| Item | SFP+ DAC | 10GBASE-T RJ45 | SFP+ module |
Transmission medium | Twisted pair | Twisted pair | Optical cable |
Connector type | integrated | RJ45 | LC |
Transmission distance | 7m | 30m | >100m |
Wiring system | No | Copper cabling | Optical cable wiring |
Data rate | 10Gbps | 10Gbps | 10Gbp |
1. At present, the link distance between the devices in most data centers is between 10m and 100m. Using 10G SFP+ electric port optical module can make up for the shortage of high-speed cable transmission distance of SFP+.
2. The optical module of 10G copper adopts RJ45 interface, which is used together with super class VI or class VII network cable, while the cost of copper cable wiring is lower than that of optical cable wiring.
3. 10G SFP+ copper module can be directly used in the existing copper cabling system to realize 10G transmission, while the use of the SFP+ optical module requires the use of optical cables for wiring, which will increase the deployment cost. If you want to use the SFP+ optical module in the existing copper cabling system, you need to add equipment such as Ethernet switch or photoelectric converter.
Precautions when purchasing 10G copper module:
1. There is a choice of multi rate or single rate. 10G rate copper modules support multi rate (1-10Gb / s) and single rate (10Gb / s).
2. The operating temperature range is different. 10G copper module has commercial and industrial temperature. The commercial temperature range is 0~70 ℃, and the industrial temperature is - 45~85 ℃.
3. The main chip is different.
