Loopback Modules

This section covers Sate Optics loopback modules for 10G, 25G, 40G, 100G and 400G ports, in SFP+, SFP28, QSFP+, QSFP28 and QSFP-DD form factors. A loopback folds a port’s transmit path back into its receiver, so ports and line cards can be tested without fiber or a far end.

Variants differ in attenuation — 0dB for plain loop checks, attenuated versions to simulate a fiber span — and in power load, including programmable loads that emulate a real module’s consumption for power and thermal verification.

Not sure which model fits? Send us your switch model and the distance you need to cover — we confirm compatibility before you order.

Every module in this range is coded for major networking platforms and 100% tested before shipment, and is covered by a 3-year warranty with lifetime maintenance. Standard lead time is 3–7 days for most products, and samples are available for evaluation.