1G SFP BiDi LX 20 km, ᵀˣ1550 / ᴿˣ1310 nm, DDM, LC-Simplex, Singlemode

Universal SFP BiDi Transceiver
Use FLEXBOX to configure to almost any vendor
Double your bandwith by using only one fiber for transmit and receive
For 1000BASE-LX Ethernet links
Supported Data Rates: 1.05 Gbit/s - 1.25 Gbit/s
Up to 20 km via Singlemode OS2
LC-Simplex Connector
Digital Diagnocstic Monitoring (DDM)
Specs
  • 1550 nm
  • 20 km
  • 1.25 G
  • BiDi
Protocols
  • 1G ETH
  • 1G FC
Request compatibility
Part number
S.B1512.20.DL-MAR01
In stock
22 pcs
Back In Stock
  • ~Jun 3, 2025
    +101 pcs
  • ~Jun 12, 2025
    +1 pcs
Your price
45.05 EUR
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Just go to cart and click CREATE QUOTE.

Specification

Form Factor SFP
Connector / Polish LC-Simplex UPC
Interface Singlemode BiDi
Compliance Code BiDi LX
Operating Temperature Standard
Modulation NRZ
Distance 20 km
Temperature Range 0°C - 70°C
Bandwidth 1.05 Gbit/s - 1.25 Gbit/s
Digital Diagnostic Management (DDM) Yes, internally calibrated
Power Consumption 1 W
CDR none
SGMII No
Inbuilt FEC No
Powerbudget (dB) 14 dB
Transmit min/max per lane -8 dBm / -3 dBm
Receiver min/max per lane -22 dBm / -3 dBm (overload) @1G
Wavelength TX (Typical) 1550 nm
Wavelength TX (Range) 1520 - 1580 nm
Wavelength RX (Typical) 1310 nm
Wavelength RX (Range) 1260 - 1360 nm
Laser DFB
Receiver Type PIN
Modulation NRZ @1G
Extinction Ratio 9 dB
Supported Protocols 1G Fibre Channel, Gigabit Ethernet

Transceiver Configuration with FLEXBOX

It's that easy to use
Insert Transceiver into FLEXBOX
1. Insert Into FLEXBOX
Select and Configure
2. Select And Configure
  • Choose vendor and compatibility
  • Press play
  • Configuration only takes a few seconds
Use with Device
3. Use With Device
  • Use the transceiver in your device. That's it!
  • Need it for another device? - Re-configure it again and again

Compatibility

All trademarks, registered companies & references cited are the sole property of their respective company and are used solely to assist in the identification of products.

  • MSA Standard compatible
  • ADTRAN 1442120G1 compatible
  • ADVA 0061003013 compatible
  • Allied Telesis AT-SPBD20-14 compatible
  • Arista 3rd_Party SFP-1G-LX compatible
  • Arista SFP-1G-LX compatible
  • Aruba Networks(ex. HP Network) J4859C compatible
  • barox AC-SFP-BIB-LXE compatible
  • Bintec SFP-LC-TX/LX/LH compatible
  • Blackbox LFP420 compatible
  • Brocade / Ruckus E1MG-BXD compatible
  • Brocade E1MG-LX-OM compatible
  • Cisco Systems GLC-BX-D compatible
  • ComNet SFP-12B compatible
  • Coriant (ex. Tellabs) 81.S1GBEBX1153S compatible
  • Coriant (ex. Tellabs) 82.S1GBEBX1153S compatible
  • CTC Union ISFP-S7020-WB-D compatible
  • Dell 407-10588 compatible
  • Dell 407-BB00 compatible
  • Dell 407-BBOO compatible
  • DrayTek SFP.0BL.621.202 compatible
  • Edge Core ET4203-BX20D compatible
  • Extreme 10056 compatible
  • FiberPlex SFP-SC24BD-5531-B compatible
  • FibroLAN SF1G-SF15 compatible
  • Fortinet FG-TRAN-LX compatible
  • HP H3C JD119B compatible
  • Huawei SFP-GE-LX-SM1550-BIDI compatible
  • Infinera (ex. Transmode) TRX100075 compatible
  • Intel SFP LX compatible
  • Juniper SFP-GE20KT15R13 compatible
  • Korenix SFPGLX20B15D compatible
  • LANCOM SFP-LX-LC1 compatible
  • LevelOne SFP-9331 compatible
  • Marconi SU57AE compatible
  • MikroTik S-53LC20D compatible
  • Moxa SFP-1G20BLC compatible
  • Netgear AGM732F compatible
  • Nokia (ex. Alcatel-Lucent) 1AB393080006 compatible
  • Nokia (ex. Alcatel-Lucent) 3FE25772AB compatible
  • Nokia (ex. Alcatel-Lucent) SFP-GIG-BX-D compatible
  • Nokia Siemens Networks V50017-U412-K500 compatible
  • Nokia-Siemens (ex. Atrica) AT10077-0D-R compatible
  • Planet MGB-LB20 compatible
  • RAD SFP-17BD compatible
  • Raisecom USFP-GB/SS532-DL compatible
  • Siemens 6GK6000-8FB52-0AA0 compatible
  • Transition Networks TN-SFP-LXB22 compatible
  • TRENDnet TEG-MGBS10D5 compatible
  • Ubiquiti Networks UF-SM-1G-S YE compatible
  • Waystream (ex. Packetfront) SFP-1000BASE-BX20-D1550LC compatible
  • Westermo 1100-0559 compatible
  • Zyxel SFP-BX1550-20-D compatible
Your vendor / compatibility is missing?

What customers say

The FLEXBOX allows us to quickly configure our transceivers for every application. No more need to keep transceivers of every type and vendor in stock. Any problems with a transceiver configuration? Thanks to the lightning fast FLEXOPTIX Service Desk you’ll solve every issue as quick as possible.

Robert Niedermair IT Infrastructure Administrator / INTERCABLE AUTOMOTIVE SOLUTIONS S.r.l.

FLEXBOX makes it easier than ever to manage your optics hardware! From unboxing to a configured module in a minute! Great product.

Otto Lodewijk Director / SuitIT

We use FLEXOPTIX modules for years with different networking hardware. Amazing and very stable products without any issues. Preparing a big network project with several switch vendors it was time to do the next step and order a FLEXBOX. Now we can be much more flexible that before and the provided tools are fast, stable, easy to use and as stable as all other FLEXOPTIX producs. All in all - highest recommendation!

Matthias Götz Managing Director / Blue Taurus GmbH & Co. KG

Spending a few minutes of my time, first and foremost expressing how much I’m impressed by your friendliness, is the least I can do. Friendliness was followed by super-fast order processing and delivery. In a few words, unboxing and using your FLEXBOX is an utterly awesome experience. As in brilliant. Also saving us loads of time ordering optics. In addition to all of this – you deliver particular good build quality, too. You’ve got me impressed, thank you!

Mark van den Berg CTO / Icera Networks
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