QSFP28-BX20D-23 – 100G BiDi Transceiver, 20km
Product Overview
The GLOBALfiber QSFP28-BX20D-23 is a high-performance 100GBASE-LR1 BiDi QSFP28 optical transceiver designed for 100 Gigabit Ethernet transmission over a single strand of Single Mode Fiber (SMF). Utilizing 1270nm TX and 1330nm RX wavelengths, this module enables efficient fiber utilization while delivering reliable 100G connectivity up to 20km.
Features
• Supports 100GBASE-LR1 BiDi transmission
• 100Gbps data rate
• PAM4 optical modulation
• Up to 20km transmission over Single Mode Fiber (SMF)
• EML laser transmitter
• PIN photodiode receiver
• CAUI-4 electrical interface (4 × 25.78Gbps NRZ)
• Simplex LC optical connector
• Integrated Digital Diagnostics Monitoring (DDM/DOM)
• Hot-pluggable QSFP28 MSA form factor
• Single 3.3V power supply
• Hardware TX Disable support
• RX Loss of Signal (RX_LOS) support
• Low power consumption
• RoHS compliant
• IEEE 802.3cu compliant
• SFF-8636 compliant
• SFF-8679 compliant
Technical Specifications
General
• Form Factor: QSFP28
• Data Rate: 106.25Gbps
• Ethernet Standard: 100GBASE-LR1
• Fiber Type: Single Mode Fiber (SMF)
• Connector Type: Simplex LC
• Maximum Reach: 20km
• Optical Modulation: PAM4
• Electrical Interface: CAUI-4
• Supply Voltage: 3.3V
• Maximum Power Consumption: 4W
• Operating Temperature: 0°C to +70°C
• Storage Temperature: -40°C to +85°C
• Relative Humidity: Up to 85%
• Compliance: IEEE 802.3cu, SFF-8636, SFF-8679
• Environmental Compliance: EU Directive 2015/863/EU (RoHS)
Optical Transmitter
• TX Wavelength: 1271nm (1264.5nm to 1277.5nm)
• Average Launch Power: -0.2dBm to +6.6dBm
• Optical Modulation Amplitude (OMA): +2.8dBm to +6.8dBm
• OMA minus TDECQ: = -0.7dBm
• Maximum TDECQ: 3.6dB
• Laser Off Output Power: = -15dBm
• Side Mode Suppression Ratio (SMSR): = 30dB
• Extinction Ratio: = 3.5dB
• Laser Technology: EML (Electro-Absorption Modulated Laser)
Optical Receiver
• RX Wavelength: 1331nm (1324.5nm to 1337.5nm)
• Receiver Sensitivity (OMA): = -7.6dBm
• Average Receive Power: -10dBm to +6.6dBm
• Receive Power OMA: Up to +6.8dBm
• Receiver Damage Threshold: +7.6dBm
• LOS Assert: -26dBm to -12dBm
• LOS De-Assert: -11dBm
• LOS Hysteresis: 0.5dB
• Receiver Technology: PIN Photodiode
Electrical Characteristics
Transmitter Input
• Input Differential Impedance: 100 Ohm
• Differential Input Amplitude: 80mVpp to 900mVpp
• Differential Termination Mismatch: Max 10%
• Common Mode Input Voltage: -0.3V to +2.8V
• Rise/Fall Time (20%-80%): 10ps
Receiver Output
• Output Differential Impedance: 100 Ohm
• Differential Output Amplitude: Up to 900mVpp
• Differential Termination Mismatch: Max 10%
• Rise/Fall Time (20%-80%): 12ps
• Output Low Voltage: 0V to 0.4V
• Output High Voltage: VCC-0.5V to VCC+0.3V
Digital Diagnostics Monitoring (DDM)
• Module Temperature Monitoring
• Supply Voltage Monitoring
• TX Bias Current Monitoring
• TX Optical Power Monitoring
• RX Optical Power Monitoring
Monitoring Accuracy
• Temperature Accuracy: ±3°C
• Voltage Accuracy: ±0.1V
• TX Bias Current Accuracy: ±10%
• TX Optical Power Accuracy: ±3dB
• RX Optical Power Accuracy: ±3dB
Applications
• 100G Ethernet Networks
• Data Center Interconnect (DCI)
• ISP and Broadband Networks
• Telecom Transport Networks
• Enterprise Backbone Networks
• Cloud Infrastructure
• Metro Ethernet Networks
• Fiber Capacity Expansion Projects
• Single Fiber Network Deployments