Description
MPO Loopback Connector is designde for testing of MPO parallel links and for device burn-in. By creating a loop of signal from transmitter to receiver within one MPO piug,it forms optical link which allows testing of optical network segment by segment.
Features:
4 fibers, 8 fibers, 12 fibers available
Standard loss and low loss available
Single mode APC or multi-mode PC available
Standard and customized fiber sequence available
Stable and reliable testing parameters of male and female connectors’ pin positioning
Specifications:
| Fiber type | single mode | multimode | |
| Standard insertion loss | typical（dB） | 0.35 | 0.35 |
| Maximum（dB） | 0.75 | 0.60 | |
| Low insertion loss | typical（dB） | 0.20 | 0.20 |
| Maximum（dB） | 0.35 | 0.35 | |
| Return loss （dB） | ≥60（APC） | ≥20（PC） | |
| ≥50（PC） | |||
| Tensile Strength (kgf ) | 10 | ||
| Durability （dB） | ≤0.2 500 matings | ||
| working temperature （℃） | －40 ～+85 | ||
| Test wavelength （nm） | 1310 | 850 | |
MPO Attenuated Loopback is usde to test network devices transmitting capability and receiving sensitivity. Predetermined attenuation value greatly reduce tester cost and improve efficiency. 
