S-QSFP(100G) Loopback

Luxshare-TECH’s Super QSFP(100G) passive electrical loopback module is used for high speed testing application for QSFP host ports. The Super QSFP loopback is designed for 100Gigabit Ethernet applications, which the loopback provides 4x28Gbps RX and TX lanes, I2C module management interface and all the QSFP SFF hardware signals. This Loopback module loops back 4-lane 28Gb/s transmit data from the Host back to 4-lane 28Gb/s receive data port to the Host, it provides an efficient way to verify QSFP ports during R&Dtest, production testing and field testing.

  • High speed signals Loopback: TX are electrically looped back to RX per lane with attenuation options at 28Gbps/lane
  • Data communication interface: The Loopback Module supports the same 12C interface as optical module
  • LED indicator: A dual-color LED shows low/high power mode satus and 12C enable/disable status
  • Power control: Power dissipation could be controlled by 12C artificially, Range 0-6W(Q), resolution is 0.2W
  • Temperature monitor: 2 sensors on PCBA, another two closed to shell. Temp data could be read by 12C
  • Cut-off temperature : A Cut-off temperature is pre-defined by register. Avoiding the overheating.
  • Insertion counter: Insertion action could be counted and it is nonvolatile
  • Votage monitoring: Vcc could be detected. Range 0~3600mV, Resolution 0.1mV
  • Device information read /write access right: System ID, Revision, Module dynamic info. Password entry etc
  • Low sped signal : Modsel, Reset, Lpmode, Modprsl, IntL, SCL&SDA etc
  • Visual software interface: Intelligent user interface available

Product Numbers Product Description
LA0QF139-SD-R Super QSFP Loopback-5dB
LA0QF141-SD-R Super QSFP Loopback-0dB