System Outline - NEC NEAX 2000 IVS 2 System Manual

CHAPTER 1 GENERAL INFORMATION

System Outline

SYSTEM OUTLINE
The PBX can be interfaced with a Public Network or Tie Line Network by No. 7 CCIS Signaling.
For adding No. 7 CCIS to the system, it is necessary to install the 24/30 channel Digital Trunk
Interface (DTI) for a digital network or LDT (Loop Dial Trunk)/ODT (2 wire E&M or 4 wire E&M
Trunk) for an analog network via a MODEM, and a Phase Locked Oscillator (PLO) for network
synchronization. Also, it is necessary to install a Common Channel Handler (CCH).
The CCH receives/transmits common signaling data from/to the distant office. In each local
office, the PBX can provide Centralized Billing function in addition to a variety of inter-office
service features.
NOTE: Centralized Day/Night Mode Change, Centralized MAT and Number Portability feature
require CCIS No. 7 networking with the IMX.
For addition of the Centralized Billing function, an Application Processor (AP) or Built-in SMDR
of MP card (for Local Office only) is required.
for the PBX.
Page 4
Figure 1-1
Figure 1-1 No. 7 CCIS System Outline
PBX
24/30 CH
DTI
CCH
AP
MP
(PLO)
shows the system outline of No. 7 CCIS
24/30 CHANNEL PCM
DIGITAL LINE
DTI
CCH
CLOCK SIGNAL
AP : Application Processor for Centralized Billing
CCH: Common Channel Handler
DTI : 24/30 Channel Digital Trunk Interface
PLO : Phase Locked Oscillator
DIGITAL
PBX
MP
(PLO)
2
NEAX2000 IVS CCIS System Manual
ND-70918 (E), Issue 1.0