System Outline Of Isdn Terminal; Figure 1-4 System Outline Of Isdn Terminal (For Isdn-Pri) - NEC Neax 2000 IVS2 Manual

CHAPTER 1 GENERAL INFORMATION
System Outline

System Outline of ISDN Terminal

The system is configured with an ISDN Line Circuit (ILC) for the line interface of an ISDN
Terminal and an ISDN Channel Handler (ICH) for Layer 2 protocol processing (LAP-D).
Figure 1-4 and Figure 1-5

Figure 1-4 System Outline of ISDN Terminal (for ISDN-PRI)

• Point to Point
Connection
ISDN
Terminal
(TE)
• Point to Multi-point
Connection
TA
Data ISDN Terminal
Terminal (TE)
SLT
NOTE 1: The following connections are only available:
• ISDN Terminal to ISDN Terminal Connection
• ISDN Terminal to ISDN Trunk Connection
• ISDN Trunk to ISDN Terminal Connection
• ISDN Terminal to Single Line Telephone Connection
NOTE 2: NT1 equipment must be installed on the premises.
Page 8
show the system outline of the ISDN Terminal.
PBX
2B × 2
ILC
2D
2B × 2
ILC
2D
LC
TDSW
DCH
MP
FP
(PLO)
1.5 M/2 M PCM
23B/30B
DIGITAL LINE (23B/30B + D)
DTI
/PRT
D
CLOCK
SIGNAL
8D
ICH
DCH : D Channel Handler
DTI
ICH : ISDN Channel Handler
ILC
LC
NT1 : Network Termination One
PLO : Phase Locked Oscillator
PRT : Primary Rate Interface Trunk
TA
NT1 ISDN
: Digital Trunk Interface
: ISDN Line Circuit
: Line Circuit
: Terminal Adapter
2
NEAX2000 IVS ISDN System Manual
ND-70919 (E), Issue 1.0