【Main Parameters】Loopback tester are with SC connector plug for APC end face and single-mode fiber; supports -20~70℃ operating temperature 【Operating Principle】 Pairwise connected TX transmitting face transmit the signal back to the RX receiver face to test and evaluate the elements or interfaces of the optical fiber network. 【Stable Signal Transmission】 the looper adopts A-level zirconium ceramic core, which is low insertion loss (≤0.3db) and low return loss ( ≥60db), high interchangeability (≤0.2db) and high repeatability (≤0.2db) 【Standard Size】 The product meets the dual fiber adapter size standard for easy and accurate plug and pull，which can work more than 1000 times. 【Widely Application】 it can detect potential abnormalities by testing the signal return of optical system debugging, optical fiber communication system, CATV system, etc. 【Product description】
The fiber loopback is mainly used to test the signal return in the system or network system.
It can detect potential abnormalities in the network link by the signal return( the pairwise connected TX transmitting end-face send the signals back to the RX receiving end-face),
and achieve the test and evaluation of individual single elements or interfaces on the fiber network.

【Product detail】
Connector type: SC-for APC
Connector color: green
Fiber type: single mode
Cacket material: PVC
Optical cable color: yellow
Insertion loss:≤ 0.3db
Return loss:≥60db
Repeatability: ≤0.2db
Interchangeability: ≤0.2db
Operating temperature: -20~70℃
Storage temperature: -40~80℃
Packing Quantity: 4 PCS