Juniper SFP-1G-LX-C · 740-011614

MPN / P/N

740-011614

Manufacturer model

SFP-1G-LX-C

Part Number

740-011614

Speed

Gigabit Ethernet

Breakout Capable

No

Form Factor

SFP

Product Type

Optical Transceiver

Connector

Duplex LC PC/UPC

Monitoring Available

Yes

Digital Optical Monitoring

Yes

1000BASE-LX / Cable type

SMF | MMF | MMF

1000BASE-LX / Core size/cladding

- | 62.5 µm (Refer the note below) | 50 µm (Refer the note below) Note: According to IEEE Std 802.3-2018, Clause 38.11.14. An offset-launch mode-conditioning patch cord is required for MMF operation of 1000BASE-LX. o If the cabling is 62.5µm MMF then the MMF used in the construction of the mode conditioner should be of type 62.5µm MMF. o If the cabling is 50µm MMF, then the MMF used in the construction of the mode conditioner should be of type 50µm MMF.

1000BASE-LX / Digital Diagnostic Monitoring

Tx Power Rx Power Tx Bias Current Case Temperature Power Supply Voltage

1000BASE-LX / Distance

10 km | 550 m | 550 m

1000BASE-LX / Effective modal bandwidth

- | 500 MHz x km | 500 MHz x km

1000BASE-LX / MSA compliance (SFF, for e.g. SFF-8665)

INF-8074i

1000BASE-LX / Maximum Power consumption (W)

1 W

1000BASE-LX / Operating Temperature (range)

–5° C to 70° C

1000BASE-LX / Optic Type (Commercial Vs Service Provider Grade)

Commercial

1000BASE-LX / Receive lane wavelengths (range)

1270 nm to 1355 nm

1000BASE-LX / Receiver input power, each lane (maximum)

-3 dBm

1000BASE-LX / Receiver input power, each lane (minimum)

-19 dBm

1000BASE-LX / Signaling rate, each lane

1.25 Gbps

1000BASE-LX / Standards compliance (Ethernet/OTN Standard, for e.g. 100GBASE-LR4)

1000BASE-LX

1000BASE-LX / Storage temperature

–40° C to 85° C

1000BASE-LX / Stressed receiver sensitivity (OMA) each lane (maximum)

-14.4 dBm

1000BASE-LX / Transmitter output power, each lane (maximum)

-3 dBm

1000BASE-LX / Transmitter output power, each lane (minimum)

-9.5 dBm

1000BASE-LX / Transmitter wavelengths (range)

1270 nm to 1355 nm

1000BASE-LX / Typical Weight & Dimensions

Weight: 0.15 kg Height: 8.55 mm Width: 13.55 mm Depth: 57.5 mm

Documented selection limits

Reach, rate, form factor and breakout support apply only to the listed standard/mode, fiber grade and platform/port configuration. Keep source qualifiers for FEC, attenuation, transmit/receive limits, temperature, active/passive operation and cable ends. Check Juniper HCT for the exact host, interface module, port mode, Junos release, required QSA adapter and qualifications before ordering. Do not infer universal interoperability or combine power/temperature/reach across model profiles. Optical link budgets are not calculated or inferred. Other model designations map to the same Part Number in HCT; primary specifications remain from SFP-1G-LX-C only. Parallel fiber/core/modal-bandwidth/distance values retain the same source column order; correlate matching columns instead of applying the largest distance to every fiber.

Reading parallel values

Pipe-separated fiber, bandwidth and reach values correspond by position in the original manufacturer column order. The longest reach does not apply to every fiber type.

Other designations for the same P/N — verify HCT profile

EX-SFP-1GE-LX · QFX-SFP-1GE-LX

Specification source: Juniper ↗
Checked against documentation: 19.10.2026