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Zac67 ♦
Zac67 ♦
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0/100M Single mode WDM 20Km Tx1550nm/Rx1310nm

That's actually for the 100BASE-BX10 standard (-Downlink variant), boosted to 20 km. You can buy those SFP modules from some vendors. 100BASE-LX10 uses a pair of fibers, without WDM (or rather WDD). 100BASE-FX also uses a pair, but multi-mode fiber.

A more common 1000BASE-BX10-D module likely won't work because it uses a different center wavelength (1490/1310 nm instead or the 1550/1310 nm for 100BASE-BX10). Also, most switches/routers won't link to 100M with a 1G SFP - you're correct in that the SFP doesn't care about the link speed but the device will. Additionally, check module compatibility with your device before buying.

0/100M Single mode WDM 20Km Tx1550nm/Rx1310nm

That's actually for the 100BASE-BX10 standard (-Downlink variant), boosted to 20 km. You can buy those SFP modules from some vendors. 100BASE-LX10 uses a pair of fibers, without WDM (or rather WDD). 100BASE-FX also uses a pair, but multi-mode fiber.

A more common 1000BASE-BX10-D module likely won't work because it uses a different center wavelength (1490/1310 nm instead or the 1550/1310 nm for 100BASE-BX10). Also, most switches/routers won't link to 100M with a 1G SFP. Additionally, check module compatibility with your device before buying.

0/100M Single mode WDM 20Km Tx1550nm/Rx1310nm

That's actually for the 100BASE-BX10 standard (-Downlink variant), boosted to 20 km. You can buy those SFP modules from some vendors. 100BASE-LX10 uses a pair of fibers, without WDM (or rather WDD). 100BASE-FX also uses a pair, but multi-mode fiber.

A more common 1000BASE-BX10-D module likely won't work because it uses a different center wavelength (1490/1310 nm instead or the 1550/1310 nm for 100BASE-BX10). Also, most switches/routers won't link to 100M with a 1G SFP - you're correct in that the SFP doesn't care about the link speed but the device will. Additionally, check module compatibility with your device before buying.

added 73 characters in body
Source Link
Zac67 ♦
Zac67 ♦
  • 88k
  • 4
  • 73
  • 137

0/100M Single mode WDM 20Km Tx1550nm/Rx1310nm

That's actually for the 100BASE-BX10 standard (-Downlink variant), boosted to 20 km. You can buy those SFP modules from some vendors. 100BASE-LX10 uses a pair of fibers, without WDM (or rather WDD). 100BASE-FX also uses a pair, but multi-mode fiber.

A more common 1000BASE-BX10-D module likely won't work because it uses a different center wavelength (1490/1310 nm instead or the 1550/1310 nm for 100BASE-BX10). Also, most switches/routers won't link to 100M with a 1G SFP. Additionally, check module compatibility with your device before buying.

0/100M Single mode WDM 20Km Tx1550nm/Rx1310nm

That's actually for the 100BASE-BX10 standard (-Downlink variant), boosted to 20 km. You can buy those SFP modules from some vendors. 100BASE-LX10 uses a pair of fibers, without WDM (or rather WDD).

A more common 1000BASE-BX10-D module likely won't work because it uses a different center wavelength (1490/1310 nm instead or the 1550/1310 nm for 100BASE-BX10). Also, most switches/routers won't link to 100M with a 1G SFP.

0/100M Single mode WDM 20Km Tx1550nm/Rx1310nm

That's actually for the 100BASE-BX10 standard (-Downlink variant), boosted to 20 km. You can buy those SFP modules from some vendors. 100BASE-LX10 uses a pair of fibers, without WDM (or rather WDD). 100BASE-FX also uses a pair, but multi-mode fiber.

A more common 1000BASE-BX10-D module likely won't work because it uses a different center wavelength (1490/1310 nm instead or the 1550/1310 nm for 100BASE-BX10). Also, most switches/routers won't link to 100M with a 1G SFP. Additionally, check module compatibility with your device before buying.

Source Link
Zac67 ♦
Zac67 ♦
  • 88k
  • 4
  • 73
  • 137

0/100M Single mode WDM 20Km Tx1550nm/Rx1310nm

That's actually for the 100BASE-BX10 standard (-Downlink variant), boosted to 20 km. You can buy those SFP modules from some vendors. 100BASE-LX10 uses a pair of fibers, without WDM (or rather WDD).

A more common 1000BASE-BX10-D module likely won't work because it uses a different center wavelength (1490/1310 nm instead or the 1550/1310 nm for 100BASE-BX10). Also, most switches/routers won't link to 100M with a 1G SFP.