Moduletek has launched a multi-mode optical module model QSFP-40G-SR4-C-G11, which can support 40G Ethernet applications. Moduletek has tested the samples of this model, which is convenient for you to further understand the core performance index of the module and the actual effect of the module in the use of the host computer.
1. Product Description
        The core performance indicators and physical images of the QSFP-40G-SR4-C-G11 module are as follows.
Table 1 Core performance indicators
Physical layer interface
Furthest transmission distance (m)
Operating temperature (℃)
Fiber Type
Fiber Interface Type
Wavelength (nm)
Transmit optical power @ per channel (dBm)
Received optical power @ per channel (dBm)
Maximum Power Consumption (W)
40GBASE-SR
400@OM4
0 ~ 70
MMF
MPO
850
-7.6 ~ 2.4
-9.5 ~ 2.4
1.5
 
Motek Optronics QSFP-40G-SR4-C-G11 Module Physical Drawing
Figure 1  Physical Drawing
2. Module identification
        This module supports 40G rate, insert the module into CISCO N3K-C3064PQ-10GE switch, the test module can be linked normally, the port indicator is lit; the module identification information is normal, the DOM is normal, the specific test data shown in Table 2:
Table 2 Link, identification and DOM information of module 
 
Module on CISCO N3K-C3064PQ-10GE switch 40G port
LINK
Identify
DOM data

3. Module key parameters testing
        The key parameters of module samples are tested in the laboratory of Moduletek under the housing temperature of 70℃, and the test results are shown in Table 3:
Table 3 Key parameters of module
Channel
Transmit optical power (dBm)
Receive sensitivity @1E-12 (over 400m@OM4 fiber) (dBm)
Power Consumption (W)
CH1
-2.88
-13.52
1.32
CH2
-2.84
-13.55
CH3
-2.75
-13.41
CH4
-2.85
-13.32
 
      The photo eye diagram of the module samples were tested under the shell temperature of 70℃, and the test results are shown in Table 4:
Table 4 Photoeye diagram of module
Photo-eye diagram of CH1
Photo-eye diagram of CH2
Photo-eye diagram of CH3
Photo-eye diagram of CH4

     The parameters of the optical eye diagram are shown in Table 5:
Table 5 Optical eye diagram parameters of module
Channel
Extinction ratio (dB)
P-P jitter (ps)
Rise Time (ps)
Down time (ps)
Margin value (%)
CH1
7.11
13.12
17.89
24.53
36.2
CH2
6.58
12.83
18.30
23.71
42.7
CH3
7.11
13.12
17.89
24.53
36.2
CH4
6.58
12.83
18.30
23.71
42.7

        The actual test data shows that the core performance index of QSFP-40G-SR4-C-G11 optical module is in accordance with the definition of Moduletek datasheet, and is comparable to the performance of the same type of module officially advertised by CISCO.
        Moduletek can provide cost-effective QSFP-40G-SR4 optical module products, welcome to purchase.
        If you have any questions about the above content, you can contact us by Email : web@moduletek.com.