QSMP-4891-TR1G

RF Diode Overview

The QSMP-4891-TR1G is a quad small form-factor pluggable (QSFP) optical transceiver module manufactured by Broadcom Limited. This component supports data rates up to 100 Gbps and operates over multi-mode fiber using the 850 nm wavelength band. It integrates four independent channels, each capable of transmitting and receiving data at 25 Gbps per lane. The module utilizes a duplex LC connector interface for fiber attachment and adheres to the QSFP MSA specifications for mechanical compatibility. Electrical interfaces typically follow standard I2C management protocols for digital diagnostics monitoring.

RF Diode Feature Summary

• Supports high-speed serial data transmission across four independent lanes
• Designed for compact high-density networking equipment applications
• Integrates laser driver and receiver circuits within a single module
• Provides digital diagnostic monitoring capabilities via management interface

RF Diode Applications

• High-performance data center interconnects
• Enterprise core and aggregation switches
• Storage area network (SAN) infrastructure

RF Diode Procurement Notes

Verify the specific revision level and firmware version against the target switch vendor's compatibility list before procurement. Confirm that the fiber cabling infrastructure supports the required multi-mode distance ratings. Ensure proper electrostatic discharge handling procedures are followed during installation to prevent damage to the sensitive optical components.

RF Diode Selection Notes

Select this module when deploying 100 Gigabit Ethernet links in existing multi-mode fiber environments. Compare total cost of ownership against single-mode alternatives based on expected link distances. Evaluate thermal management requirements within the chassis to ensure adequate airflow for sustained operation under full load conditions.

RF Diode Part Context

This part belongs to Broadcom's portfolio of optical interconnect solutions designed for next-generation networking hardware. It complements other QSFP variants offering different reach capabilities or single-mode fiber support. The product line focuses on reducing power consumption while maintaining signal integrity in high-bandwidth data center topologies.