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

Time: 2024-01-03
        H3C has model SFP-25G-SR-MM850 optical module products, which can support 25G Ethernet transmission 100M in multimode fiber, Moduletek 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 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

Physical appearance of H3C SFP-25G-SR-MM850 optical module
Figure 1 Physical appearance of 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 Optical Module Upstream Recognition
Item
Switch reading information
LINK
Identify
DOM Data

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 Optical module performance indicators
  Parameter
Test data
Unit
Remarks
  Transmit optical power
0.2
dBm
 
  Receiving sensitivity (without fiber)
-12.3
dBm
5E-5 BER
  Receive sensitivity (over 100m OM4 fiber)
-10.2
dBm
5E-5 BER
  Power consumption
0.75
W
 

        b. Sample module shell 45°C optical eye diagram test, eye diagram template and parameters are as follows:
H3C SFP-25G-SR-MM850 Optical Module Eye Diagrams
Figure 2 Optical Module Eye Diagrams

Table 4 Optical module eye diagram parameters
Temperature (°C)
Extinction ratio (dB)
P-P jitter (ps)
Rise time (ps)
Down time (ps)
Margin value (%)
45
4.09
12.30
17.22
19.98
30.5

        From the actual test situation, the key parameters of the module are in line with H3C's official claims.
        Moduletek Limited is at your service.
        If you have any questions about the above content, please contact us via email: sales@moduletek.com
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