Optical loopback module that sends the transmit signal back to the receive side of the same duplex port: essential to test an SFP module, switch or transmission equipment without external cabling.
- Pack of 2 loopback adapters
- SC or LC duplex connectors
- Single-mode (UPC) or multimode, OM3, OM4
- Telecom grade: interchangeable, stable performance, high return loss
- Compact body with grip
