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D-16
D-16
General Description
This service feature provides the capability to connect trunks from the NEAX2400 IPX directly to "T1" carrier links
via either private or public network.
Digital PBX
Traditional Analog
PBX
Operating Procedure
No manual operation is required.
Service Conditions
1.
The DTI provides signalling interface, bipolar/unipolar conversion, frame synchronization, insertion/
extraction and alarm detection.
2.
The Digital Interface Module can be provided with circuit cards to interface with "T1" carrier and/or
CCITT standard networks.
3.
The Digital Interface Module (DTI) is mounted in a Port Interface Module (PIM).
4.
The following two methods may be used for network synchronization:
a.) Source-Receiver System (Source)
b.) Source-Receiver System (Receiver)
5.
Each office hierarchy is defined as follows:
a.) Source Office: One center will operate as the Source Office. This location has two highly
stabilized source oscillators, and distributes the Source Clock to all the systems through the
digital interface lines.
Page 292
Direct Digital Interface
Direct Digital Interface
Private Network: Connecting Digital Networks
Office
Line
Rep
Rep
Private Network: Connecting Digital Networks
Office
Line
Rep
Rep
D3 Bank
DS-1 Signal Level
PCM Transmission Line
(24 Channel)
Line
Rep
Line
Office
Rep
Rep
Office
Rep
Digital PBX
Traditional Analog
D3 Bank
PBX
NEAX2400 IPX Feature Programming Manual
NDA-24297, Issue 1
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