Chapter 2: Sample System

Step 2 Practical: Add DID lines and connect to CallFinder.

PSTN

Local Telco

Central Office

Two DID lines (10 directory

 

 

 

 

numbers each) are ordered

 

 

 

 

from the telco.

 

DID Lines

 

 

 

 

Dir. Numbers:

3111-3110

3101-3110

Power

Channel 2

Channel 1

Ethernet

Power

48Vdc

 

 

 

5Vdc

 

FXS/FXO DID

FXS/FXO DID

10/100

 

PBX

[Nosupport.DID ]

Multi-Tech Systems, Inc.

CF220 CallFinder User Guide

12

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Multi-Tech Systems CF220 manual Pbx, Practical Add did lines and connect to CallFinder