series

The console port (labeled CON or CONSOLE) 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. You can also use a RJ45 to USB 2.0 Type-A cable and a RJ45 to USB 2.0 Type-C cable.

Table 3 provides the pinout information for the RJ-45 console connector.

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 a QFX Series device, use a combination of an RJ-45 to DB-9 adapter and a USB to DB-9 plug adapter. You must provide the USB to DB-9 plug adapter.
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.
Table 3: Console Port Connector Pinouts for the QFX Series

Pin

Signal

Description

3

TxD Output

Transmit data

4

Signal Ground

Signal ground

5

Signal Ground

Signal ground

6

RxD Input

Receive data

OSFP Port Connector Pinout Information

Table 4 provides the pinout mapping for Octal small form factor pluggable (OSFP) port connectors.

Table 4: OSFP Network Port Pinout Mapping

Pin

Symbol

Description
1 GND Ground
2 TX2p Transmitter data non-inverted CML-I
3 TX2n Transmitter data inverted CML-I
4 GND Ground
5 TX4p Transmitter data non-inverted CML-I
6 TX4n Transmitter data inverted CML-I
7 GND Ground
8 TX6p Transmitter data non-inverted CML-I
9 TX6n Transmitter data inverted CML-I
10 GND Ground
11 TX8p Transmitter data non-inverted CML-I
12 TX8n Transmitter data inverted CML-I
13 GND Ground
14 SCL 2-wire serial interface clock LVCMOS-I/O
15 VCC +3.3V power
16 VCC +3.3V power
17 LPWn/PRSn Low-power mode/module present
18 GND Ground
19 RX7n Receiver data inverted CML-O
20 RX7p Receiver data non-inverted CML-O
21 GND Ground
22 RX5n Receiver data inverted CML-O
23 RX5p Receiver data non-inverted CML-O
24 GND Ground
25 RX3n Receiver data inverted CML-O
26 RX3p Receiver data non-inverted CML-O
27 GND Ground
28 RX1n Receiver data inverted CML-O
29 RX1p Receiver data non-inverted CML-O
30 GND Ground
31 GND Ground
32 RX2p Receiver data non-inverted CML-O
33 RX2n Receiver data inverted CML-O
34 GND Ground
35 RX4p Receiver Data Non-Inverted CML-O
36 RX4n Receiver data inverted CML-O
37 GND Ground
38 RX6p Receiver data non-inverted CML-O
39 RX6n Receiver data inverted CML-O
40 GND Ground
41 RX8p Receiver data non-inverted CML-O
42 RX8n Receiver data inverted CML-O
43 GND Ground
44 INT/RSTn Module interrupt/module reset
45 VCC +3.3V power
46 VCC +3.3V power
47 SDA 2-wire serial interface data LVCMOS-I/O
48 GND Ground
49 TX7n Transmitter data inverted CML-I
50 TX7p Transmitter data non-inverted CML-I
51 GND Ground
52 TX5n Transmitter data inverted CML-I
53 TX5p Transmitter data non-inverted CML-I
54 GND Ground
55 TX3n Transmitter data inverted CML-I
56 TX3p Transmitter data non-inverted CML-I
57 GND Ground
58 TX1n Transmitter data inverted CML-I
59 TX1p Transmitter data non-inverted CML-I
60 GND Ground

SFP, SFP+, and SFP28 Port Connector Pinout Information

Table 5 provides the pinout mapping for small-form factor pluggable (SFP) connectors, SFP+ connectors, and SFP28 connectors.

Table 5: SFP, SFP+, and SFP28 Port Connector Pinout Mapping

Pin

Symbol

Description

1

VeeT

Transmitter ground

2

TX_Fault

Transmitter fault indication

3

TX_Disable

Optical output disabled when high

4

SDA

2-wire serial interface data (MOD-DEF2)

5

SCA

2-wire serial interface data (MOD-DEF1)

6

MOD_ABS

Module absent

7

RS0

Receiver rate select

8

RX_LOS

Receiver loss of signal indication

9

RS1

Transmitter rate select

10

VeeR

Receiver ground

11

VeeR

Receiver ground

12

RD-

Receiver inverted DATA out

13

RD+

Receiver non-inverted DATA out

14

VeeR

Receiver ground

15

VccR

Receiver power supply

16

VccT

Transmitter power supply

17

VeeT

Transmitter ground

18

TD+

Transmitter non-inverted DATA in

19

TD-

Transmitter inverted DATA in

20

VeeT

Transmitter ground

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 QFX Series devices:

  • RE-USB-2G-S—2-GB USB flash drive

  • 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:

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