Wandtec offers the industry’s most robust loopback testers, SmartLoop, emulating the copper cable and Optical module signal integrity performance for Ethernet switch/Network Interface Card/Ethernet port testing up to 2000+ mating cycles.
Our cost saving 0-dB power LC loopback testers help industry’s equipment and device makers to go-to-market by reducing the consumable testing cost 50%+.
Our loopback supports 10G-800G Ethernet testing with technical compliance to IEEE/OIF-CEI standards in the form factor of SFP/QSFP/SFPDD/DSFP/QSFPDD/OSFP.
Loopback testers emulate the copper cable/optical module signal integrity and validate the port functions.

Low-Cost Loopback Series
• 500+ mating cycles
• -40-100c operating temperature support
• 0-dB power consumption
• Enhanced pull-tab for frequent plug/unplug
• 30% cost of conventional loopback
• Signal integrity performance compliant to IEEE/QIF
Low Cost Loopback & Training Cable | Mating Cycles |
---|---|
SFP+/SFP28/SFP56 LC Loopback | Min 500 |
QSFP+/QSFP28/QSFP56 LC Loopback | Min 500 |
DSFP LC Loopback | Min 500 |
SFP-DD LC Loopback | Min 500 |
OSFP56 LC Loopback | Min 500 |
QSFP56-DD LC Loopback | Min 500 |
OSFP112 LC Loopback | Min 500 |

SmartLoop Series Loop Back Testers
• 2000+ mating cycles
• Software-controlled power consumption to emulate the optical modules
• CMIS 4.0 compatible
• -40-100C operating temperature support
• Signal integrity performance compliant to IEEE/OIF
SmartLoop Loopback Series | Power | Mating Cycles |
---|---|---|
SFP+/SFP28/SFP56 SmartLoop Loopback | 2.5-5W, 0.5W Programmable | 2000 |
QSFP+/QSFP28/QSFP56 200G Smartloop | 0-7W, 0.5W Programmable | 2000 |
QSFPDD 400G Smartloop | 0.0-20W, 0.5W Programmable | 2000 |
QSFPDD800 800G Smartloop | 7.0-30W, 0.5W Programmable | 2000 |
OSFP 400G Smartloop | 7-20W, 0.5W Programmable | 2000 |
OSFP112 800G Smartloop | 7-30W, 0.5W Programmable | 2000 |