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JUNIPER JNP-SFP-25G-SR Optical Module sample report

Time: 2024-01-03

      JUNIPER has model JNP-SFP-25G-SR/740-068639 optical module products, can support 25G Ethernet transmission 100M in multimode fiber, Motek Optoelectronics Laboratory of the product samples for testing, to facilitate a further understanding of the product's performance indicators and the effect of the actual machine use.
1. Product Description
      JUNIPER JNP-SFP-25G-SR optical module supports 100M link length on 25G standard multimode fiber (MMF) 50/125um with FEC negotiation enabled by the host. The official key parameter information and the physical appearance of the module are as follows:

Table 1 Official key parameters of JUNIPER JNP-SFP-25G-SR optical module

Part Number 740-068639
Speed 25 Gigabit Ethernet
Product Type Optical Transceiver
Transmitter wavelengths ( range ) 840 nm to 860 nm
Transmitter output power , each lane ( minimum ) -8.4 dBm
Transmitter output power , each lane ( maximum ) 2.4 dBm
Receiver input power , each lane ( minimum ) -10.3 dBm
Receiver input power , each lane ( maximum ) 2.4 dBm
Cable type MMF
Core size / cladding 50/125 μm
Fiber grade OM3                           OM4
Effective modal bandwidth 2000 MHz x km         4700 MHz x km
Distance 70 m                           100 m
Maximum Power consumption ( W ) 1.5 W


JUNIPER JNP-SFP-25G-SR optical module physical appearance

Figure 1 JUNIPER JNP-SFP-25G-SR optical module physical appearance

2. Module identification
      Connect the JNP-SFP-25G-SR module to JUNIPER QFX5200-48Y switch, access the patch cord, the module can be normal LINK, the port indicator lights up; module information can be recognized by the switch, such as the module type, vendor model number, etc.; you can read the DOM data, and the DOM data are within the threshold range, there is no alarm phenomenon.

Table 2 JUNIPER JNP-SFP-25G-SR Optical Module Recognized by the Switch

Item  Switch reading information
LINK

Identify

DOM data


3. Module key parameters testing
      a. The performance index of JNP-SFP-25G-SR sample module on the test plate is tested under 45℃ in the laboratory module shell, and the test results are as follows;

Table 3 JUNIPER JNP-SFP-25G-SR optical module performance indicators

  Parameter

Test data

Unit

Remarks

  Transmit optical power

-1.15

dBm

 

  Receiving sensitivity (without fiber)

-13.9

dBm

5E-5 BER

  Receive sensitivity (over 100m OM4 fiber)

-11.2

dBm

5E-5 BER

  Power consumption

0.831

W

 


      b. Sample module enclosure 45°C optical eye diagram test with the following eye diagram template and parameters:

JUNIPER JNP-SFP-25G-SR Optical Module Eye Diagrams

Figure 2 JUNIPER JNP-SFP-25G-SR Optical Module Eye Diagrams
 

Table 4 JUNIPER JNP-SFP-25G-SR Optical Module Eye Diagram Parameters

Temperature (°C)

Extinction ratio (dB)

P-P jitter (ps)

Rise time (ps)

Down time (ps)

Margin value (%)

45

4.32

11.94

16.56

19.44

35.2


      From the actual test situation, the key parameters of the module are in line with the official claims of JUNIPER.
      Moduletek Limited is at your service.
      If you have any questions about the above content, you can contact us by Email : web@moduletek.com

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