| Item | Value |
|---|---|
| Basic Information | |
| Module name | 50Gbps-QSFP28-SMF-1295nm(Tx)/1309nm(Rx)-40km-commercial |
| Part Number | 02312EVX |
| Model | QSFP28-50G-BIDI-40km-SM-2 |
| Form factor | QSFP28 |
| Application standard | IEEE 802.3bm-2015, 50GBASE-BR40 |
| Connector type | LC |
| Optical fiber type | SMF |
| Bit error ratio (BER) | <1x10E-12(after FEC) <2x10E-4(before FEC) |
| Working case temperature [°C(°F)] | 0°C to 70°C(32°F to 158°F) |
| DDM options | SFF-8636 |
| Environment standard | RoHS |
| Security standard | FCC Class B, IEC 60825-1 Class 1 |
| ESD(HBM1) [V] | 1000 V |
| Transmission rate [bit/s] | 53.125 Gbit/s |
| Target transmission distance [km] | 40 km |
| Transmitter Optical Characteristics | |
| Center wavelength [nm] | 1295 nm |
| Tx operating wavelength range [nm] | 1294.53 nm - 1296.59 nm |
| Maximum Tx optical power (AVG) [dBm] | 8 dBm |
| Maximum Tx optical power (OMA) [dBm] | 9 dBm |
| Minimum Tx optical power (AVG) [dBm] | 1.5 dBm |
| Minimum Tx optical power (OMA) [dBm] | 4.5 dBm |
| Minimum extinction ratio [dB] | 6 dB |
| Receiver Optical Characteristics | |
| Rx operating wavelength range [nm] | 1308.09 nm - 1310.19 nm |
| Rx sensitivity (AVG) [dBm] | -15 dBm |
| Rx sensitivity (OMA) [dBm] | -13.5 dBm |
| Overload power (AVG) [dBm] | -3 dBm |
| Overload power (OMA) [dBm] | - |
NOTE:
The optical power calculation is based on the OMA value. If the module needs to reach the nominal data, the board FEC function must be enabled. The optical power read by the device is the average optical power, not the OMA optical power. 1. To keep the optical module running stably for a long time, set the receive optical power less than -4 dBm. (According to IEEE 802.3, if the receive optical power exceeds -2.3 dBm, the optical module may be permanently damaged.) 2. Before connecting the optical module, you are advised to use the optical power meter to measure the receive optical power (P). If P is less than -4 dBm, the optical module can be directly connected. If P is greater than -4 dBm, add an appropriate attenuator at the receive end to ensure that P is less than -4 dBm. Alternatively, add an appropriate attenuator (the recommended value is no less than 10 dB) before the optical module is connected, and then adjust the attenuator according to the actual situation to prevent the module from being damaged. 3. If the pigtail loopback or short-distance connection of the optical module is used, the attenuator must be added. It is recommended that the attenuator be greater than or equal to 10 dB. 4. When this type of optical module is used to interconnect with a WDM device, the 1+1 protection switching duration on the client side of the WDM device is longer than 50 ms. |
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