System Outline; System Outline Of Isdn-Pri; Figure 1-1 System Outline Of Isdn-Pri - NEC Neax 2000 IVS2 Manual

CHAPTER 1 GENERAL INFORMATION

System Outline

SYSTEM OUTLINE
This system can be interfaced with an ISDN with the Primary Rate Interface or the Basic Rate
Interface at the reference point S/T and ISDN Terminal.

System Outline of ISDN-PRI

The system is configured with a 24/30-channel Digital Trunk Interface (DTI) for digital network
interface, D Channel Handler (DCH) for receiving/transmitting D channel signaling data from/to
the ISDN exchange. Since the Main Processor (MP) contains Phase Locked Oscillator (PLO),
the system can be synchronized to the ISDN as a clock receiver office.
Figure 1-1 shows the system outline of ISDN-PRI.
SLT
LC
term
D
DLC
DCH
FP
NOTE 1: NT1 equipment must be installed in the premise.
NOTE 2: The PRT provides a built-in DCH.
Page 4

Figure 1-1 System Outline of ISDN-PRI

PBX
23B/30B
DTI
/PRT
D
TDSW
MP
(PLO)
1.5 M/2 M PCM
DIGITAL LINE (23B/30B + D)
CLOCK
SIGNAL
DCH: D Channel Handler
DTI : Digital Trunk Interface
NT1 : Network Termination One
PLO : Phase Locked Oscillator
PRT : Primary Rate Interface Trunk
NT1
ISDN
2
NEAX2000 IVS ISDN System Manual
ND-70919 (E), Issue 1.0