MINISTRY OF EDUCATION AND SCIENCE OF UKRAINE

ODESSA NATIONAL A. S. POPOV ACADEMY OF

TELECOMMUNICATIONS

Telecommunication Systems Department course project

On discipline «TELECOMMUNICATION TRANSMISSION SYSTEMS»

Module 4.1. Telecommunication Transmission Systems

special subject:

050903 – «Telecommunications»

Made by 4^rd year student from ICC-TE 4.1.01

Kushnir A.V.

Lecturer

Reshetnikova O.S.

National scale_______________

Points: _________Mark: ECTS _____

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(signature) (surname, initials)

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(signature) ( surname, initials)

Odessa 2016

CONTENT

Task

Input data

Introduction 5

1 Branch line on the basis of PDH DTS 7

1.1 Characteristic of the PDH DTS transmission line 7

2 Communication organization in the SDH ring 12

2.1 Levels of the synchronous transport modules in SDH ring 12

2.2 Types of SDH modules in the ring 13

2.3 Organization scheme of the SDH ring 20

2.4 Synchronization of communication network 21

3 Branch line on basis of RRTS

3.1 Classification on line-of-sight RRTS

Conclusions

Bibliography

TASK

Develop a segment of a multiservice telecommunication network with the radially-ring architecture with using of PDH, SDH and DWDM technologies. Connect nodes from 1 to 8 by means of ring topology. One ring node is a switched network node (SNN) and all others are dedicated network nodes (DNN). Compare two variants of ring construction: 1) by means of SDH DTS only; 2) sharing of SDH and DWDM DTS. Organize the branch line from the SNN to nodes 9 and 10 by means of PDH hardware. Organize the branch line from the SNN to nodes 11 and 12 by means of RRTS hardware. Develop the block diagrams of transmission lines of corresponding network sections.

Input data

Architecture of the network is a ring type with branch lines (fig. 1). Branch line from the network switched node №8 to dedicated network node № 9 and network station (NS) №10 is organized, as well as to dedicated network node № 9.

Figure 1 – Architecture of the network

Quantity of primary digital streams (PDS) between nodes of branch line is equal to (table 1):

Table 1 – Input data

№	Type of PDH DTS	Cable type	Quantity of primary digital streams between nodes of branch line
			SNN 8 - DNN 9 / DNN 9- DNN 10	SNN 8 - DNN 10	DNN 10 – Ring DNN 8
	PCM-120	МКС 7х4	1	27	28

2. The type of SDH ring is bi-directional.

3. Type of SDH ring reservation 1) SNCP/BP/1+1/2ОF.

4. Quantity of primary digital streams between nodes of SDH ring (table 2):

Table 2 – Input data

Number of PDB between DNN and SNN								Number of PDB between DNN
1	2	3	4	5	6	7	8
22	24	14	14	19	18	21	-	21

5. Distance between network nodes of ring (table 3):

Table 3 – Input data

Distance between NN									Number of SNN
1-2	2-3	3-4	4-5	5-6	6-7	7-8	8-1
115	111	81	65	45	39	111	60	8

6. Break in section with the maximal load (5…6)

7. Parameters of optical transmitter:

 The transmission level p_tr = 9 dBp;

 The emission wavelength of laser ₀ = 1310 nm;

 The width of laser emission line Δλ = 0,03 nm.

8. Parameters of optical cable in the SDH ring:

 The attenuation coefficient  = 0,4 dB/km;

 The chromatic dispersion ₀₁ = 3,5 ps/(nm⋅km);

 The factory cable length lf = 12,5 km.

9. Parameters of optical receiver:

 Optical sensitivity p _rec = –30 dBp.