Juniper QFX Series Hardware Guide

Table 36: SFP+ Network Port Connector Pinout Information (continued)
DescriptionSignalPin
Module receiver groundVeeR10
Module receiver groundVeeR11
Receiver inverted data outputRD-12
Receiver noninverted data outputRD+13
Module receiver groundVeeR14
Module receiver 3.3 V supplyVccR15
Module transmitter 3.3 V supplyVccT16
Module transmitter groundVeeT17
Transmitter noninverted data inputTD+18
Transmitter inverted data inputTD-19
Module transmitter groundVeeT20
Table 37: QSFP+ and QSFP28 Network Port Connector Pinout Information
SignalPin
GND1
TX2n2
TX2p3
GND4
TX4n5
TX4p6
GND7
ModSelL8
LPMode_Reset9
VccRx10
SCL11
81Copyright © 2019, Juniper Networks, Inc.
Chapter 2: Site Planning, Preparation, and Specifications

Juniper QFX Series Specifications

General

Category	Switch
Series	QFX
Form Factor	1U, 2U, and modular chassis options
Power Supply	Redundant, hot-swappable power supplies
Cooling	hot-swappable fans
Virtual Chassis	Supported on certain models
Typical Use	Data center, cloud
Operating System	Junos OS
Management	CLI
Key Features	High performance, low latency, automation
Latency	Sub-microsecond latency
Port Density	Varies by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)