The difference between CSFP and SFP

Definition:

The compact small form-factor pluggable (CSFP) is a version of SFP with the same mechanical form factor allowing two independent bidirectional channels per port.

CSFP transceiver

CSFP vs SFP

Compact small form-factor pluggable CSFP transceiver and a compact small form-factor CSFP transceiver supports network systems, especially those deploying single-fiber bidirectional transceivers in high-density applications. The CSFP MSA defines a transceiver mechanical form-factor with latching mechanism and a host board, SFP-like, electrical edge connector and cage. The CSFP MSA also defines a transceiver mechanical form-factor. The dual-channel CSFP has the same mechanical dimensions as the industry-standard SFP transceiver and is compatible with the standard SFP cage. The single-channel CSFP and CSFF are half the size of the industry-standard SFP and SFF packages. The CSFP design is modular to enable configurations of integrated 2ch modules. In future Eotpolink will develop 4ch CSFP modules. These highly integrated compact transceiver modules will enable network system vendors to increase port density and data throughput while reducing network equipment cost.

TransceiverData Rate/Application
Wavelength
Distance
Interface
SFP 

10/100M Ethernet

125M Ethernet

155M SDH/SONET

622M SDH/SONET

1000M Ethernet

10/100/1000M Ethernet

2.5G SDH/SONET

1.25G Ethernet/SDH/SONET/Fiber Channel

2.125G Fiber Channel/SDH/SONET

3G Video

3.072G LTE/CPRI/OBSAI

4.25G Fiber Channel 

DWDM

850nm

1310nm

1550nm

CWDM 1270nm~1610nm

CWDM 1430nm~1610nm

CWDM 1470nm~1610nm

BIDI WDM 1310/1490nm

BIDI WDM 1310/1550nm

BIDI WDM 1490/1310nm

BIDI WDM 1490/1550nm

BIDI WDM 1550/1310nm

BIDI WDM 1550/1490nm 

100m

300m

500m

550m

2km

3km

5km

10km

15km

20km

30km

40km

50km

70km

80km

120km

140km

150km 

LC

SC

RJ45 

CSFP1.25G Ethernet/SDH/SONET/Fiber Channel 

BIDI WDM 1310/1490nm

BIDI WDM 1490/1310nm 

10km

20km 

LC

What is the difference between SFP, BiDi SFP, and CSFP fiber optic transceiver?

Normal SFP module is dual-fiber transceiver which has two LC connectors. Two connectors respectively indicated TX and RX. The bidirectional sfp transceiver is single fiber transceiver which could be one LC or SC connector. The CSFP is a dual bidirectional SFP type that has the same form factor as a regular SFP, but can support 2 users that use BX type of optics.

Conclusion

CSFP concluded attribute integration involving a pair of classic single-fiber bidirectional SFP modules. The CSFP composition is made up of a pair of unbiased lighting emitting along with acquiring routes. Throughout every single station, you will find there's PLC BOSA unit is liable for optical indication acquiring plus the power indication is a key portion of CSFP module. The key differences make the modules work efficiently in their respective applications.

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