JPH022749A - Optical loop line network - Google Patents

Abstract

PURPOSE:To prevent the failure of the whole of the optical loop line from being generated even when the power source of one node fails by arranging a battery to supply the power source when an ordinary power source fails at the loop circuit control part of each node. CONSTITUTION:A loop control part 5 fetches data addressed to its own part by receiving the data from an optical loop line 2, and transmits the data other than that to an adjacent node. The loop control part 5 can be operated normally by the battery 8 in the case where a common power source 7 is used when the common power source 7 fails. Therefore, no interruption in the optical loop line 2 is generated.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an optical loop network.

[Conventional technology]

Conventionally, in this type of line network, each node is provided with two separate power supply systems.

[Problem to be solved by the invention]

Therefore, each node requires two power supply systems, which inevitably increases the amount of hardware.

[Means to solve the problem]

The present invention provides an optical loop line network having a distributed processing configuration, in which the power supply system of each node connected to the optical loop line is separated into a loop line control unit and a section other than the loop line control unit, and the loop line control unit is This configuration allows power to be supplied by a battery in addition to the normal power source.

Example] Next, the present invention will be explained with reference to the drawings.

FIG. 1 shows the overall configuration of an optical loop network in an embodiment of the present invention, 1-1, 1. -2...1-n indicates a node, and 2 indicates an optical loop line.

2 and 3 are diagrams for explaining cases in which power is supplied from two systems and a case in which power is supplied from a battery in the same embodiment, respectively, in which 5 is a loop control section, 6 is a node processing section, and 3 Reference numeral 4 indicates a power supply for the node processing section 6, 4 indicates a power supply for the loop control section 5, 7 indicates a common power supply supplied to the loop control section 5 and the node processing section 6, and 8 indicates a battery power supply. The loop control unit 5 receives data from the optical loop line 2 and takes in only the data addressed to itself, and sends the rest to the adjacent node. Therefore, if the power supply 4 of the loop control unit 5 is cut off, the data on the optical loop line 2 will be disconnected at the failed node. Third
As shown in the figure, when the common power supply 7 is used, the common power supply 7
When the power supply goes down, the battery 8 allows the roux 1 control unit 5 to operate normally. Therefore, the optical loop line 2 is not disconnected midway.

〔Effect of the invention〕

As explained above, according to the present invention, by providing the loop line control unit of each node with a battery for supplying power when the normal power supply goes down, the optical loop line can be maintained even if the power supply of one node goes down. You can prevent the whole thing from going down.

FIG.

1-1.1-72...1-n: Node, 2: Optical roof line, 3: Power supply for node processing unit, 4: Power supply for loop line control unit, 5-1 line control unit, 6: Node processing section,
7: Common power supply, 8: Battery.

Claims (1)

[Claims] In an optical loop line network with a distributed processing configuration, the power supply system of each node connected to the optical loop line is separated into a loop line control unit and a part other than this loop line control unit, and the loop line control unit is connected to a normal power supply. In addition, the optical loop network is characterized in that it can be powered by a battery.