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This user's guide provides information for Copper SFP transceiver modules, as well as instructions for installing, connecting and removing these transceivers.Copper SFP transceiver
modules are hot-pluggable - you can insert them into SFP module slots and remove them without interrupting the host system. Copper SFP Transceiver Modules: The SFP modules uses 3.3V power input and RJ-45 connectors.
Read the following guidelines before installing and using Copper SFP transceiver modules.Handling Warning
: Copper SFP are static sensitive. To prevent damage from electrostatic discharge (ESD), it is recommended to attach an ESD preventative wrist strap to your wrist and to a bare metal surface when you install or remove a Copper SFP module.Safety Warning
: Only trained and qualified personnel should be allowed to install or replace these modules, Dispose of your Copper SFP module according to all national laws and regulations.
Installing and Removing Copper SFP Modules
The Copper SFP module installation and removal procedures are described in this section.
Note: Disconnect all UTP (Unshielded Twisted Pair) cables before removing or installing a Copper SFP module. Do NOT remove and insert Copper SFP modules more often than is absolutely necessary. Doing so may shorten the useful life of SFP modules.
Installing a Copper SFP module
Follow the steps below to install a Copper SFP module.
- Attach an ESD preventive wrist strap to your wrist and to a bare metal surface.
- Remove the Copper SFP module from its protective packaging.
- Find the Copper SFP markings on the SFP module.
- Align the Copper SFP module in front of the slot opening.
- Insert the Copper SFP module into the slot until you feel the Copper SFP module snaps into place.
Follow the steps below to connect UTP cables to the Copper SFP module.
- Insert UTP cable into the RJ-45 connector of Copper SFP module.
- Make sure to push UTP cable into the Copper SFP module with RJ-45 already latched.
Removing a Copper SFP module
Follow the steps below to remove an SFP module.
1. Attach an ESD preventive wrist strap to your wrist and to a bare metal surface
2. Disconnect the UTP cable from the SFP module.
3. Unlock and remove the Copper SFP module, as shown in the figures below.
Pull out the latch and down to unlock the SFP module.
Using your thumb and index finger, grasp the tabs on both sides of the module and carefully slide it out of the slot.
4. Place the removed SFP module in the protective packaging or antistatic bag.
Recommended 1000BASE-T SFPs with RJ45 Interface
To save more money, I suggest to purchase SFP module form OEM manufacturer, such as Fiberstore Inc. The following list is recommended 1000BASE-T SFP transceivers.
- Cisco GLC-T, 1000BASE-T Copper RJ45 100m SFP transceiver module for Category 5 copper wire compatible with Cisco GLC-T SFP module.
- Cisco SFP-GE-T, 1000BASE-T Copper RJ45 SFP 100m transceivers are based on the SFP Multi Source Agreement (MSA).
- HP JD089B X120 compatible 1000BASE-T SFP copper RJ45 100m transceiver module.
- Netgear AGM734 SFP RJ45 compatible 1000BASE-T SFP Copper 100m.
- Linksys MGBT1 compatible 1000BASE-T SFP 100m transceiver module
- Finisar FCLF-8521-3 compatible 10/100/1000BASE-T transceiver Copper SFP 100m.
Use a transceiver module for connection to
a remote device. The SFP (also known as mini-GBIC) and SFP+ transceiver
modules are hot swappable. This means that you can install and remove a
module while your device is operating. The SFP and SFP+ modules provide
duplex single-mode or multi-mode connections. SFP Transceiver Modules
The SFP module uses 3.3V power input and either duplex LC-type
connectors or RJ-45 connector (e.g. HP J8177C). SFP+ Transceiver Modules The SFP+ module uses single 3.3V power input and duplex LC connector interface.
Note: SFP and SFP+ are
static sensitive. To prevent damage from electrostatic discharge (ESD),
it is recommended you attach an ESD preventive wrist strap to your wrist
and to a bare metal surface when you install or remove a SFP or SFP+
module. SFP and SFP+ modules are dust sensitive. When not in use, always
keep the dust plug on. Avoid getting dust and other contaminant into
the optical bores, as the optics do not work correctly when obstructed
Note: Optical SFP and
SFP+ modules are equipped with a Class 1 laser, which emits invisible
radiation. To avoid possible eye injury, do not look into an operating
fiber-optic module's connectors. Laser radiation is present when the
device or system is powered up. Only trained and qualified personnel
should be allowed to install or replace these modules.
Installing and Removing an SFP/SFP+ Module
This section describes how you install
and remove a SFP or SFP+ transceiver module.
Note: Disconnect all
fiber-optic cables from an SFP/SFP+ module before installing or removing
it. Do NOT remove and install an SFP/SFP+ module more often than is
absolutely necessary. Doing so may shorten the useful life of the
Installing an SFP Module
Follow the steps below to install an SFP/SFP+ module.
- Attach an ESD preventive wrist strap to your wrist and to a bare metal surface.
- Remove the SFP/SFP+ module from its protective packaging.
- Locate the transmit (Tx) and the receive (Rx) markings on the SFP/SFP+ module.
- Align the SFP/SFP+ module in front of the slot opening on a device.
- Insert the SFP/SFP+ module into the slot until the SFP/SFP+ module snaps into place
Note: SFP/SFP+ module installation
orientation varies depending on your device. Your SFP/SFP+ module comes
with a mechanism that prevents incorrect insertion. Do NOT force or
twist the SFP/SFP+ module into a slot.
Connecting a Fiber-optic Cable
Follow the steps described to connect a
fiber-optic cable to the SFP/SFP+ module.
- Remove the dust plugs from the
SFP/SFP+ module and the cables.
- Identify the signal transmission
direction of the fiber-optic cable and
the SFP/SFP+ module. Insert one end of
the fiber-optic cable into the SFP/SFP+
- Insert the other end of the fiber-
optic cable into a remote device.
Refer to the user鈥檚 guide that comes with your device for SFP/SFP+ module slot status.
Removing an SFP/SFP+ Module
Follow the steps below to remove an SFP/SFP+ module.
- Attach an ESD preventive wrist strap to your wrist and to a bare metal surface on the chassis.
- Disconnect all fiber-optic cables from the SFP/SFP+ module.
- Insert the dust plug into the ports on the SFP/SFP+ module.
- Pull out the latch and down to unlock the SFP/SFP+ module.
- Using your thumb and index finger,
grasp the tabs on both sides of the
module and carefully slide it out of
Note: Do NOT force or twist the module out of a slot.
All of the guidelines above are also applied to Cisco SFP modules.
HP X121 1G SFP LC Transceiver Models
- HP J4858C 1000BASE-SX SFP 850nm 550m LC Transceiver
- HP J4859C 1000BASE-LX SFP 1310nm 10km LC Transceiver
- HP J4860C 1000BASE-LH SFP 1550nm 70km LC Transceiver
HP X121 1G SFP LC SX Transceiver (J4858C)
HP J4858C – 1000BASE SX transceiver that provides a full-duplex Gigabit solution up to 550 m on multimode fiber.
- Ports: 1 LC 1000BASE-SX port; Duplex: full only
- Wavelength: 850nm
- Cable length: 2-550m
- Cabling Type: 2.5/125 μm or 50/125 μm (core/cladding) diameter,
graded-index, low metal content, multimode fiber optic, complying with
ITU-T G.651 and ISO/IEC 793-2 Type A1b or A1a, respectively
- Maximum distance:
2-220 m (62.5 μm core diameter, 160 MHz*km bandwidth)
2-275 m (62.5 μm core diameter, 200 MHz*km bandwidth)
2-500 m (50 μm core diameter, 400 MHz*km bandwidth)
2-550 m (50 μm core diameter, 500 MHz*km bandwidth)
HP X121 1G SFP LC LX Transceiver (J4859C)
HP J4859C – 1000BASE LX SFP Transceiver: An SFP format gigabit transceiver with LC connectors using LX technology.
- Wavelength: 1310nm
- Ports: 1 LC 1000BASE-LX port (IEEE 802.3z Type 1000BASE-LX); Duplex: full only
- Cabling Type: Either single mode or multimode; 62.5/125 μm or 50/125
μm (core/cladding) diameter, graded-index, low metal content, multimode
fiber optic, complying with ITU-T G.651 and ISO/IEC 793-2 Type A1b or
A1a, respectively; Low metal content, single-mode fiber-optic, complying
with ITU-T G.652 and ISO/IEC 793-2 Type B1;
- Maximum distance:
2-550 m (multimode 62.5 μm core diameter, 500 MHz*km bandwidth)2-550 m (multimode 50 μm core diameter, 400 MHz*km bandwidth)
2-550 m (multimode 50 μm core diameter, 500 MHz*km bandwidth)
2-10,000 m (single-mode fiber)
- Note: A mode conditioning patch cord may be needed in some multimode fiber installations.
HP X121 1G SFP LC LH Transceiver (J4860C)
HP J4860C – Gigabit LH transceiver that provides a full-duplex Gigabit solution up to 70 km on single-mode fiber.
- Wavelength: 1550nm
- Ports: 1 LC 1000BASE-LH port (no IEEE standard exists for 1550 nm optics); Duplex: full only
- Cable type: Low metal content, single-mode fiber-optic, complying with ITU-T G.652 and ISO/IEC 793-2 Type B1;
- Maximum distance: 10-70,000 m (single-mode fiber)
Power consumption is 0.8 watts typical with 1 watt maximum at 100%
utilization.For distances less than 20 km, a 10 dB attenuator must be
For distances between 20 km and 40 km, a 5 dB attenuator must be used.
Attenuators can be purchased from most cable vendors.
HP SFP transceivers offered by Fiberstore
are third-party optical modules certified fully compatible with HP
Switches & Routers. The HP SFP modules can be mixed and deployed
with HP OEM SFP transceivers for seamless network performance and
interoperability. Fiberstore provides HP compatible SFP transceivers
which can be equivalent to HP JD118B, HP JD092B, HP JD089B, HP J9143B, HP J8177C, etc.
The SFP transceiver modules are
hot-pluggable I/O devices that plug into module sockets. The transceiver
connects the electrical circuitry of the module with the optical or
copper network. Cisco SFP transceiver
module supports the Cisco Quality Identification (ID) feature which
allows a Cisco switch or router to identify and validate that the
transceiver module is certified and tested by Cisco.
An optical SFP transceiver module is shown in Figure 1.
Figure 1 SFP Transceiver Module (Fiber-Optic LC Connector)
A copper SFP transceiver module in shown in Figure 2.
Figure 2 1000BASE-T SFP Transceiver Module (RJ-45 Connector)
Some product numbers and brief description of the SFP and SFP+ transceiver modules:
10 Gigabit Ethernet
- SFP-10G-SR Cisco 10GBASE-SR SFP+ transceiver module for MMF, 850-nm wavelength
- SFP-10G-LR Cisco 10GBASE-LR SFP+ transceiver module for SMF, 1310-nm wavelength
- SFP-H10GB-CU1M Cisco 10GBASE-CU passive Twinax SFP+ cable assembly, 1 meter
- SFP-H10GB-CU3M Cisco 10GBASE-CU passive Twinax SFP+ cable assembly, 3 meters
1 Gigabit Ethernet
- GLC-SX-MM Cisco 1000BASE-SX SFP transceiver module for MMF, 850-nm wavelength, commercial operating temperature range.
- GLC-SX-MM-RGD Cisco 1000BASE-SX SFP transceiver module for MMF, 850-nm wavelength, industrial operating temperature range.
- GLC-SX-MMD Cisco 1000BASE-SX SFP transceiver module for MMF, 850-nm wavelength, extended operating temperature range.
- GLC-T 1000BASE-T SFP transceiver module for copper networks, commercial operating temperature range.
- SFP-GE-T 1000BASE-T SFP transceiver module for copper networks, extended operating temperature range.
- GLC-FE-100FX 100BASE-FX SFP module for 100-Mb ports, MMF, 1310-nm wavelength, commercial operating temperature range.
- GLC-FE-100FX-RGD 100BASE-FX SFP module for 100-Mb ports, MMF, 1310-nm wavelength, industrial operating temperature range.
- GLC-GE-100FX 100BASE-FX SFP module for Gigabit Ethernet ports, MMF, 1310-nm wavelength, commercial operating temperature range.
- GLC-FE-100LX 100BASE-LX10 SFP module for 100-Mb ports, SMF, 1310-nm wavelength, commercial operating temperature range.
See the full product numbers of SFP and SFP+ transceiver modules: Cisco SFP offical site.
Installing SFP and SFP+ Transceiver Modules
Step 1 Attach an ESD-preventive wrist strap to your wrist and to the ESD ground connector or a bare metal surface on your chassis.
Step 2 Remove the SFP transceiver module from its protective packaging.
Step 3 Check the label on the SFP transceiver module body to verify that you have the correct model for your network.
Step 4 Find the send (TX) and receive (RX) markings that identify the top side of the SFP transceiver module.
Step 5 Position the SFP transceiver module in front of the socket opening.
Step 6 Holding it and insert the SFP into the socket until you feel the connector latch into place.
Step 7 Press the SFP into the slot firmly with your thumb.
Step 8 To verify that the SFP is seated and latched properly:
- Grasp the SFP and try to remove it without releasing the latch.
- If the SFP can not be removed, it is installed and seated properly.
If the SFP can be removed, reinsert it and press harder with your thumb,
repeating if necessary until it is latched securely into the socket.
Step 9 Remove the dust plugs from the network interface cable LC connectors. Save the dust plugs for future use.
Step 10 Inspect and clean the LC connector’s
fiber-optic end-faces. See the following Tip for a pointer to a
fiber-optic inspection and cleaning white paper.
Step 11 Remove the dust plugs from the SFP transceiver module optical bores.
Step 12 Immediately attach the network interface cable LC connector to the SFP transceiver module.
Step 13 To connect 1000BASE-T SFP transceiver modules to a copper network, follow these substeps:
- Insert the Category 5 network cable RJ-45 connector into the SFP transceiver module RJ-45 connector.
- Insert the other end of the network cable into an RJ-45 connector on a 1000BASE-T-compatible target device.
Step 14 Observe the port status LED:
- The LED turns green when the SFP transceiver module and the target device have an established link.
- The LED turns amber while the STP feature discovers the network
topology and searches for loops. This process takes about 30 seconds,
and then the LED turns green.
- If the LED is off, the target device might not be turned on, there
might be a cable problem, or there might be a problem with the adapter
installed in the target device. See the Troubleshooting section of your
switch hardware guide for solutions to cabling problems.
What is the Ideal High-Speed Interconnect Solution?
The ideal high-speed interconnect solution
should have such features as optimized for short distances, low cost,
low power consumption, small cable bend radius, low cable weight, high
density, and low link latency. The only one solution which can meet all
the requirements is the direct attach active optical cables.
Direct attach active optical cables, or
active optical cables for short, are direct-attach fiber assemblies with
optical transceiver (SFP+, XFP, QSFP+, CXP etc.) connectors. They are
suitable for short distances and offer a cost-effective way to connect
within racks and across adjacent racks. Nowadays the Active Optical
Cable (AOC) is accelerating data connectivity for storage, networking,
and HPC applications. It leverages fiber optic technology for the
transmission of data while reducing the weight, density and power
consumption of traditional copper solutions. Note: Active optical cables
have signal amplification and equalization built into the cable
assembly, while passive optical cables don’t.
Advantages of Active Optical Cables
The AOC assemblies provide the lowest total cost solution for data centers by having the key advantages as following:
- Low weight for high port count architectures;
- Small bend radius for easy installations;
- Low power consumption enabling a greener environment.
Compared to Active & Passive Copper Cable Assemblies
1. Longer reach (> 7 meters), SFP+ DAC 10m
2. Lower weight and tighter bend radius enable simpler cable management
3. Thinner cable allows better airflow for cooling
4. Lower power consumption
5. No need for power-hungry conditioning ICs on the host board
6. Can be used in architectures with challenging cable routing
Compared to Optical Transceivers
1. Datacenter/Consumer friendly: No cleanliness issues in optical connector
2. Cost-optimized: Not constrained by optical interface specifications driven by longer reach applications
(Note: However, the active optical cables cannot be routed through fiber patch panels.)
Ideal High-Speed Interconnect Solution
Today’s enterprise data centers and
networking environments are undergoing an infrastructure transformation,
requiring higher speeds, greater scalability, and higher levels of
performance and reliability to better meet the demands of business. As
speed and performance demands increase, the AOC assemblies have become
an integral part of the overall system design. However, AOC design
margins and parameters vary widely, and can be the difference between an
optimized, highly reliable fabric and the incompatibility issues that
drive up support costs. There are various types of AOC assemblies for
10G, 40G, and 100G applications on the market. Judging from the cost
performance, Fiberstore is the only one who can provide the most ideal
high-speed interconnect solution of QSFP+ assemblies including 40G QSFP+
AOC, 40G QSFP+ to 4×SFP+ AOC, and 40G QSFP+ to 8×LC AOC.
Article Source: Direct Attach Active Optical Cable Solution
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