NEC NEAX2000 IVS2 30DTI, DCH, 24DTI, DCH

NEAX2000 IVS2 Q-SIG System Manual

Page 8 ND-70923 (E), Issue 1.0

CHAPTER 1 GENERAL INFORMATION

System Configuration

30DTI

The Digital Trunk Interface (DTI) interfaces the PBX directly to 30-channel PCM transmission

line. The 30-DTI has the following functions.

• Unipolar/Bipolar Conversion (HDB3 Format)

• Sig naling Insertion/Extraction

• Alarm De tection/Insertion

• Di gital PAD on Voice Signal Transmission

• Cyclic Redundancy Che cking (based on ITU-T Rec. G704)

• Channel Associated Signaling (based on ITU-T Rec. Q421 Digital R2 Signaling Code)

For connection of a 30-DTI and transmission line, e ither coaxial cable or twisted pair cable can

be used.

DCH

The D Channel Handler (DCH) provides the D Channel signaling interface through the DTI to a

Q-SIG network, and it is responsible for signaling between the PBX and the network under

control of the system MP.

A DCH can control a maximum of 30 B Channels.

24DTI

The Digital Trunk Interface (DTI) interfaces the PBX directly to 24-channel PCM transmission

line. The 24-DTI has the following functions.

• Unip olar/Bipolar Conversion (AMI Format)

• Alarm De tection/Insertion

• Di gital PAD on Voice Signal Transmission

• Cyclic Redundancy Che cking (based on ITU-T Rec. G704)

For connection of a 24-DTI and transmission line, a twist ed pair cable can be used.

DCH

The D Channel Handler (DCH) provides the D Channel signaling interface through the DTI to a

Q-SIG network, and it is responsible for signaling between the PBX and the network under

control of the system MP.

A DCH can control a maximum of 23 B Channels.

Contents

Main Page NEAX2000 IVS Q-SIG System Manual ND-70923 (E) NEAX2000 IVS Q-SIG System Manual TABLE OF CONTENTS LIST OF FIGURES LIST OF TABLES INTRODUCTION PURPOSE OUTLINE OF THIS MANUAL REFERENCE MANUALS Page Page 4 System Outline SYSTEM OUTLINE Summary Figure 1-1 System Outline of Q-SIG NOTE: Conforming to Q921-a (PBX-PBX Interface) Physical Interface 30DTI Figure 1-2 Physical Interface Figure 1-3 Physical Interface Physical Interface 24DTI Page 6 Interworking with Other Network Figure 1-4 Interworking with Other Network NOTE: Interworking between Q-SIG and CCIS is not available. System Configuration SYSTEM CONFIGURATION Figure 1-5 shows the system configuration of the Q-SIG system. CLOCK Figure 1-5 System Configuration of Q-SIG 30DTI DCH 24DTI DCH PLO Figure 1-6 Clock Supply Route Configuration CARD NAME AND FUNCTION Table 1-1 Q-SIG Card Name and Function CARD NAME FUNCTIONAL NAME FUNCTION SYSTEM CAPACITY Table 1-2 System Capacity for Q-SIG DESCRIPTION 24DTI 30DTI Page 12 System conditions SYSTEM CONDITIONS Time Slot Assignment Condition Figure 1-7 Accommodation of DTI/DCH/ICH/BRT/PRT into TDSW Time Slot Allocation for DTI/DCH Card Figure 1-8 Time Slot Allocation for DTI SERVICE FEATURES Connected Destination Indication Figure 1-9 Connected Destination Indication Page Transit Counter Relaying Figure 1-10 Transit Counter Page PRECAUTIONS STATIC ELECTRICITY GUARD Figure 2-1 Static Electricity Guard (1 of 2) Figure 2-1 Static Electricity Guard (2 of 2) WHEN MAKING A SWITCH SETTING ON A CIRCUIT CARD ATTENTION Caution REQUIRED EQUIPMENT Table 2-1 Required Equipment for Q-SIG EQUIPMENT DESCRIPTION QUANTITY REMARKS INSTALLATION PROCEDURE Figure 2-2 Installation Procedure for Q-SIG Mounting DTI and DCH Card Mounting CONN Card Page DTI Cable Connection via MDF Figure 2-3 Cable Connection via MDF Figure 2-4 Location of the AP Slots and the LTC Connectors for DTI Page 28 Figure 2-5 Example of MDF Cross Connection for DTI DTI Cable Connection via CONN Card Figure 2-6 Cable Connection via the CONN Card Page 30 Figure 2-7 Example of Coaxial Cable Connection Page HOW TO READ THIS CHAPTER DTI ASSIGNMENT Page Page Page DCH ASSIGNMENT TANDEM CONNECTION ASSIGNMENT To provide Tandem Connection (Tie Line to Q-SIG, Q-SIG to Tie Line), do the following programming. CONNECTED DESTINATION INDICATION ASSIGNMENT Page HOW TO READ THIS CHAPTER MOUNTING LOCATION OF CIRCUIT CARD Figure 4-1 Mounting Location of Circuit Card LIST OF REQUIRED CIRCUIT CARD Table 4-1 List of Required Circuit Card PN-CP14 (MP) Caution Page Page Page Page 50 PN-30DTC-A (DTI) Page Page Page Page Page Page 56 PN-24DTA-C (DTI) Locations of Lamps, Switches, and Connectors Page Page Page Page Page PN-SC01 (DCH) Page Page PZ-M542 (CONN) Lamp Indications This card has no lamps. Page PZ-M557 (CONN) Lamp Indications This card has no lamps.