HPE Aruba QSFP28 User manual

ArubaOS-Switch and ArubaOS-CX
Transceiver Guide
Part Number: 5200-3362c
Published: March 2018
Edition: 4

© Copyright 2017, 2018 Hewlett Packard Enterprise Development LP
Notices
The information contained herein is subject to change without notice. The only warranties for Hewlett Packard
Enterprise products and services are set forth in the express warranty statements accompanying such products
and services. Nothing herein should be construed as constituting an additional warranty. Hewlett Packard
Enterprise shall not be liable for technical or editorial errors or omissions contained herein.
Confidential computer software. Valid license from Hewlett Packard Enterprise required for possession, use, or
copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software
Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor's
standard commercial license.
Links to third-party websites take you outside the Hewlett Packard Enterprise website. Hewlett Packard Enterprise
has no control over and is not responsible for information outside the Hewlett Packard Enterprise website.

Chapter 1 Overview..........................................................................................5
Conventions............................................................................................................................................... 5
Note on product images.................................................................................................................. 5
Port numbering in examples........................................................................................................... 5
Symbols.......................................................................................................................................... 5
Types of transceiver modules and network cables.................................................................................... 6
Data rate......................................................................................................................................... 6
Transmission distance.....................................................................................................................7
Central wavelength......................................................................................................................... 7
Fiber................................................................................................................................................ 7
Fiber types............................................................................................................................7
Fiber diameter...................................................................................................................... 9
Connector........................................................................................................................................9
Optical parameters........................................................................................................................ 11
Copper transceiver modules.................................................................................................................... 11
Transmission distance...................................................................................................................11
Connector......................................................................................................................................12
Identification of 4x4 part numbers............................................................................................................12
Chapter 2 QSFP28 modules.......................................................................... 14
QSFP28 optical transceiver modules that use MPO connectors............................................................. 14
Models and specifications............................................................................................................. 14
QSFP28 optical transceiver modules that use LC connectors.................................................................15
Models and specifications............................................................................................................. 15
QSFP28 DAC (copper cables).................................................................................................................16
Models and specifications............................................................................................................. 16
Chapter 3 QSFP+ modules............................................................................ 17
QSFP+ optical transceiver modules that use MPO connectors...............................................................17
Models, specifications, and compatibility...................................................................................... 17
QSFP+ optical transceiver modules that use LC connectors...................................................................18
Models, specifications, and compatibility...................................................................................... 19
QSFP+ DAC (copper cables)...................................................................................................................21
Models, specifications, and compatibility...................................................................................... 21
Chapter 4 SFP+ modules...............................................................................23
SFP+ optical transceiver modules........................................................................................................... 23
Models, specifications, and compatibility...................................................................................... 23
10G SFP+ copper transceiver modules...................................................................................................29
Models, specifications, and compatibility...................................................................................... 29
SFP+ DAC cables....................................................................................................................................29
Models, specifications, and compatibility...................................................................................... 30
Chapter 5 SFP modules................................................................................. 34
Gigabit SFP optical transceiver modules................................................................................................. 34
Models, specifications, and compatibility...................................................................................... 34
Contents
Contents 3

100-Megabit SFP optical transceiver modules........................................................................................ 42
Models, specifications, and compatibility...................................................................................... 42
Gigabit BIDI optical transceiver modules................................................................................................. 50
Models, specifications, and compatibility...................................................................................... 50
Gigabit SFP copper transceiver modules................................................................................................ 56
Models, specifications, and compatibility...................................................................................... 57
Chapter 6 Websites........................................................................................ 62
Chapter 7 Support and other resources...................................................... 63
Accessing Hewlett Packard Enterprise Support...................................................................................... 63
Accessing updates...................................................................................................................................63
Customer self repair.................................................................................................................................64
Remote support....................................................................................................................................... 64
Warranty information................................................................................................................................64
Regulatory information.............................................................................................................................65
Documentation feedback......................................................................................................................... 65
4ArubaOS-Switch and ArubaOS-CX Transceiver Guide

The transceivers listed in this document represent the currently available and End of Sale products at the time of
this publication. Not all transceiver products are supported in every switch available from Aruba. Consult the
QuickSpecs for the applicable switch product for a list of supported transceiver products. QuickSpecs can be
found at http://www.hpe.com/networking/resourcefinder
Conventions
This section describes the conventions used in the documentation.
Note on product images
Product images in this guide may differ from actual product.
Port numbering in examples
The port numbers in this document are for illustration only and might be unavailable on your device.
Symbols
Table 1: Symbols
Convention Description
An alert that calls attention to important information that if not
understood or followed can result in personal injury.
An alert that calls attention to important information that if not
understood or followed can result in data loss, data corruption, or
damage to hardware or software.
An alert that calls attention to essential information.
NOTE: An alert that contains additional or supplementary information.
An alert that provides helpful information.
Chapter 1
Overview
Chapter 1 Overview 5

Types of transceiver modules and network cables
Table 2: Types of transceiver modules and network cables
Transceiver module type Connector head
QSFP28 module (transceiver) QSFP28 optical transceiver module MPO 12-strand or LC 2-strand
QSFP28 DAC (copper cable for
interconnecting devices) 1 - 5m
reaches
N/A
QSFP+ module (transceiver) QSFP+ optical transceiver module MPO 12-strand or LC 2-strand
QSFP+ DAC (copper cable for
interconnecting devices) 1 - 5m
reaches
N/A
SFP+ module (transceiver) SFP+ optical transceiver module LC 2-strand or 1-strand (for BiDi)
SFP+ DAC (copper cable for
interconnecting devices)
N/A
Small form-factor pluggable (SFP)
module (transceiver)
100-Megabit SFP optical
transceiver module
LC 2-strand
Gigabit SFP optical transceiver
module
Gigabit SFP copper transceiver
module
RJ-45
• The available transceiver modules and network cables vary by device models and are subject to
change over time. For the most up-to-date list of transceiver modules and network cables, contact
your Aruba sales representative or technical support engineer.
• For information about the transceiver modules and network cables available for each device
model, see the QuickSpecs for the applicable switch product.
Data rate
Data rate is the number of bits transmitted per second. The unit of measure for data rate is Megabits per second
(Mbps) or Gigabits per second (Gbps). Optical transceiver modules available for products provide the following
levels of data rates:
• 100 Gbps
• 40 Gbps
• 10 Gbps
6ArubaOS-Switch and ArubaOS-CX Transceiver Guide

• 1000 Mbps (also known as Gigabit)
• 100 Mbps
Transmission distance
The transmission distance of optical transceiver modules is divided into short and long-range types. A distance of
2 km (1.24 miles) and below is considered a short-range type. A distance of 10 km (6.21 miles) is considered a
long-range type. Transmission distances provided by optical transceiver modules are limited by certain loss and
dispersion suffered during the transmission of fiber signals over fibers.
• Loss is the optical energy loss due to the absorption, dispersion, and leakage over the media when light
travels through optical fibers. This loss increases in direct ratio to transmission distance.
• Dispersion occurs mainly because light waves of different wavelengths travel at different rates over the same
medium. This causes different wave components of optical signals to reach the receiving end early or late as
the transmission distance increases causing impulse broadening. Impulse broadening makes the signal values
indistinguishable (data loss). Different wavelengths traveling down the same fiber are called modes, and this
data loss is known as intermodal dispersion.
To meet different transmission distance requirements, choose suitable optical transceiver modules according to
actual networking conditions.
Central wavelength
Central wavelength (wl) represents the wave band used for optical signal transmission. The following central
wavelengths are available for common optical transceiver modules representing three wavebands:
• 850 nm waveband: Used for short-reach transmission.
• 1310 nm waveband: Used for middle-reach and long-haul transmission.
• 1550 nm waveband: Used for middle-reach and long-haul transmission.
Fiber
Fiber types
Fibers are classified as multimode fibers and single-mode fibers.
• Multimode fibers
Multimode fibers (MMFs) have thicker fiber cores and can transport light in multiple modes. However, the
intermodal dispersion is greater and worsens as the transmission distance increases.
Multimode fibers can be classified into multiple grades according to their diameters and modal bandwidth. For
more information, see Table 2. The modal bandwidth of a multimode fiber is determined by the expression of
the maximum modulation frequency pulse that can pass a fiber × the fiber length. The modal bandwidth is a
comprehensive index reflecting the optical characteristics of a multimode fiber.
International Telecommunication Union (ITU) defines multimode fiber types in its G series standards. The
commonly used multimode fiber is defined in the ITU G.651 standard. The G.651-compliant fiber transmits
light at the wavelength range 800 nm to 900 nm or 1200 nm to 1350 nm.
Chapter 1 Overview 7

Table 3: Multimode fiber grades
Fiber mode Fiber grade Fiber diameter (μm) Modal bandwidth at 850 nm
(MHz*km)
Multimode fiber OM1 62.5/125 200
OM2 50/125 500
OM3 50/125 2000
OM4 50/125 4700
Other factors that influence the transmission distance of multimode fibers include interface type, central
wavelength, and fiber grade. The modal bandwidth values shown above are for the fiber grades listed. There
are multimode fibers that have different modal bandwidth characteristics and do not necessarily match the
OM1 - OM4 grades.
Table 4: Multimode fiber specifications
Interface types Central wavelength
(nm)
Fiber grade Transmission distance
1000BASE-SX 850 OM1 < 275 m (902.23 ft)
OM2 < 550 m (1804.46 ft)
10GBASE-SR 850 OM1 < 33 m (108.27 ft)
OM2 < 82 m (269.03 ft)
OM3 < 300 m (984.25 ft)
OM4 < 400m (1312.34 ft)
10GBASE-LRM 1310 OM1 < 220 m (721.78 ft)
OM2 < 220 m (721.78 ft)
OM3 < 220 m (721.78 ft)
OM4 < 220 m (721.78 ft)
SMF <300m (987.25 ft)
• Single-mode fibers
Single-mode fibers (SMFs) have a small core size, typically 9 μm or 10 μm, and can transmit light in only one
mode. Single-mode fibers suffer little intermodal dispersion and are suitable for long-haul communication.
Single-mode fibers transmit light at the central wavelength of 1310 nm or 1550 nm.
Telecommunication Industries Alliance (TIA)/Electronic Industries Alliance (EIA) defines that single-mode fibers
use yellow outer jackets with the mark "SM".
ITU defines single-mode fiber types in its G series standards. The most commonly used single-mode fibers are
defined in ITU G.652 and G.655 standards. The following table describes features of the G.652 and G.655-
compliant fibers.
8ArubaOS-Switch and ArubaOS-CX Transceiver Guide

Table 5: Features of G.652- and G.655-compliant fibers
Single-mode fiber
type
Wavelength (nm) Features Applications
G.652-compliant
fiber (standard
single-mode fiber)
1260 to 1360
1530 to 1565
Zero dispersion at 1310 nm Connecting transceiver
modules with a central
wavelength of 1310 nm or
1550 nm.
G.655-compliant
fiber (non-zero
dispersion shifted
fiber)
1530 to 1565 Near-zero dispersion around
1550 nm
For 1550 nm wavelength-
division multiplexing (WDM)
transmissions.
Fiber diameter
Fiber diameter is expressed as core diameter/cladding diameter, in μm. For example, 9/125 μm means that the
fiber core diameter is 9 μm and the fiber cladding diameter is 125 μm.
For the HPE devices, the following fiber diameters are recommended:
•G.652 standard single-mode fiber: 9/125 μm
•G.655 non zero dispersion shifted single-mode fiber: 9/125 μm
•G.651 standard multimode fiber: 50/125 μm or 62.5/125 μm
Connector
Cover the connector with a dust cap when it is not connected to any optical fibers.
Connectors connect transceiver modules to the corresponding transmission media. The transceiver modules
available for Aruba products use the following types of connectors:
• Lucent connector or local connector (LC).
Single LC connectors (also known as Simplex) are typically used for 1G & 10G BiDi (Bidirectional) optics.
Dual LC connectors (Duplex) are typically used in normal optical types.
Chapter 1 Overview 9

40G BiDi uses only Duplex fiber versus MPO (see below) for 40G SR4 applications.
Figure 1: LC connector (a simplex connector is shown)
• Multifiber Push On (MPO) connector.
Figure 2: MPO connector
The 40G QSFP+ MPO transceiver modules use only female MPO connectors, which have guide holes in the
end face of the MPO connector (the transceiver has guide pins within the MPO receptacle).
MPO connectors are classified as the following types based on the polish type:
◦Physical contact (PC): End face polished flat.
◦Angle-polished contact (APC): End face polished with an angle, typically 8°.
MPO connectors are available with 12 fibers or 24 fibers:
12-fiber MPO connector (40G, SR4, eSR4, and 100G SR4 transceivers use 8 of the available 12 fibers. The
four center fibers are unused. )
Figure 3: End face of a 12-fiber connector and channel assignment
MPO transceivers typically use four channels to communicate. These channels are assigned using the outer
eight fibers (the center four are unused).
Transmit channels are one set of four fibers, and the receive channels are on the other set of four fibers.
Because of this, the cables used and fiber cable connections from endpoint to endpoint effectively create a
crossover connection.
Be aware that using two crossover cables in series cancels this effect and no connection will be established.
An odd number of crossovers combined with straight-thru fiber connections will effect a crossover connection.
10 ArubaOS-Switch and ArubaOS-CX Transceiver Guide