QSFP+ Loopback

QSFP+ LoopbackQSFP/QSFP+ Passive Electrical Loopback EOLQ-XLB is used for testing QSFP/QSFP+ transceiver ports in board level test. The electrical loopback provides a cost effective low loss method for QSFP/QSFP+ port testing. The EOLQ-XLB is packaged in a standard MSA housing compatible with all QSFP/QSFP+ ports. Transmit data from the host is electrically routed, (internal to the loopback module), to the receive data outputs and back to the host. It provides an economical way to exercise QSFP/QSFP+ ports during R&D validation, production testing, and field testing. The EOLQ-XLB provides QSFP/QSFP+ power Class 1, 2, 3 (standard), or 4 loading using a customer supplied +3.3V voltage supply.



  • Customizable power consumption
  • Dual LED indicator
  • Custom Memory Maps
  • Built in diagnostic functions
  • Supports 40Gbps total data rate
  • Host-pluggable MSA footprint
  • Full SFF-8436 MSA Compliant
  • Temperature range from 0◦ to 80◦C
  • No reference clock required
  • Compliant with SONET, SDH, GBE, FC
  • MSA Compliant EEPROM
  • Economical QSFP/QSFP+ Port Testing
  • Custom Memory Maps
  • Board Level System Testing
  • Excellent Signal Integrity

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  • Eoptolink Technology Inc.,Ltd, No.127 West Wulian Street, Gongxing Town, Shuangliu County, Chengdu 610213, CHINA.
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