H3C SFP-25G-SR-MM850 Optical Module sample report

      H3C has model SFP-25G-SR-MM850 optical module products, which can support 25G Ethernet transmission 100M in multimode fiber, Moduletek Limited Laboratory has tested the sample of this product, which is convenient for you to know more about the product's performance indexes and the effect of the actual machine use.
1. Product Description
      H3C SFP-25G-SR-MM850 Optical Module supports 100M link length on 25G standard multimode fiber (MMF) 50/125um with FEC negotiation enabled by the host. The official key parameters and the physical appearance of the module are as follows:

Table 1 H3C SFP-25G-SR-MM850 Optical Module Key Parameters

Module/Cable Name	Center wavelength (nm)	Module Interface Connector Type	Interface cable specification	Mode bandwidth (MHz * km)	Maximum Transmission Distance	Interface Specifications (dBm)
						Output Optical Power	Received Optical Power
SFP-25G-SR-MM850	850	LC	50/125μm multimode fiber	2000	With FEC negotiation disabled : 30m With FEC negotiation on : 70m	8.4~+2.4	-10.3~+2.4
				4700	When FEC negotiation is turned off : 40m With FEC negotiation on : 100m

Figure 1 Physical appearance of H3C SFP-25G-SR-MM850 optical module

2. Module on-board identification
      Connect the SFP-25G-SR-MM850 module to the H3C S6850-56HF switch, access the patch cord, the module can be normally LINK, the port indicator lights up; the module information can be normally recognized by the switch, such as the module type, manufacturer's name, connector type, wavelength, transmission distance, and so on; you can read the DOM data, and the DOM data are within the threshold range, and there are no alarms. phenomenon.

Table 2 H3C SFP-25G-SR-MM850 Optical Module Upstream Recognition

3. Module key parameters testing
      a. Laboratory module shell 45 ℃ conditions, the SFP-25G-SR-MM850 sample module in the test version of the performance indicators are tested, test results are as follows;

Table 3 H3C SFP-25G-SR-MM850 optical module performance indicators

      b. Sample module shell 45°C optical eye diagram test, eye diagram template and parameters are as follows:

Figure 2 H3C SFP-25G-SR-MM850 Optical Module Eye Diagrams

Table 4 H3C SFP-25G-SR-MM850 optical module eye diagram parameters

      From the actual test situation, the key parameters of the module are in line with H3C's official claims.
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