Multi-Tech Systems CF220 ユーザーズマニュアル

ページ / 84
Chapter 2:  Sample System  
Multi-Tech Systems, Inc. 
CF220 CallFinder User Guide 
12 
Step 2 Practical: Add DID lines and connect to CallFinder. 
PSTN
Local Telco
Central Office
3111-3110
DID Lines
Power
48Vdc
Channel 2
Channel 1
Power
5Vdc
Ethernet
FXS/FXO   DID
FXS/FXO   DID
10/100
3101-3110
Dir. Numbers:
from the telco.
Two DID lines (10 directory
numbers each) are ordered
PBX
No DID
support.
[
]