Description:
Fiber Optic Loopbacks are also called optical loopback adapters. They are designed for testing, engineering and the burnin stage of boards 
or other equipment. Optical loopback adapters provide system test engineers a simple but effective way of testing the transmission capability
and the receiver sensitivity of network equipment.

Features:
1. Fiber Loopback Module provides a media of return path for a signal, whether the signal is for testing purposes or due to network restoration
2. In the case of testing, the loopback signal is used for diagnosing a problem
3. Sending a loopback test to a network equipment, one at a time, is a technique for isolating a problem
4.The fiber G657.A1 ,G657.A2 Can be chioced. 0.9mm or 2.0mm
Application:
R&D
Fiber labs
Telecom testing
FTTX testing
Equipment interconnection
Device pig-tailing 
Premise networks
Patch panel applications
Communications connections
Loopback for network components testing



 

Optical Specifications:      

parameter	Singlemode	Multimode
Insertion loss(typical)	1.2dB	0.2dB
Insertion loss(Max)	1.5dB	0.7dB
Operating temperature range	-20°C to +75°C
Storage temperature range	-40°C to +75°C
Repeat Ability	< 0.2dB (500 Cycle Passed)

Geometric Specification:

Parameter	PC  Polishing		APC Polishing
	SC Type	LC Type
R.O.C	10~25mm	7~25mm	5~12mm
Apex Offset	<50um	<50um	<50um
Fiber Height	-125nm-50nm		-100nm-100nm
Polishing Angle			8°± 0.3°