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

JUNIPER has model JNP-SFP-25G-SR/740-068639 optical module products, can support 25G Ethernet transmission 100M in multimode fiber, Moduletek 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 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 Optical module physical appearance

2. Module identification

JConnect 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 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 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 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	4.32	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.

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If you have any questions about the above content, please contact us via email: sales@moduletek.com

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