Network and switching system option 3

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Uploaded: 29.10.2011
Content: 11029101437360.doc (1181 kB)


Problem number 1
Bring generalized scheme CSK (digital switching system). List and describe the units that are part of its equipment. Using the flowchart of establishing a telephone connection on the exchange (Figure 1), the algorithm result of service intra connect two subscribers in said digital switching system, according to an embodiment.

Baseline Option 3: telecommunications system: C & C08.

Problem number 2
The switching network EATS built using the time switch 32x32 determine the number and contents of the memory cells and Zooey SCT when connecting to preset channels.

Baseline Option 3:
Digital line at the entrance: NVTSL = 9;
Incoming channel: NVI = 25;
Digital Line Output: NITSL = 5;
Outgoing channel: NVI = 30;
The transmitted code combination: 62.

Problem number 3
Lead technical characteristics, scope and architecture of a given CSK. Describe the management system EATS.

Baseline Option 3: telecommunications system Si-2000 v.5.

Problem number 4
Explain the basic principles of multi-service networks (MS). List and describe (for option) technology used
components for implementing MS: transport network (TN) and the access network (AN). Bring classification equipment MS.
In this scheme multiservice network (Figure 2) show the route of the service, according to initial data (Table 4). Describe the function of the equipment involved in the provision of services.

Baseline Option 3:
Some MS: TN;
Type of service: PD;
User A: 74-68-32;
User B: 52-56-87.


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