Fiber Optics Solutions
četvrtak, 02.07.2015.
SFP modules: These Informations You Should Know
As the technology and market of optical transceivers continue to mature, SFP transceivers are now widely used in optical transmission solutions. These SFP modules are hot-swappable, which is highly helpful to designers in the Telecommunication industry. SFP transceiver is one of the most dependable device in optical transmission systems because the designs are based on a multi-source agreement (MSA) and are a pluggable form of SFF. Except these helpful information, here are some things you need to know about SFP transceiver modules.
The Applications of SFP Transceivers
SFP transceivers can support fiber networking standards such as Gigabit Ethernet, Fiber Channel and SONET. They also support a variety of other optical transmission systems as well. A compact and hot-swappable SFP transceiver can be used in all kinds of optical transmissions and telecommunications applications. These SFP Optics will connect a switch, router, or other network device. Most SFP transceivers can be found in popular networking systems such as Wide Area Networks (WANs), Metro Access Network, and Metro Core Network.
Types of SFP Transceivers
SFP transceivers are able to provide an excellent amount of variation to consumers. They have a various different transmitters and receivers types, allowing users to decide on the appropriate SFP transceiver for each link to offer the required optical reach over the available multi-mode fiber (MMF) or single-mode fiber (SMF).
The SFP module is usually offered in five different categories, including T, SX, LX, ZX, and DWDM. Take HP SFP module as example:
- for Copper Networks
JD089B and J8177C: operate on standard Category 5 unshielded twisted-pair copper cabling of link lengths up to 100 m - for multi-mode fiber
J4858C and JD118B: 850 nm, for a maximum of 550 m at 1.25 Gbit/s (gigabit Ethernet) - for single-mode fiber
J4859C: 1310 nm, for distances up to 10 km
JD061A and JD062A: 1310 nm, for distances up to 40 km
JD091A and J4860C: 1550 nm, for distances up to 80 km
Each one of these different kinds interface with copper cables and this permits the motherboard to communicate with the unshielded twisted pair (UTP). CWDM cables and single-mode bi-directional fiber optic cables will transmit data both upstream and downstream.
The Benefits of an SFP Transceiver
SFP transceivers are hot-swappable devices, that is to say that these SFP optics are compatible with many other devices including discrete components. They are also compatible to multiple setups across both fiber optic and copper channels. Whether you need both long or short distance communication, SFP transceivers can help.
Digital optical monitoring (DOM) is based upon the new and modern optical transceiver design. Consumers have the ability to monitor real-time parameters of the SFP. Optical inputs and output power, laser bias, and supply voltage will allow designers to monitor real-time.
Do not forget that an SFP cage may be needed for proper operation of the device. It’s usually mounted to the PCB board and will accept the transceiver. It eliminates extra manufacturing steps and reduces costs. SFP transceivers also have a higher optical reliability and will permit higher soldering temperatures. SFP transceivers are recommended by fiber optic component providers to ensure proper data transmission.
Related Recommendation
Fiberstore, the leading manufacturer and supplier of compatible fiber optic transceiver modules, has achieved a breakthrough in HP compatible transceiver modules and successfully commercialized. Not only SFP SX, SFP LX but also 10G SR SFP, 10G LR SFP transceiver, CWDM SFP+ transceiver modules are available now.
Oznake: SFP module, J4858C, J4859C, J8177C, JD118B, 10G LR SFP
petak, 06.02.2015.
FAQs about HP Mini-GBIC and SFP Transceivers
Q: Which ProCurve Mini-GBICs and SFPs are supported in which ProCurve products?
The ProCurve Networking Mini-GBIC Support Matrix specifies which Mini-GBICs and SFPs are compatible with which ProCurve products. General rules are:
- Only genuine HP Mini-GBICs and SFPs are consistent with HP products.
- The J8177B/C 1000Base-T Mini-GBIC is not supported in "dual personality" ports (which already include a gigabit copper LAN port).
- Newer ProCurve / ProVision products require revision "B" or later Mini-GBICs and SFPs (product number ends with the letter "B" or later, for example J4858B, J4859C).
Q: Are the "revision C" Mini-GBICs (J4858C, J4859C, J4860C) supported in all products that support the "Revision B" (J4858B, J4859B, J4860B) Mini-GBICs?
Yes, the "revision C" Mini-GBICs (J4858C, J4859C, J4860C) are supported in all ProCurve / ProVision products that support Mini-GBICs.
Q: Can I mix and match "B" and "C" mini-GBICs in a ProCurve switch?
Yes, "Revision B" and "Revision C" mini-GBICs can be used together in any ProCurve switch that supports mini-GBICs.
Q: Are the Mini-GBICs and SFPs hot-swappable?
Yes, all HP Mini-GBICs and SFPs are hot-swappable (they can be installed and removed while the switch is powered on). However, the network cable should be disconnected before removing the Mini-GBIC or SFP from the switch.
Best practice tip: After inserting a transceiver into a ProCurve / ProVision switch, the Mode LED will come on for two seconds while the transceiver is initialized. Do not remove the transceiver until the Mode LED has turned off. For the Switch 2600 and 2800 Series: After inserting a transceiver into a 2600 or 2800 switch, the "M" LED will come on to indicate that the mini-GBIC slot is active. Wait at least two seconds after the "M" LED comes on if you need to remove the transceiver.
Q: Which HP Mini-GBICs and SFPs are RoHS compliant?
All currently-shipping HP Mini-GBICs and SFPs are RoHS compliant. This includes:
- J4858C HP X121 1G SFP LC SX Transceiver
- J4859C HP X121 1G SFP LC LX Transceiver
- J4860C HP X121 1G SFP LC LH Transceiver
- J8177C HP X121 1G SFP RJ45 T Transceiver
- J9054C HP X111 100M SFP LC FX Transceiver
- J9099B HP X112 100M SFP LC BX-D Transceiver
- J9100B HP X112 100M SFP LC BX-U Transceiver
- J9142B HP X122 1G SFP LC BX-D Transceiver
- J9143B HP X122 1G SFP LC BX-U Transceiver
Q: When should I use the "auto-100" setting for my J8177C gigabit-copper Mini-GBIC?
The J8177C "auto-100" setting is helpful in connecting an 8200zl or 5400zl switch to an Avaya Cajun switch or Avaya G700 Media Gateway (PBX), which operate at 100 Mbps and send non-standard Ethernet preambles. Because of the non-standard preamble, those Avaya products send packets that the Switch zl 10/100/1000-T ports do not recognize. With the "auto-100" setting, the J8177C will operate at 100 Mbps, will auto negotiate the duplex and flow control, and will accept the non-standard packets. (NOTE: The "auto-100" setting can be used for only J8177C products, not for the J8177B.)
Q: What products do not support the J8177C but do support the J8177B?
The 9300m and 9400sl products do not support the J8177C version. Other than the 9300m and 9400sl products all other products that support the J8177B version will support the J8177C version.
Q: Where to buy compatible HP Mini-GBIC and SFP transceivers?
Fiberstore is a professional OEM manufacturer and supplier of optical networking solutions. They can supply 100% compatible HP Mini-GBIC and SFP transceivers, such as HP J4858C, HP JD119B, etc. According to your requirements, Fiberstore welcome any inquiry for customized fiber optical transceiver.
Reference Documents:
Oznake: J4859A, J8177C, J4858C, J4858B, HP SFP
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Ima Blogger, Just Share Various Fiber Optic Telecom Network Topics, Information, News, Questions, Sources and Network Solutions.