Transition TN-SFP Series User manual

Transition Networks TN-SFP-xx25G-xR-S Series User
Guide
33815 Rev. A https://www.transition.com Page 1 of 9
User Guide
TN-SFP-xx25G-xR-S Series
Cisco Compatible 10G/25GBase SFP28 Modules
10G/25GBase-X, SFP28 With DMI (LC)
Transceiver Modules
•SFP28 Optical Transceiver with LC connector
•MSA Compliant
•Compliant with 10GBase-xR
•Compliant with 25GBase-xR
•Compliant with 5G eCPRI
•Single +3.3V Power Supply
•Power dissipation < 1.2 Watts
•Compliant with SFF-8431 and SFF-8472
•RoHS Compliant
Contents
Introduction................................................................................................................................................................1
Description .................................................................................................................................................................2
Ordering Information (Duplex)...................................................................................................................................2
Specifications and Standards......................................................................................................................................2
Optical Specifications .................................................................................................................................................3
Applications ................................................................................................................................................................3
SFP Unpacking ............................................................................................................................................................3
SFP Installation ...........................................................................................................................................................3
Cautions .................................................................................................................................................................3
Installing an SFP Module........................................................................................................................................3
Fiber Cable Physical Characteristics.......................................................................................................................4
Connecting Fiber Cables.........................................................................................................................................4
Removing an SFP Module ......................................................................................................................................4
Diagnostic Monitoring Interface (DMI) ......................................................................................................................6
DDMI (Digital Diagnostics Monitoring Interface) .......................................................................................................7
Contact Us ..................................................................................................................................................................8
For More Information.................................................................................................................................................8
Compliance Information.............................................................................................................................................8
Record of Revisions ....................................................................................................................................................9
Introduction
The Transition Networks TN-SFP-xx25G-xR-S Series 25G SFP28 transceiver modules are designed to install in any
SFP28 port allowing for 25G/10GBase-X interfaces to the network via the SFP28 connector. The TN-SFP-xx25G-
xR-S transceivers are Cisco Compliant and are designed for bi-directional serial-optical data communication such
as 25G Ethernet at speeds up to 26.5 Gbps.

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Description
Transition Networks’ SFP28 modules fully comply with the Multi-Sourcing Agreement (MSA). This compliance
allows our SFP28 modules to be used in all other MSA compliant SFP28 platforms. In addition, Transition
Networks SFP28 modules are also Compliant with all Cisco SFP28 based routers and switches, as well as Cisco’s
IOS software. Transition Networks SFP28 modules are not Cisco OEM brand modules.
These SFPs are intended for 25G Ethernet and eCPRI for 5G Fronthaul/Backhaul applications. The eCPRI
Interface Specification for the Common Public Radio Interface is an industry cooperation aimed at defining
publicly available specifications for the key internal interface of radio base stations, such as eCPRI connecting
the eCPRI Radio Equipment Control (eREC) and the eCPRI Radio Equipment (eRE) via a “fronthaul transport
network”.
The latest eCPRI specification may be found at http://www.cpri.info/downloads/eCPRI_v_1_1_2018_01_10.pdf.
RRH (Remote Radio Head) are distributed on the towers every few miles in cities and suburban areas. These
RRHs must be connected to baseband units sitting at centralized locations. The connection between the RRUs
and the base station is often called “fronthaul.” While 4G (LTE) uses CPRI (Common Public Radio Interface) as
the fronthaul connection, eCPRI (enhanced CPRI) is becoming an important technology for 5G and Open RAN.
The eCPRI specification is intended to enable efficient and flexible radio data transmission via a packet based
fronthaul transport network such as Ethernet or IP.
Ordering Information (Duplex)
SKU
Description
TN-SFP-25G-SR-S
10G/25GBase-SR, SFP28 with DMI 850nm multimode (LC) [100/70 m; 328/230 ft.*]
Link Budget:9.0 dB
*Distance up to 100m on 50/125 OM4 multimode fiber, up to 70 m for 50/125 um
OM3 multimode fiber.
TN-SFP-10/25G-LR-S
10G/25GBase-LR, SFP28 with DMI 1310nm single mode (LC) [10 km / 6.2 mi.]
Link Budget: 8.3 dB
Specifications and Standards
The TN-SFP-10G-xxx and TN-CWDM-10G-xxx are designed to meet these standards and specifications:
Standards
IEEE 802.3z, IEEE 802.3, IEEE 802.3ae, IEEE 802.3CC
Output Wavelength
-5.5nm < λc < +7.5nm
Compliance
IEC-60825, FDA 21, CFR 1040.10 and 1040.11
MSA, 10GBase-xR, 25GBase-xR, 5G eCPRI, SFF-8431, SFF-8472, RoHS Compliant
Dimensions
Width: 0.52” [13 mm] x Depth: 2.18” [55 mm] x Height:0.33” [8 mm]
Power Input
3.3V
Power dissipation
< 1.2 Watts
Operating Temp
0°C to 70°C
Storage Temp
-40°C to 85°C
Warranty
Lifetime

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Optical Specifications
The Optical Specs for all Transition Networks’ SFPs are listed at www.transition.com/sfp.pdf.
Applications
These SFPs are intended for 25G Ethernet and Fiber Channel for Data Center eCPRI for 5G Fronthaul/Backhaul
applications.
SFP Unpacking
Before you start installing the TN-SFP-xxx, verify that the package contains one TN-SFP-xxx device and one
Support Postcard. Notify your sales representative immediately if any of the above items is missing or damaged.
Save the packaging for possible future use.
SFP Installation
Cautions
•The SFP module is keyed to only be installed one way. If forced the wrong way, damage may occur.
•Avoid getting dust or other contaminants into the fiber bore of the SFP transceiver module, as this will cause
the optics to not operate properly.
•Clean the optic surfaces of the optical fiber before you plug them back in to the optical bores of another SFP
module. See Fiber Optic Association Cleaning Fiber Optic Connections page.
•Each port must match the wavelength specifications on the other end of the cable, and the cable must not
exceed the specified cable length for reliable communications.
Installing an SFP Module
1. Review the Cautions above.
2. Attach an ESD-preventive wrist strap to your wrist and to an ESD ground connector or bare metal surface on
the chassis.
3. Remove the SFP transceiver module from its protective packaging. Note: Do not remove the optical bore
dust plugs until directed to do so in a later procedure.
4. Check the slot orientation; for some devices (e.g., S4224) some slots are “upside down” compared to other
slots.
5. Position the SFP device at the desired installation slot, with the label facing correctly.

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6. Carefully slide the SFP device into the slot, aligning it with the internal installation guides.
7. Ensure that the SFP device is firmly seated against the internal mating connector. To verify that the SFP is
seated and latched properly. a) Grasp the SFP by the sides and try to remove it without releasing the latch.
b) If the SFP cannot be removed, it is installed and seated properly. If the SFP can be removed, reinsert it
and press harder with your thumb; repeat if necessary until it is latched securely into the socket.
TN-SFP-10/25G-LR-S (Lever Latched) TN-SFP-10/25G-LR-S (Lever Latched)
8. Connect the fiber cable to the fiber port connector of the SFP device. Make sure the SFP release latch is in
the up (closed) position when you insert the cable connector into the SFP.
9. Remove the dust plug from the connector. Save the dust plug for future use.
10. Attach an appropriate cable into the SFP module port.
11. Attach the other end of the cable into the other device.
12. Observe the status LED(s). See the related manual for details.
Fiber Cable Physical Characteristics
The fiber cable physical characteristics must meet or exceed IEEE 802.3ae specifications:
•Single mode fiber (recommended): 9 μm
•Multimode fiber (recommended): Distance up to 100m on 50/125 OM4 multimode fiber, up to 70 m for
50/125 um OM3 multimode fiber
Warning: Visible and invisible laser radiation when open. DO NOT stare into laser beam or view directly with
optical instruments. Failure to observe this warning could result in damage to your eyes or blindness.
Connecting Fiber Cables
To install the fiber cable:
1. Locate the appropriate fiber cable.
2. Install the cable as shown right.
Removing an SFP Module
Caution: Be careful when removing the SFP or SFP+ from a device. Some SFP transceiver module temperatures
may exceed 160°F (70°C) and be too hot to touch with bare hands. Note: Do not remove and replace the SFP
modules more often than necessary; excessive SFP removing and replacing can shorten the SFPs useful life.

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1. Attach an ESD-preventive wrist strap to your wrist and to the ESD ground connector or a bare metal surface
on your chassis.
2. For future reattachment of fiber-optic cables, note which connector plug is send (TX) and which is receive
(RX).
3. Remove the SFP transceiver module:
a. If the SFP transceiver module has an actuator button latch, gently press the actuator button on the front
of the SFP transceiver module until it clicks, and the latch mechanism releases the SFP transceiver module
from the socket connector. Grasp the actuator button between your thumb and index finger, and carefully
pull the SFP transceiver module straight out of the module slot.
b. If the SFP transceiver module has a bail clasp latch, pull the latch out and down to eject the SFP
transceiver module from the socket connector. If the bail clasp latch is obstructed and you cannot use your
index finger to open it, use a small, flat-blade screwdriver or other long, narrow instrument to open the bail
clasp latch. Grasp the SFP transceiver module between your thumb and index finger, and carefully remove it
from the socket.
4. Replace the Dust Plug.
5. Place the removed SFP/SFP+ transceiver module in an antistatic bag or other protective package.

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Diagnostic Monitoring Interface (DMI)
The following DMI port screen and explanation table contain brief definitions of the DMI support offered on
some SFP Transceiver Modules. For further information, see the help option on Transition Networks Focal Point,
ION System, and other GUIs. Note: This feature is not available on all devices and may vary between products.
See the related manual for more information.
DMI Parameter
Description
DMI Rx Power
Measured receive optical power in microwatts and in decibels relative to 1mW.
DMI Rx Power Alarm
Alarm status of measured receive optical power.
DMI Temp
Internally measured temperature of transceiver in degrees Celsius and Fahrenheit.
DMI Temp Alarm
Alarm status for internally measured temperature of the transceiver.
DMI Bias Current
Measured transmit bias current in microamperes.
DMI Bias Alarm
Alarm status for measured transmit bias current for the interface.
DMI Tx Power
Measured transmit power in microwatts and in decibels relative to 1mW.
DMI Tx Power Alarm
Alarm status of measured transmit power.
Rx Power Intrusion
Threshold
Tells the converter to stop passing traffic when the receive power drops below the
new threshold. This feature is sometimes referred to as 'Intrusion Detection’, since
tapping into a fiber to intercept traffic leads to a reduction in receive power. This
value can be entered in microwatts or in decibels relative to 1mW.
TN-SFP distances, TX power, RX power, and link budgets can be found on Transition Networks website.The fiber
optic transmitters on this device meet Class I Laser safety requirements per IEC-825/CDRH standards and comply
with 21 CFR1040.10 and 21CFR1040.11. WARNING: Visible and invisible laser radiation when open. Do not stare
into the beam or view the beam directly with optical instruments. Failure to observe this warning could result in
an eye injury or blindness.

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DDMI (Digital Diagnostics Monitoring Interface)
DDMI (Digital Diagnostics Monitoring Interface) provides enhanced digital DMI for optical transceivers which
allows real time access to device operating parameters.
The following DMI port screen and explanation table contains brief definitions of the DDMI support offered on
some Small Form Factor Pluggable (SFP) Transceiver Modules. For further information, see the help option or
User Guide for the relate product4. Note: This feature is not available on all devices and may vary between
products. See the related manual for more information.
The Transceiver Information and DDMI Information sections are described below.
DDMI Parameter
Description
DMI
Rx Power (uW) Intrusion Threshold; a level for Rx Power on the Fiber port. If the DMI
read value falls below the preset value, an intrusion is detected, and a trap is
generated. The default is 0 uW. The range is 0 - 65,535 uW.
Port
The device’s port number.
Vendor
The SFP vendor’s name (e.g., Transition ).
Part Number
The SFP vendor Part number provided by the SFP vendor ( TN-10GSFP-SR ).
Serial Number
The SFP Vendor Serial number provided by the SFP vendor (e.g., 8672105 ).
Revision
The SFP vendor Revision level for part number provided by the SFP vendor.
Date Code
The vendor's manufacturing date code (e.g ., 2011-08-09 ).
Transeiver
The Transceiver compatibility (e.g., 1000BASE_SX or 10G ).
Current
The current value of temperature, voltage, TX bias, TX power, and RX power.
High Alarm Threshold
The high alarm threshold value - temperature, voltage, TX bias, TX power, - RX power.
High Warn Threshold
The high warn threshold value of temperature, voltage, TX bias, TX power, RX power.
Low Warn Threshold
The low warn threshold value of temperature, voltage, TX bias, TX power, RX power.
Low Alarm Threshold
The low alarm threshold value - temperature, voltage, TX bias, TX power, RX power.

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Contact Us
Technical Support: Technical support is available 24-hours a day: US and Canada: 1-800-260-1312;
International: 00-1-952-941-7600
Main Office
tel: [phone] | toll free: 1.800.526.9267 | fax: [phone]
[email protected]om | [e-mail] | [e-mail]
Address
Transition Networks
10900 Red Circle Drive
Minnetonka, MN 55343, U.S.A.
Web: https://www.transition.com
For More Information
Technical information in this document is subject to change without notice. For more information see our online
Optical Devices Product Catalog or our SFP Specifications page.
The Fiber Optic Association, Inc. is the international professional association of fiber optics. The FOA is an
international non-profit educational association chartered to promote professionalism in fiber optics through
education, certification and standards. FOA creates and publishes its own technical materials for training and
reference based on a worldwide network of technical advisors. See https://foa.org/foa.htm.
Compliance Information
Class I Laser Compliance
This product has been tested and found to comply with the limits for FDA Class I laser for IEC60825, EN60825,
and 21CFR1040 specifications.
Translated Safety Warnings
Warning Class I laser product.
Advarsel Laserprodukt av klasse I.
Waarschuwing Klasse-I laser produkt.
Aviso Produto laser de classe I.
Varoitus Luokan I lasertuote.
¡Advertencia! Producto láser Clase I.
Attention Produit laser de classe I
Varning! Laserprodukt av klass I.
Warnung Laserprodukt der Klasse I.
Aviso Produto a laser de classe I.
Avvertenza Prodotto laser di Classe I.
Advarsel Klasse I laserprodukt.
FCC Regulations
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part
15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user
will be required to correct the interference at the user's own expense.

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Canadian Regulations
This digital apparatus does not exceed the Class A limits for radio noise for digital apparatus set out on the radio
interference regulations of the Canadian Department of Communications.
Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant les limites applicables aux
appareils numériques de la Class A prescrites dans le Règlement sur le brouillage radioélectrique édicté par le
ministère des Communications du Canada.
European Regulations
Warning : This is a Class A product. In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.
Achtung ! :Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses
Gerätes Rundfunkstörungen auftreten. In diesem Fäll is der Benutzer für Gegenmaßnahmen verantwortlich.
Attention ! : Ceci est un produit de Classe A. Dans un environment domestique, ce produit risque de créer des
interférences radioélectriques, il appartiendra alors à l'utilsateur de prende les measures spécifiques
appropriées.
In accordance with European Union Directive 2002/96/EC of the European Parliament and of the
Council of 27 January 2003, Transition Networks will accept post usage returns of this product for proper
disposal. The contact information for this activity can be found in the 'Contact Us' portion of this document.
Der Anschluss dieses Gerätes an ein öffentlickes Telekommunikationsnetz in den EGMitgliedstaaten
verstösst gegen die jeweligen einzelstaatlichen Gesetze zur Anwendung der Richtlinie 91/263/EWG zur
Angleichung der Rechtsvorschriften der Mitgliedstaaten über Telekommunikationsendeinrichtungen
einschliesslich der gegenseitigen Anerkennung ihrer Konformität.
CAUTION: RJ connectors are NOT INTENDED FOR CONNECTION TO THE PUBLIC TELEPHONE
NETWORK. Failure to observe this caution could result in damage to the public telephone network.
Der Anschluss dieses Gerätes an ein öffentlickes Telekommunikationsnetz in den EGMitgliedstaaten
verstösst gegen die jeweligen einzelstaatlichen Gesetze zur Anwendung der Richtlinie 91/263/EWG zur
Angleichung der Rechtsvorschriften der Mitgliedstaaten über Telekommunikationsendeinrichtungen
einschliesslich der gegenseitigen Anerkennung ihrer Konformität.
Record of Revisions
Rev
Date
Notes
A
3/25/20
Initial release.
Trademarks: All trademarks and registered trademarks are the property of their respective owners.
Copyright restrictions: © 2020 Transition Networks. All rights reserved. No part of this work may be reproduced or used in
any form or by any means - graphic, electronic or mechanical - without written permission from Transition Networks.