Fiber loopback manual#
Fiber loopback Patch#
Fiber loopback software#

Range ≤ 0.2 dB ( - 40 to +80 degree centigrade) the common fiber optic loopbacks types are: SC fiber optic loopback,FC fiber optic loopback,LC fiber optic loopback,ST fiber optic loopbacks,MT-RJ fiber optic loopback.Įxchange ability ≤ 0.2 (500 cycle passed) we also offer custom assemblies for fiber optic loopback. Lc Fiber optic loopbacks are with compact design, and they are compliant with fast ethernet, fiber channel, ATM and Gigabit ethernet. Spring Optical Communication Co.,Ltd makes the fiber optic loopbacks strictly according to industry standard, each of the cable is functionally tested before shipping, and we offer custom assemblies for fiber optic loopbacks such as custom connector configurations and special polished.

Fiber loopback Patch#

Similar as LC fiber optic patch cords, LC fiber loopback can be with various jacket types and cable diameters, and they can be with different terminations and length. Sending a loopback test to network equipment, one at a time, is a technique for isolating a problem. For the testing applications, the loopback signal is used for diagnosing a problem.

For details about the configuration guide and precautions, see the Alarm and Event Handling.LC Fiber Loopback testers is designed to provide a media of return patch for a fiber optic signal typically it is used for fiber optic testing applications or network restorations.For details, see the Hardware Description. Only some WSS boards support the optical-layer loopback function.

Fiber loopback manual#

The ADC0824 board is used as an example to describe manual optical-layer loopback via physical fiber connection.

Fiber loopback software#

Therefore, instead of performing fiber loopback on the DM and AM physical ports of the boards, you can directly configure software loopback on the NMS to avoid onsite operations. The WSS modules of some boards have internal optical ports for loopback. The DWSS20 board is used as an example to describe manual optical-layer loopback via physical fiber connection. The alarm is cleared only after all loopback configurations are deleted. After a loopback is configured, a LOOP_ALM alarm is generated on the IN port. The loopback path on the WSS board is as follows: IN->DM->AM->OUT. By checking the service transmission and receiving on the OTU board, you can determine whether the optical line between the OTU and WSS boards is normal. To implement the optical-layer loopback on the WSS board, you need to perform a fiber loopback on the DM and AM physical ports, and configure the logical fiber connection and loopback function between the DM and AM ports on the NMS. Mode 2: Configure a software loopback on the NMS without any manual fiber loopback operation. Mode 1: Manually create physical fiber connections, loop back the DM and AM ports of the WSS board using optical fibers, and configure logical fiber connections and loopback from the DM port to the AM port on the NMS. Specifically, services are transmitted and received through the same WSS board, and a loopback is performed at the DM/AM layer or internal port layer of the WSS board.Ĭurrently, optical-layer loopback can be implemented in two modes. Optical-layer loopback is performed to locate faults.