It321 Week 1

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Glenn Schuller IT321 Network Technology and Service Integration

2. Define the Fallowing:

CPS: is the “brain”. It has access to all functional groups from the NCP to the line and trunk modules.

NCP: Is connected to the CPS and line and trunk modules. It receives questions from the line and trunk units regarding call routing, feature request, and so forth.

ICS: Sits between the switching fabric and the line or trunk modules and is used to connect the two

Trunk module: is a term used to designate the trunk side of the switch

Line module: is a term that is used to designate the line interface side of the switch

3. Explain the difference between a tandem switch and a class 5 switch. A tandem switch is a class 4 switch, its main purpose is to switch trunks, between the toll switch and the local telephone net work , and between the CLEC regional center class 5 switches, between the ILEC’s end-office class 5 switches, and between operator services toll switches called OSPS’s.

A class 5 switch (local) has line modules, trunk modules, interface communications modules, a switch fabric, network switch processors and central switch processors. It is also referred to as an end-office switch because, as it sounds, it sits in the central office.

4. Explain the difference between a tandem switch and a long distance switch. A tandem switch is a class 4 switch, its main purpose is to switch trunks, between the toll switch and the local telephone net work , and between the CLEC regional center class 5 switches, between the ILEC’s end-office class 5 switches, and between operator services toll switches called OSPS’s.

A long distance switch routes traffic through the long distance network. The types of interfaces that terminate on a long distance switch are intermachine trunks (ITMT’s); they can also connect to databases that are used to validate calling card calls.

5. Explain the difference between a long distance switch and an international switch. A...
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