HPE SFP28 User manual

HPE Comware
-Based Devices Transceiver
Modules
User Guide (25G)
P
art number: 5200-2357d
Document version: 6W104-20190902

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i
Contents
Overview························································································1
List of 25-Gigabit transceiver modules and network cables ··································································1
About optical transceiver modules···································································································1
Data rate ·····························································································································1
Transmission distance············································································································1
Central wavelength················································································································2
Fiber···································································································································2
LC connector························································································································3
Optical parameters ················································································································3
SFP28 transceiver modules································································4
SFP28 optical transceiver modules··································································································4
Models and specifications·······································································································4
SFP28 copper cables····················································································································4
Models and specifications·······································································································5
SFP28 active optical cables ···········································································································5
Models and specifications·······································································································5
25-Gigabit Ethernet transceiver modules compatibility matrix·····················7
25-Gigabit Ethernet transceiver modules ··························································································7
Switching minimum software release requirements·············································································7
HPE FlexFabric 5950 switch series minimum software version requirements····································7
HPE FlexFabric 5945 switch series minimum software version requirements····································8
Document conventions and icons ······················································10
Conventions······························································································································ 10
Network topology icons ··············································································································· 11
Support and other resources·····························································12
Accessing Hewlett Packard Enterprise Support················································································ 12
Accessing updates····················································································································· 12
Websites ··························································································································· 13
Customer self repair ············································································································ 13
Remote support ·················································································································· 13
Documentation feedback ······································································································ 13
Index···························································································15

1
Overview
This document describes 25-Gigabit transceiver modules and cables available for HPE
Comware-based devices.
List of 25-Gigabit transceiver modules and
network cables
Transceiver module type
Connector type
SFP28 transceiver modules
SFP28 optical transceiver module LC
SFP28 copper cable (for interconnecting devices) N/A
SFP28 active optical cable (for interconnecting devices)
NOTE:
•
HPE 25-Gigabit transceiver modules and cables are subject to change over time. For the most
recent list of HPE 25-Gigabit transceiver modules and cables, contact HPE technical support or
marketing staff.
•
The available
transceiver modules and cables vary by HPE devices. For the transceiver modules
and cables available for a device, see the installation guide for the device. For the 25-Gigabit
transceiver modules and cables for a switch, see "25-Gigabit Ethernet transceiver modules
compatibility matrix".
About optical transceiver modules
Optical transceiver modules (also called fiber transceiver modules) transmit signals over optical
fibers and are suitable for long distance transmission.
The following information explains the major specifications of a fiber transceiver module.
Data rate
Data rate is the number of bits transmitted per second. Data rate is typically measured in Gigabits
per second (Gbps).
Transmission distance
The transmission distance of optical transceiver modules is divided into short and long-range types.
Typically, a distance of 2 km (1.24 miles) or below is short-range type and a distance of 10 km (6.21
miles) is long-range type.
Transmission distances supported by optical transceiver modules are mainly limited by signal
attenuation and dispersion suffered during the transmission of fiber signals over fibers.
•
Signal attenuation occurs because of absorption, dispersion, and leakage over the media as
light travels through optical fibers. This attenuation increases in direct ratio to transmission
distance.

2
•
Dispersion occurs because a fiber transmits light with different wavelengths at different speeds.
Light with different wavelengths reaches the receiving end at different time. This results in
spread and blurred pulses.
Central wavelength
Central wavelength represents the wave band used for optical signal transmission. The following
central wavelengths (wave bands) are available for common optical transceiver modules: 850 nm,
1310 nm, and 1550 nm.
•
The 850 nm wave band is used for short-reach transmission.
•
The 1310 nm and 1550 nm wave bands are used for middle-reach and long-haul transmissions.
Fiber
Fiber types
Fibers are classified into multimode fibers and single-mode fibers.
•
Multimode fibers
Multimode fibers (MMFs) have thicker fiber cores than single-mode fibers 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, as shown in Table 1. The modal bandwidth is a comprehensive index that reflects
the optical characteristics of a multimode fiber. The modal bandwidth of a multimode fiber is
equal to the modulation frequency of the maximum modulation frequency pulse that can pass a
fiber × the fiber length.
International Telecommunication Union (ITU) defines multimode fiber types in its G series
standards. The most commonly used multimode fiber is defined in the ITU G.651 standard. The
G.651-compliant fiber transmits light in the wavelength range of 800 nm to 900 nm or 1200 nm
to 1350 nm.
Table 1 Multimode fiber grades
Fiber grade
Fiber diameter (μm)
Modal bandwidth at 850 nm (MHz*km)
OM3 50/125 2000
OM4 50/125 4700
•
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 an "SM" mark.
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. Table 2 describes features
of the G.652 and G.655-compliant fibers.
Table 2 Features of G.652 and G.655-compliant fibers
Single-mode fiber type
Wavelength (nm)
Features
Applications
G.652-compliant fiber
(standard single-mode
•1260 to 1360
•1530 to 1565 Zero dispersion at
1310 nm. Connecting
transceiver modules

3
Single-mode fiber type
Wavelength (nm)
Features
Applications
fiber)
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.
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
represents a fiber core diameter of 9 μm and a fiber cladding diameter of 125 μm.
As a best practice, use the following fiber diameters for the HPE Comware-based devices:
•
G.652 standard single-mode fiber—9/125 μm.
•
G.655 single-mode fiber—9/125 μm.
•
G.651 standard multimode fiber—50/125 μm.
LC connector
CAUTION:
Cover the connector with a dust cap when it is not connected to optical fibers.
Connectors connect transceiver modules to the transmission media.
Figure 1 LC connector
Optical parameters
The following are the major optical parameters:
•
Transmit power—Transmit power is the power at which the transmitter of an optical
transceiver module transmits optical signals, in dBm.
•
Receive power—Receive power is the power at which the receiver of a optical transceiver
module receives optical signals, in dBm.
The transceiver module specifications in this guide provide the average transmit and receive power
ranges.

4
SFP28 transceiver modules
SFP28 optical transceiver modules
Figure 2 SFP28 optical transceiver module
Models and specifications
SFP28 optical transceiver modules provide a transmission rate of 25 Gbps and use LC connectors.
Table 3 Specifications for SFP28 optical transceiver modules (1)
Product
code HPE description
Central
wavelength
(nm)
Fiber
mode
Fiber
diameter
(µm)
Modal
bandwidth
(MHz*km)
Transmission
distance
JL293A
HPE X190 25G
SFP28 LC SR
100m MM
Transceiver
850 MMF 50/125
2000 70 m (229.66 ft)
4700 100 m (328.08
ft)
Table 4 Specifications for SFP28 optical transceiver modules (2)
Product code HPE description
Optical parameters (dBm)
Transmit power
Receive power
JL293A HPE X190 25G SFP28 LC SR 100m MM
Transceiver –8.4 to +2.4 –10.3 to +2.4
SFP28 copper cables
Figure 3 SFP28 copper cable

5
Models and specifications
Table 5 Specifications for SFP28 copper cables
Product
code
HPE description Cable length Data
rate
JL294A HPE X240 25G SFP28 to SFP28 1m Direct Attach Copper Cable 1 m (3.28 ft)
25 Gbps
JL295A HPE X240 25G SFP28 to SFP28 3m Direct Attach Copper Cable 3 m (9.84 ft)
JL296A HPE X240 25G SFP28 to SFP28 5m Direct Attach Copper Cable 5 m (16.40 ft)
CAUTION:
The Forward Error Correction (FEC) mode
s include BASE-R, NONE, and RS-FEC. You must
configure
the same FEC mode for the two interfaces of a link.
•
To use a 25G copper cable with a length of 1 m (3.28 ft) or 3 m (9.84 ft), you can configure the
BASE-R, NONE, or RS-FEC mode for the two interfaces of the link.
•
To use a 25G copper cable of equal to or longer than 5 m (16.40 ft), you can configure only the
RS-FEC mode for the two interfaces of the link.
F
or the FEC modes supported by the device, see the command reference and configuration guide
for the device.
SFP28 active optical cables
Figure 4 SFP28 active optical cable
Models and specifications
Table 6 Specifications for SFP28 active optical cables
Product
code
HPE description Cable length Data rate
JH955A HPE X2A0 25G SFP28 to SFP28 3m Active Optical Cable 3 m (9.84 ft)
25 Gbps
JH956A HPE X2A0 25G SFP28 to SFP28 5m Active Optical Cable 5 m (16.40 ft)
JL297A HPE X2A0 25G SFP28 to SFP28 7m Active Optical Cable 7 m (22.97 ft)
JL298A HPE X2A0 25G SFP28 to SFP28 10m Active Optical Cable 10 m (32.81 ft)

6
Product
code
HPE description Cable length Data rate
JL299A HPE X2A0 25G SFP28 to SFP28 20m Active Optical Cable 20 m (39.37 ft)

7
25-Gigabit Ethernet transceiver modules
compatibility matrix
25-Gigabit Ethernet transceiver modules
Before you install, configure, or upgrade a device with HPE 25-Gigabit Ethernet transceiver
modules, always see the device's release notes for latest information. This compatibility matrix does
not replace or supersede the release notes.
Table 7 25 Gigabit Ethernet transceiver modules
Product code
Transceiver module
Description
SFP28
JL293A HPE X190 25G SFP28 LC SR
100m MM Transceiver LSWM2SFP28,25G SFP28 Optical Transceiver Module,(850nm,100m,SR,LC)
JL294A HPE X240 25G SFP28 to SFP28
1m Direct Attach Copper Cable LSWM2SFP28A,25G SFP28 to SFP28 1m Passive Cable,1m
JL295A HPE X240 25G SFP28 to SFP28
3m Direct Attach Copper Cable LSWM2SFP28B,25G SFP28 to SFP28 3m Passive Cable,3m
JL296A HPE X240 25G SFP28 to SFP28
5m Direct Attach Copper Cable LSWM2SFP28C,25G SFP28 to SFP28 5m Passive Cable,5m
JH955A HPE X2A0 25G SFP28 to SFP28
3m Active Optical Cable LSWM2SFP28D,25G SFP28 to 25G SFP28 AOC,3m
JH956A HPE X2A0 25G SFP28 to SFP28
5m Active Optical Cable LSWM2SFP28E,25G SFP28 to 25G SFP28 AOC,5m
JL297A HPE X2A0 25G SFP28 to SFP28
7m Active Optical Cable LSWM2SFP28F,25G SFP28 to 25G SFP28 AOC,7m
JL298A HPE X2A0 25G SFP28 to SFP28
10m Active Optical Cable LSWM2SFP28G,25G SFP28 to 25G SFP28 AOC,10m
JL299A HPE X2A0 25G SFP28 to SFP28
20m Active Optical Cable LSWM2SFP28H,25G SFP28 to 25G SFP28 AOC,20m
Switching minimum software release
requirements
HPE FlexFabric 5950 switch series minimum software
version requirements
Switch or module Transceiver module (Product code)
Minimum software
release
DDM
support
Release
version
HPE FlexFabric 5950
HPE X190 25G SFP28 LC SR 100m MM Xcvr
YES R6123