Siemens 6GK5992-1AN00-8AA0 SCALANCE X SFP992-1LH 1000 Mbit/s LC Single-Mode 8-40 km SFP Transceiver Module

The Siemens 6GK5992-1AN00-8AA0 (SFP992-1LH) is a plug-in SFP transceiver for the SCALANCE X media module slot, adding one 1000 Mbit/s optical LC port. It runs single-mode fiber on the 1000BASE-EX link at 1550 nm and covers a range of 8 to 40 km. Operating temperature is -40 to +85 degrees C, and IP20 latched mounting keeps it fixed in the switch housing.

Technical Specifications

Certifications & Standards

• CE
• C-Tick
• BV
• EPD

Selection Notes

The LH designation marks the long-haul tier of the SFP992 family: 1550 nm optics push the range to 8-40 km, above the 30 km ceiling of the LD+ variant, but the 3 dB minimum link attenuation means it needs a minimum fiber loss and is not meant for very short runs. Choose it for inter-site links in the tens-of-kilometers range where the shorter LD/LD+ single-mode SFPs run out of optical budget, and step down to those variants once the link falls under 30 km, since they cost less for the same 1000 Mbit/s bandwidth. For distances beyond 40 km, the LH+ or ELH variant in the same family is required.