NEC ND-71762(E) - page 28

CHAPTER 2 ND-71762 (E)

Page 14

Issue 2

GENERAL INFORMATION FOR CCIS

5. DIGITAL NETWORK AND NETWORK SYNCHRONIZATION

5.1 Outline

To set up a digital network, it is necessary to establish clock level synchronization among the offices composing the

network.

Among various kinds of synchronizing methods, the PBX is using Receiver synchronization as the standard method.

As for the office ranks, there are the following four kinds:

• Source Office

• Sub-Source Office

• Receiver Office

• Local Receiver Office

Refer to Table 2-3 for synchronization method at network-level.

For types of PBX applicable for each office hierarchy, refer to Table 2-4.

×: Applicable —: Not Applicable

The clock precision is as follows.

M-OSC EXT. OSC High precision - PLO/OSC Subordinate - PLO/TSW

Note 1: M-OSC (Master Oscillator) and EXT. OSC (External Oscillator <for back up>) is not to be furnished by

NEC.

Note 2: High Precision Oscillator - PLO (PH-CK17) / OSC (PA-CK14)

Subordinate Oscillator - PLO (PH-CK16) / TSW (PH-SW10)

For the 1-IMG system, the OSC/TSW card is used in place of PLO.

Table 2-3 Office Ranks and Kind of Oscillator

OSC M-OSC

(Note 2)

EXT. OSC

(Note 1)

PLO/OSC

(High Precision Oscillator)

PLO/TSW

(Subordinate Oscillator) REMARKS

Source Office ×—— —

Sub-Source Office —×× —

Receiver office —— ××

Local Receiver Office —— — ×

OFFICE RANK

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Contents

Main Page BEFORE THE USE OF THIS MANUAL Page DANGER ? Page WARNING ATTENTION WARNING ATTENTION Page NEAX2400 IPX Internet Protocol eXchange No.7 CCIS System Manual TABLE OF CONTENTS Page TABLE OF CONTENTS (CONTINUED) Page CHAPTER 1 INTRODUCTION CHAPTER 2 GENERAL INFORMATION FOR CCIS Page Page Page 5 Figure 2-3 Hardware Configuration of No. 7 CCIS System <CCIS Digital Line> <CCIS Analog Line> CHAPTER 2 ND-71762 (E) Page 6 Figure 2-4 Example of Network Configuration for CCIS Digital Line Page 7 Figure 2-5 Example of Network Configuration for CCIS Analog Line Page Page Page Page Page Page Page Page Page Page Page Page 19 Figure 2-14 Diagram of Connections between M-OSC and PLO/OSC Page Page 21 Figure 2-15 Diagram of Connections between PLO/TSW and DTI Page Page Page Page 25 Centralized MAT This figure shows an example of centralized functions activation. Page Page 27 Centralized MAT NETWORK CONFIGURATION FUG3 FUG4 FUG2 (Center FUG) Page CHAPTER 3 SWITCH SETTING SHEETS CHAPTER 4 INSTALLATION PROCEDURE Page Page Page Page Page Page 36 Figure 4-5 LT Connector Leads Accommodation for DTI/CCT Accommodated in *1 Accommodated in *2 Accommodated in *3 Page 37 Figure 4-6 PLO Pin Assignments for Receiving Clock (1-IMG System) PIM0 PLO Page 38 Figure 4-7 PLO Pin Assignment for Receiving Clock (4-IMG System) REAR VIEW 34PH EXCLK CA-A PLOEXCLK1 Page 39 Cable Connection Diagram Page 40 Note: This diagram shows connections for a system having dual PLOs. Page 41 Figure 4-10 Cable Connection Diagram for Receiving Clock from a Digital Interface (TSW) Note 1: Note 2: Page 42 Figure 4-11 Cable Connection Diagram for Receiving Clock from a Digital Interface (PLO) IMG/ISWM Note 2 Note 1: Cable Connection Diagram Note 1 MDF IMG 3.4 Front Cable Connection between DTI and CCH Note 1 Note 2 Page Page Page 46 Figure 4-15 Connection between PBX and MODEM (a) Cable Connection when Accommodated in *1 (Refer to Figure 4-16) (b) Cable Connection when Accommodated in *2 (Refer to Figure 4-16) Page 47 Figure 4-15 Connection between PBX and MODEM (Continued) (c) Cable Connection when Accommodated in *3. (Refer to Figure 4-16) CHAPTER 4 ND-71762 (E) Page 48 Figure 4-16 LT Connector Leads Accommodation for 2CCH Accommodated in *3 Accommodated in *1 Accommodated in *2 CHAPTER 5 INSTALLATION TEST PROCEDURE Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page CHAPTER 6 BASIC DATA ASSIGNMENT ND-71762 (E) CHAPTER 6 Page 67 2. DATA ASSIGNMENT 2.1 Port Allocation and Related Command 2) f (R Note In this figure, five letters such as AAAAA, represent mounting location of CCT card or CCH card. Page CHAPTER 6 ND-71762 (E) Page 70 07/31/02 Page Page Page Page ND-71762 (E) CHAPTER 6 Page 75 Figure 6-2 CIC Number Assignment Note: Press the SPACE bar to skip LEN and press the RETURN key. Figure 6-3 Example of a CCIS Network (Tandem) The CIC number must be identical between two nodes as shown below. A sample office data assignment sheet for Node A is as follows. Page Page Page Page Page CHAPTER 7 CCIS SERVICE FEATURES Page Page CHAPTER 8 MAINTENANCE PROCEDURE Page Page ND-71762 (E) CHAPTER 8 Page 87 MAINTENANCE PROCEDURE Figure 8-1 Circuit Card Mounting Location (1/2) (a) MG and Unit configuration 1-IMG/4-IMG system Note: LP (Local Partition Number), MG (Module Group Number) U (Unit Number) (b) Group Configuration PIM Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 3.3 Fault Repair Procedure for Digital CCIS Line Page Page Page Page Page Page Page NEAX2400 IPX Internet Protocol eXchange No.7 CCIS System Manual ND-71762(E) NEAX2400 IPX Internet Protocol eXchange No.7 CCIS System Manual ND-71762(E)