SFP optical module, SFP package - hot-plug small package module, its highest rate can reach 10G, mostly by LC interface. The SFP SMALL FORM PLUGGABLE English, can be understood as an upgraded version of the GBIC. SFP optical module volume ratio GBIC optical module to reduce the half, more than double the number of ports can be configured on the same panel multi. Other functions of the SFP module GBIC are consistent. So some switch manufacturers SFP optical module called miniaturization GBIC (MINI-GBIC)
SFP optical modules constitute:
Laser: transmitter TOSA and receiver ROSA
PCB IC
External accessories: housing, base, PCBA, pull ring, buckle, unlock pieces of rubber stopper.
In addition, in order to identify convenient, generally pull ring of color to identify the parameters of the module type. For example: Black pull ring is multimode, the wavelength is 850nm; blue wavelength 1310nm module; yellow is the wavelength of 1550nm module; purple wavelength 1490nm module.
SFP optical module:
1, in accordance with the rate divided 155M/622M/1.25G/2.125G/4.25G/8G/10G 155M and 1.25G currently on the market use more 10G technology is mature, the demand is rising gesture development future optical module products.
2, in accordance with the wavelength divided 850nm/1310nm/1550nm/1490nm/1530nm/1610nm, a wavelength of 850nm SFP multimode transmission distance in the 2KM less common like the Cisco GLC-SX-MM; wavelength for 1310/1550nm single-mode transmission distance 2KM more, relatively speaking, the three wavelengths price compared to the other three to be cheap.
If you do not identify the bare module, you will easily confused with general manufacturers, will distinguish the color of the pull ring, such as: black pull ring for multimode wavelength is 850nm; blue wavelength of 1310nm module; yellow is the wavelength of 1550nm module; purple is the wavelength of 1490nm module.
SFP optical modules constitute:
Laser: transmitter TOSA and receiver ROSA
PCB IC
External accessories: housing, base, PCBA, pull ring, buckle, unlock pieces of rubber stopper.
In addition, in order to identify convenient, generally pull ring of color to identify the parameters of the module type. For example: Black pull ring is multimode, the wavelength is 850nm; blue wavelength 1310nm module; yellow is the wavelength of 1550nm module; purple wavelength 1490nm module.
SFP optical module:
1, in accordance with the rate divided 155M/622M/1.25G/2.125G/4.25G/8G/10G 155M and 1.25G currently on the market use more 10G technology is mature, the demand is rising gesture development future optical module products.
2, in accordance with the wavelength divided 850nm/1310nm/1550nm/1490nm/1530nm/1610nm, a wavelength of 850nm SFP multimode transmission distance in the 2KM less common like the Cisco GLC-SX-MM; wavelength for 1310/1550nm single-mode transmission distance 2KM more, relatively speaking, the three wavelengths price compared to the other three to be cheap.
If you do not identify the bare module, you will easily confused with general manufacturers, will distinguish the color of the pull ring, such as: black pull ring for multimode wavelength is 850nm; blue wavelength of 1310nm module; yellow is the wavelength of 1550nm module; purple is the wavelength of 1490nm module.