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Method and Device for Isolating Faults in Multi-Lane Links

IP.com Disclosure Number: IPCOM000216463D
Publication Date: 2012-Apr-09
Document File: 5 page(s) / 98K

Publishing Venue

The IP.com Prior Art Database

Abstract

A method and device for isolating faults in multi-lane links is disclosed. The disclosed method and device identifies and isolates the location of faults in an optical transmission.

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Method and Device for Isolating Faults in Multi -Lane Links

SUMMARY

Disclosed is a method and device for isolating faults in multi-lane links. Each multi-lane link is an integration of lanes, wherein each lane represents an optical fiber, and multiple fiber lanes are connected using one or more optical connectors. Two different devices, a straight wrap plug and a lane-reversed wrap plug, are In a scenario, the device used is a lane reversed plug. The lane reversed plug connects a transmitter and a receiver of an optical transmission path and provides a medium of transmitting optical signals from the transmitter to the receiver. The connection between the transmitter and the receiver is achieved by connecting transmitter lanes with receiver lanes. In a lane-reversed plug, the connection between the transmitter lanes and the receiver lanes are in reversed order. For example, Nth lane of the transmitter is connected to first lane of the receiver; N-1th lane of the transmitter is connected to the second lane and so on.

DEVICE DISCLOSURE

Fig. 1(a), and Fig. 1(b) illustrate the side view, top view and front view, respectively, of the straight and lane-reversed wrap plugs. At this level, both wrap plugs look similar. As shown in fig. 1(a), the number 1234 represents the serial number of the lane reversed plug and the rectangular block represents the backshell of the lane reversed plug that protects the optical fibers within the backshell.

Figure 1(a)

Figure 1(b)

Fig. 2(a) and Fig. 2(b) illustrate the side view and top view of the interior structure of the straight wrap plug respectively. As shown in Fig. 2(a), the colored element projecting out from the body represents the optical fibers and the body represents the straight wrap plug connector.

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Figure 2(a)

As illustrated in Fig. 2(b), the blue colored loop represents the optical fibers and the grey body represents the straight wrap plug connector.

Figure 2(b)

In the interior of a lane-reversed wrap plug, the loop of optical fibers is twisted, to reverse the order of lanes. The interior of the lane reversed wrap plug is not illustrated here. Instead, the routing of fibers in straight and lane-reversed wrap plugs is described below.

As shown in Fig. 3(c), two rows of dots represent positions where the optical fibers are inserted into the 24-position optical fiber connector.

Figure 3

Fig. 4(a) and Fig. 4(b) describe the optical fiber routing within the straight wrap plug and the lane-reversed wrap plug. The "FROM" and "TO" columns indicate the fiber positions with the connector shown in Fig. 3. Fig. 4(a) shows the optical fiber routing for the straight wrap plug - the fibers in positions 1 through 11 are wrapped around, as shown

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in Fig. 2(a) and Fig. 2(b), and into positions 13 through 24, respectively.

Figure 4(a)

 Fig. 4(b) describes the optical fiber routing within the lane-reversed wrap plug - the fibers in positions 1 through 11 are wrapped around, then ar...