HPE Aruba QSFP28 User manual

ArubaOS-Switch and ArubaOS-CX
Transceiver Guide
Part Number: 5200-3362f
Published: March 2020
Edition: 7

© Copyright 2017, 2020 Hewlett Packard Enterprise Development LP
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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...............................................................................................................................................7
Transmission distance........................................................................................................................ 7
Central wavelength............................................................................................................................. 8
Fiber...................................................................................................................................................... 8
Fiber types................................................................................................................................ 8
Fiber diameter........................................................................................................................10
Connector...........................................................................................................................................10
Optical parameters........................................................................................................................... 11
Copper transceiver modules.......................................................................................................................12
Transmission distance...................................................................................................................... 12
Connector...........................................................................................................................................12
Identication of 4x4 part numbers............................................................................................................ 13
Chapter 2 QSFP28 modules.............................................................................15
QSFP28 optical transceiver modules that use MPO connectors............................................................ 15
Models, specications, and compatibility...................................................................................... 15
QSFP28 optical transceiver modules that use LC connectors................................................................ 16
Models, specications, and compatibility...................................................................................... 16
QSFP28 DAC (copper cables).......................................................................................................................19
Models, specications, and compatibility...................................................................................... 19
Chapter 3 QSFP+ modules...............................................................................20
QSFP+ optical transceiver modules that use MPO connectors.............................................................. 20
Models, specications, and compatibility...................................................................................... 20
QSFP+ optical transceiver modules that use LC connectors...................................................................21
Models, specications, and compatibility...................................................................................... 22
QSFP+ DAC (copper cables)......................................................................................................................... 24
Models, specications, and compatibility...................................................................................... 24
QSFP+ 40G AOC (Active Optical Cable)...................................................................................................... 26
Models, specications, and compatibility...................................................................................... 26
Chapter 4 SFP28 modules................................................................................27
SFP28 optical transceiver modules............................................................................................................ 27
Models, specications, and compatibility...................................................................................... 27
SFP28 DAC (copper cables)..........................................................................................................................28
Models, specications, and compatibility...................................................................................... 29
SFP28 25G AOC (Active Optical Cable)....................................................................................................... 30
Models, specications, and compatibility...................................................................................... 31
Chapter 5 SFP+ modules..................................................................................32
Contents
Contents 3

SFP+ optical transceiver modules.............................................................................................................. 32
Models, specications, and compatibility...................................................................................... 32
10G SFP+ copper transceiver modules......................................................................................................41
Models, specications, and compatibility...................................................................................... 41
SFP+ DAC cables........................................................................................................................................... 42
Models, specications, and compatibility...................................................................................... 43
Chapter 6 SFP modules.................................................................................... 47
Gigabit SFP optical transceiver modules................................................................................................... 47
Models, specications, and compatibility...................................................................................... 47
100-Megabit SFP optical transceiver modules..........................................................................................54
Models, specications, and compatibility...................................................................................... 54
Gigabit BIDI optical transceiver modules.................................................................................................. 60
Models, specications, and compatibility...................................................................................... 60
Gigabit SFP copper transceiver modules...................................................................................................64
Models, specications, and compatibility...................................................................................... 65
Chapter 7 Support for HPE Servers and Systems products.....................69
Chapter 8 Websites...........................................................................................71
Chapter 9 Support and other resources...................................................... 72
Accessing Hewlett Packard Enterprise Support........................................................................................72
Accessing updates........................................................................................................................................72
Remote support............................................................................................................................................73
Warranty information.................................................................................................................................. 73
Regulatory information............................................................................................................................... 74
Documentation feedback............................................................................................................................74
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/resourcender
Conventions
This section describes the conventions used in the documentation.
Note on product images
NOTE: Product images in this guide may dier 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
QSFP+ AOC (Active Optical Cable)
for interconnecting devices) 7m to
30m reaches
N/A
SFP28 module SFP28 same size as SFP+ (optical) LC 2-strand
SFP28 DAC (copper cable for
interconnecting devices) 0.65m to
5m reaches
N/A - twinax cable permanently
attached
SFP28 active
opticalcable(forinterconnectingde
vices) 7m to 30m reaches
N/A
-
Optical cable permanently
attached
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
Table Continued
6ArubaOS-Switch and ArubaOS-CX Transceiver Guide

Transceiver module type Connector head
Gigabit SFP optical transceiver
module
1G and 10G SFP copper
transceiver module
RJ-45
(1G requires Cat5e. 10G requires
Cat6A for maximum supported
distances.)
NOTE:
• 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 Datasheets or QuickSpecs for the applicable switch product. Refer to the
tables within this guide for the specic switch model.
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
• 25 Gbps
• 10 Gbps
• 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 suered during the transmission of ber signals over bers.
• Loss is the optical energy loss due to the absorption, dispersion, and leakage over the media when light
travels through optical bers. This loss increases in direct ratio to transmission distance.
• Dispersion occurs mainly because light waves of dierent wavelengths travel at dierent rates over the
same medium. This causes dierent 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). Dierent wavelengths traveling down the same ber are
called modes, and this data loss is known as intermodal dispersion.
Chapter 1 Overview 7

To meet dierent 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 and 1550 nm waveband: Used for middle-reach and long-haul transmission.
Fiber
Fiber types
Fibers are classied as multimode bers and single-mode bers.
• Multimode bers
Multimode bers (MMFs) have thicker ber cores and can transport light in multiple modes. However, the
intermodal dispersion is greater and worsens as the transmission distance increases.
Multimode bers can be classied into multiple grades according to their diameters and modal
bandwidth. For more information, see Table 2. The modal bandwidth of a multimode ber is determined
by the expression of the maximum modulation frequency pulse that can pass a ber × the ber length.
The modal bandwidth is a comprehensive index reecting the optical characteristics of a multimode
ber.
International Telecommunication Union (ITU) denes multimode ber types in its G series standards. The
commonly used multimode ber is dened in the ITU G.651 standard. The G.651-compliant ber
transmits light at the wavelength range 800 nm to 900 nm or 1200 nm to 1350 nm.
Table 3: Multimode ber grades
Fiber mode Fiber grade Fiber diameter (μm) Modal bandwidth at 850
nm (MHz*km)
Multimode ber OM1 62.5/125 200
OM2 50/125 500
OM3 50/125 2000
OM4 50/125 4700
Other factors that inuence the transmission distance of multimode bers include interface type, central
wavelength, and ber grade. The modal bandwidth values shown above are for the ber grades listed.
There are multimode bers that have dierent modal bandwidth characteristics and do not necessarily
match the OM1 - OM4 grades.
8ArubaOS-Switch and ArubaOS-CX Transceiver Guide

Table 4: Multimode ber specications
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 11310 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)
1 LRM technology requires a PHY behind the SFP port. Not all 10G SFP (or higher) can support the use of a 10G LRM
transceiver. Check the compatibility chart for your switch series to see if 10G LRM is supported.
• Single-mode bers
Single-mode bers (SMFs) have a small core size, typically 9 μm or 10 μm, and can transmit light in only
one mode. Single-mode bers suer little intermodal dispersion and are suitable for long-haul
communication. Single-mode bers transmit light at the central wavelength of 1310 nm or 1550 nm.
Telecommunication Industries Alliance (TIA)/Electronic Industries Alliance (EIA) denes that single-mode
bers use yellow outer jackets with the mark "SM".
ITU denes single-mode ber types in its G series standards. The most commonly used single-mode
bers are dened in ITU G.652 and G.655 standards. The following table describes features of the G.652
and G.655-compliant bers.
Table 5: Features of G.652- and G.655-compliant bers
Single-mode ber
type
Wavelength (nm) Features Applications
G.652-compliant
ber (standard
single-mode ber)
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
ber (non-zero
dispersion shifted
ber)
1530 to 1565 Near-zero dispersion
around 1550 nm
For 1550 nm wavelength-
division multiplexing (WDM)
transmissions.
Chapter 1 Overview 9

Fiber diameter
Fiber diameter is expressed as core diameter/cladding diameter, in μm. For example, 9/125 μm means that
the ber core diameter is 9 μm and the ber cladding diameter is 125 μm.
For the HPE devices, the following ber diameters are recommended:
•G.652 standard single-mode ber: 9/125 μm
•G.655 non zero dispersion shifted single-mode ber: 9/125 μm
•G.651 standard multimode ber: 50/125 μm or 62.5/125 μm
Connector
CAUTION: Cover the connector with a dust cap when it is not connected to any optical bers.
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.
NOTE: 40G BiDi uses only Duplex ber versus MPO (see below) for 40G SR4 applications.
Figure 1: LC connector (a simplex connector is shown)
•Multiber 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 classied as the following types based on the polish type:
◦Physical contact (PC): End face polished at.
◦Angle-polished contact (APC): End face polished with an angle, typically 8°.
10 ArubaOS-Switch and ArubaOS-CX Transceiver Guide