HS-SFP-GE-LX20

Q: What is the HS-SFP-GE-LX20 used for?

It is the workhorse gigabit single-mode module: 1000Base-LX at 1310 nm over duplex LC, reaching 20 km on 9/125 µm single-mode fiber. Drop it into any SFP slot — our media converters and fiber switches, or standard-brand switch ports — to extend a gigabit link between buildings, floors or ISP nodes. It is hot-pluggable and draws under 1 W.

Q: Which distance grade should I order?

The family offers 1000Base-LX in 10 km (LX10) and 20 km (LX20) grades, plus a 1000Base-SX multi-mode version for 550 m inside buildings. The LX20 carries up to 15 dB of link budget with a -9 to -3 dBm transmitter and -24 dBm receiver sensitivity. Shorter grades cost less, so match reach to your actual fiber length rather than over-specifying.

Q: Is it compatible with my switch brand?

The module follows the multi-source agreement footprint with an SFF-8472 EEPROM, so it is recognized by standard SFP ports; coding for specific switch brands is available on request. Temperature grades cover commercial 0 to +70 °C and industrial -40 to +85 °C for outdoor cabinets. Everything is RoHS-compliant and laser class 1 per IEC 60825.

HS-SFP-GE-LX20

1.25G SFP transceiver — dual LC, 1310 nm FP, 20 km single-mode

1 × 1.25 Gb/s SFP, duplex LC1310 nm TX / 1310 nm RX (FP laser + PIN)20 km on 9/125 µm SMF1-Year Warranty

1.25 Gb/s, 1000Base-LX compliant

Duplex LC, 20 km on SMF

Hot-pluggable, +3.3 V, < 1 W

SFF-8472 EEPROM, MSA footprint

Commercial / extended / industrial temp

Technical Specifications

Ports	1 × 1.25 Gb/s SFP, duplex LC
Wavelength	1310 nm TX / 1310 nm RX (FP laser + PIN)
Transmission Distance	20 km on 9/125 µm SMF
Power Input	+3.3 V, supply current ≤ 300 mA
Power Consumption	< 1 W typical
TX Output Power	-9 ~ -3 dBm
Receiver Sensitivity	≤ -24 dBm (overload -3 dBm)
Operating Temperature	0 ~ +70 °C (commercial) / -40 ~ +85 °C (industrial)
Storage Temperature	-40 ~ +85 °C
Certifications	RoHS, IEC 60825 laser class 1

Ordering Information

Model	Description
HS-SFP-GE-LX20	1.25G, LC duplex, 20 km SM
HS-SFP-GE-LX10	1.25G, LC duplex, 10 km SM
HS-SFP-GE-SX-MM	1.25G, LC duplex, 550 m multi-mode

SC connector as default; FC/ST and other distances available on request. Power adapters: US plug default, EU/GB optional. SFP-slot models accept any MSA-compliant SFP module, including third-party brands (coding available on request).

FAQ

What is the HS-SFP-GE-LX20 used for?

It is the workhorse gigabit single-mode module: 1000Base-LX at 1310 nm over duplex LC, reaching 20 km on 9/125 µm single-mode fiber. Drop it into any SFP slot — our media converters and fiber switches, or standard-brand switch ports — to extend a gigabit link between buildings, floors or ISP nodes. It is hot-pluggable and draws under 1 W.

Which distance grade should I order?

The family offers 1000Base-LX in 10 km (LX10) and 20 km (LX20) grades, plus a 1000Base-SX multi-mode version for 550 m inside buildings. The LX20 carries up to 15 dB of link budget with a -9 to -3 dBm transmitter and -24 dBm receiver sensitivity. Shorter grades cost less, so match reach to your actual fiber length rather than over-specifying.

Is it compatible with my switch brand?

The module follows the multi-source agreement footprint with an SFF-8472 EEPROM, so it is recognized by standard SFP ports; coding for specific switch brands is available on request. Temperature grades cover commercial 0 to +70 °C and industrial -40 to +85 °C for outdoor cabinets. Everything is RoHS-compliant and laser class 1 per IEC 60825.