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Method and device for designing back plate of synchronous digital hierarchy (SDH) optical fiber transmission system

A technology of synchronous digital series and optical fiber transmission, which is applied in the direction of optical fiber transmission, time division multiplexing system, electrical components, etc., to simplify the design and improve the stability

Inactive Publication Date: 2014-12-10
北京润光泰力科技发展有限公司
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  • Description
  • Claims
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Problems solved by technology

Therefore, the exclusive bus method still has certain limitations

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  • Method and device for designing back plate of synchronous digital hierarchy (SDH) optical fiber transmission system
  • Method and device for designing back plate of synchronous digital hierarchy (SDH) optical fiber transmission system
  • Method and device for designing back plate of synchronous digital hierarchy (SDH) optical fiber transmission system

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Embodiment Construction

[0042] The invention provides an SDH backplane design device, which simplifies the design of the backplane and improves the stability of the SDH high-speed backplane.

[0043] see figure 2 , which is a structural diagram of an SDH backplane design device according to an embodiment of the present invention.

[0044] The SDH backplane design device described in the embodiment of the present invention includes: a central cross-connect unit, a backplane, and several sub-disks.

[0045] The central cross-connect unit includes the same number of first processing units as the number of sub-disks.

[0046] Each of the first processing units includes a first encoding subunit, a first clock and data recovery subunit (CDR: CLOCK DATA RECOVERY), and a first decoding subunit.

[0047] Each of the sub-disks includes a second processing unit.

[0048] Each of the second processing units includes a second encoding subunit, a second clock and data recovery subunit (CDR: CLOCK DATA RECOVERY...

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Abstract

The invention discloses a method and a device for designing a back plate of a synchronous digital hierarchy (SDH) optical fiber transmission system. The device comprises a central cross connection unit, the back plate and a plurality of sub-disks, wherein the central cross connection unit comprises first processing units; the quantity of the first processing units is equal to that of the sub-disks; each first processing unit comprises a first coding sub-unit, a first clock and data recovery sub-unit and a first decoding sub-unit; each sub-disk comprises a second processing unit; and each second processing unit comprises a second coding sub-unit, a second clock and data recovery sub-unit and a second decoding sub-unit. By adoption of the method and the device for designing the back plate of the SDH optical fiber transmission system, a clock bus is eliminated, design of the back plate is simplified, and the stability of a high-speed back plate of the SDH optical fiber transmission system is improved.

Description

technical field [0001] The invention relates to the technical field, in particular to a backplane design method and device for a synchronous digital series optical fiber transmission system without a clock bus. Background technique [0002] Synchronous digital serial optical fiber transmission system (SDH) is widely used in the communication network. Up to now, the backplane of SDH has adopted the method of adding data and clock. Referring to Figure 1, there are generally two connection modes from the central cross-connect unit (DXC) to each subunit. As shown in Figure 1-a, the first connection mode: shared bus mode, several sub-disks are connected to the bus and share the resources of the bus. As shown in Figure 1-b, the second connection mode: independent bus mode, each sub-disk occupies an independent bus resource and is not shared with other sub-disks. [0003] In the first connection mode, due to the sharing mechanism, the resources obtained by the sub-disks are seve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/16H04J3/06H04B10/25
Inventor 王庆钢
Owner 北京润光泰力科技发展有限公司
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