Alcatel-Lucent OmniPCX Enterprise Communication Server NDDI2-2 (LS/GS)

Similar documents
Alcatel-Lucent OmniPCX Enterprise Communication Server TA-MMK (MMK V2)

Alcatel-Lucent OmniPCX Enterprise Communication Server RMAB

Telecommunications Switching Systems (TC-485) PRACTICAL WORKBOOK FOR ACADEMIC SESSION 2011 TELECOMMUNICATIONS SWITCHING SYSTEMS (TC-485) FOR BE (TC)

PagePac PAGEPAL V

CelluLine CGW-TS GSM Cellular Gateway. Installation and Programming Manual

How To Use The Meridian 1 Option 61C On A Microsoft V2.2.1 (Ios) With A Microtower (Microtower) And A Microsonic (Microsonic) Phone (Micros) With An

Telephony Systems Trainer CODITEL

NOKIA 32 SUPPORT GUIDE FOR INSTALLING NOKIA 32

Alcatel-Lucent OmniTouch Contact Center Standard Edition. Agent on VoIP Plug-in R10.0

Implementing a Digital Answering Machine with a High-Speed 8-Bit Microcontroller

DRTS 33. The new generation of advanced test equipments for Relays, Energy meters, Transducers and Power quality meters

Chapter 8: The Telephone System

PRImaGate Switch RACK 3U

Current Probes. User Manual

8086 Telephony Training Systems

User Manual. Call Center - Agent Assistant Application

Miniature Surface-Mount DAA for Audio or Data Transfer XE0402LCC BLOCK DIAGRAM

2-Wire/4-Wire Telephone Line Interface. XE0204 Block Diagram

In addition to our VoiceDirector hardware products, the following SIP broadband devices are also compatible with VoiceDirector:

PS 29M DUAL CHANNEL BELTPACK IN METAL CASE

VCL-PRI ISDN VALIANT COMMUNICATIONS LIMITED. Primary Rate (Euro-ISDN) Multiplexer. Product Brochure & Data Sheet

Cisco PAP2T Internet Phone Adapter with 2 VoIP Ports Cisco Small Business Voice Gateways and ATAs

Line Cards Description

ABB RTU560A Series CMU & Modules

Technical Manual. For use with Caller ID signaling types: Belcore 202, British Telecom, & ETSI

TUTORIAL FOR CHAPTER 8

E1-GSM RION ORION TELECOM NETWORKS INC. E1 Channel Bank with 30 X GSM Wireless Interface(s) TELECOM NETWORKS

Traditional Telephony

Digital T1/E1 PCI (HMP) Board

Customer Interface Publication: KCH CIP002. Public Switched Telephone Network (PSTN)

Design and Construction of Microcontroller- Based Telephone Exchange System

MH Hybrid Subscriber Line Interface Circuit (SLIC) Preliminary Information. Features. Description. Applications. Ordering Information

GSM Voice Auto Dialer & SMS Sender JC-999

Modular I/O System Analog and Digital Interface Modules

VALIANT COMMUNICATIONS LIMITED

TX GSM SMS Auto-dial Alarm System. Installation and User Manual

Three Network Technologies

Final draft ETSI ES V1.2.1 ( )

TECHNICAL SPECIFICATION FOR PRIVATE AUTOMATIC BRANCH EXCHANGE (PABX) SYSTEM FOR CONNECTION TO PUBLIC SWITCHED TELEPHONE NETWORK (PSTN)

Inductive Sensors Single or Dual Loop Detectors Type LD with teach-in

Firmware version: 1.10 Issue: 7 AUTODIALER GD30.2. Instruction Manual

Unattended Answering Device Instruction Manual

Section wire E&M/TO Configuration. 4-Wire E&M/TO Voice Card. About This Section. Functional Description. Physical Description

Alcatel-Lucent OmniTouch Contact Center Standard Edition. Agent on Analog Set. Phone Guide R10.0

Product Information S N O. Portable VIP protection CCTV & Alarm System 2

C24-CAMANL Video Server/Encoder

cpci cfxo3120 FXO/FXS VoIP Gateway

ITS 1 Edition 8/May 2007

VOICE RECORDING SYSTEM ISDN PRI / BRI

Fundamentals of Telecommunications

Inbound Routing with NetSatisFAXTion

Automatic Telephone Dialer TD-101(W)

A RF18 Remote control receiver MODULE

Model PBX 308 Plus System Administration Guide

LT-82 Stationary IR Transmitter

Operating Instructions. Telephone System tiptel 1/8 fax clip tiptel 2/8 clip. (Release 2) tiptel

FWT-8848 GSM (GATEWAY) USER S MANUAL

Mitel MiVoice Business 3300 Controllers. Purpose Built Hardware Designed to Address a Variety of Business Needs

Smarthome SELECT Bluetooth Wireless Stereo Audio Receiver and Amplifier INTRODUCTION

Switch board datasheet EB

Business/Home GSM Alarm System. Installation and User Manual

Low Speed Modems for Dial and Leased Circuits 2400E-2 (Stand Alone) 2400R-2 (Rack Mount) 2400E-4 (Stand Alone) 2400R-4 (Rack Mount)

Features, Benefits, and Operation

IPX AUTOMATIC IP NETWORK LOSS BACKUP A/B SWITCH INSTRUCTION BOOK IB

GSM Interfacing Board

System Administration Guide. Model KS 832. Expandable up to 1664

The manufacturer reserves the right to modify the product in order to improve its qualities.

Configuring the 930A for Common PBX Metallic Signaling Interfaces

Trunk Signaling. Figure 1 Subscriber Loop Signaling and Trunk Signaling

Allen-Bradley/Rockwell

DECT Module UM-9802 Datasheet

GLOLAB Universal Telephone Hold

PHONE MANAGER INDEX. page

Voltage Regulator SPAU 341 C. Product Guide

CM705B - Universal Expander Module CM707B - Plug On Zone Expander Security Systems

Design and Construction of Microcontroller- Based Telephone Exchange System

Technical data. General specifications. Indicators/operating means. Electrical specifications Operating voltage U B Power consumption P 0 Interface

Link Gate SIP. (Firmware version 1.20)

PBXport. Rackmount PBX Digital Hybrid. User Guide. JK Audio

Mitel MiVoice Business 3300 Controllers

Providing feature-rich IP communication and advanced user applications to corporate local and wide area networks

APPLICATION NOTE # Using Sage SMOS for VoIP Testing, IP Phone to IP Phone TABLE OF CONTENTS

VMR6512 Hi-Fi Audio FM Transmitter Module

RC8061 Pan and Tilt Camera Installation Guide

Universal Host. Desktop Digital Hybrid. User Guide. JK Audio

GTS-4E Hardware User Manual. Version: V1.1.0 Date:

MITEL 3300 CONTROLLERS

Application Note: Extending a TSP s Analog Capabilities Using an Access Bank I

Using the Teridian 73M2901CE in 4-Wire and Leased Line Applications

AA9604 Auto Attendant

Dupline Field- and Installationbus Dupline Profibus-DP Gateway Type G

IP DSLAM IDL Quick Installation Guide

Model PBX 308 Plus System Administration Guide

Analog Access to the Telephone Network

Whale 3. User Manual and Installation Guide. DC Servo drive. Contents. 1. Safety, policy and warranty Safety notes Policy Warranty.

How To Use A 1232 On A 1236 On A Computer Or A Cell Phone

TELECOMMUNICATIONS AUTHORITY HONG KONG

Tele Eye DT Series. Installation Guide. Dialup CCTV Transmitter DT-103G DT-103P DT-103D

TECHNICAL SPECIFICATION FOR CORDLESS TELEPHONE SYSTEMS

Transcription:

AlcatelLucent OmniPCX Enterprise Communication Server NDDI22 (LS/GS)

Legal notice: Alcatel, Lucent, AlcatelLucent and the AlcatelLucent logo are trademarks of AlcatelLucent. All other trademarks are the property of their respective owners. The information presented is subject to change without notice. AlcatelLucent assumes no responsibility for inaccuracies contained herein. Copyright 2012 AlcatelLucent. All rights reserved. The CE mark indicates that this product conforms to the following Council Directives: 2004/108/EC (concerning electromagnetic compatibility) 2006/95/EC (concerning electrical safety) 1999/5/EC (R&TTE)

Chapter 1 Hardware description Presentation... 1.1 Environment... 1.1 Functional blocks... 1.2 QLSLAC... 1.3 Analog interfaces... 1.4 DSP module... 1.4 Common part... 1.5 Power supply... 1.5 Chapter 2 Hardware configuration Reference... 2.1 Overview... 2.1 Assembling NDDI2 2 board... 2.2 Assembling QATI 2 daughter board... 2.4 Jumpers on NDDI2 2 and QATI2 boards... 2.5 NDDI2 2 LED... 2.6 01

Chapter 3 External connections Connection... 3.1 Output pins on NDDI2 2 board... 3.2 Chapter 4 CLIPIA Daugtherboard Operation Overview... 4.1 CLIP function... 4.1 Metering function... 4.1 Chapter 5 CLIPIA Daughterboard Configuration Reference... 5.1 Board assembly... 5.1 Chapter 6 Ground Start (GS) Daughterboard Operation 02 Overview... 6.1 Operation... 6.1

Chapter 7 Metering Detection Daughter Board Overview... 7.1 03

04

1.1 Presentation The Loop Start / Ground Start (LS/GS) board is also called Non Direct Dialing In (NDDI22) board. It is an analog board which allows the Private Automatic Branch exchange (PABX) to be connected to most public networks. Furthermore, this board allows the PABX to be connected to a pager system according to the ESPA standard. The NDDI22 board can connect up to eight 2wire analog lines. Lines 1 to 4 are processed on the mother board and lines 5 to 8 are processed on the QATI2 daughter board. The NDDI22 board can handle the following optional daughter boards : Calling Line Identification Protocol Interface Adaptor (CLIPIA) board: This board allows the line impedance to be modified to identify the caller and to detect the metering pulses. For more information on the CLIPIA board, see NDDI22(LS/GS) CLIPIA Daugtherboard Operation. Tax Metering board: This board is used to detect 12/16 KHz metering pulses. For more information on the Tax Metering board, see NDDI22(LS/GS) Metering Detection Daughter Board. Ground Start board: This board is used to seize the line via the ground and to detect incoming calls via grounding a line wire. Note: The Ground Start board is only available in the US market. Each daughter board is dedicated to 4 network lines, i.e. 2 daughter boards are necessary to handle 8 lines of an NDDI22 board. For more information on the NDDI22 board configuration, see NDDI22(LS/GS) Hardware configuration. For more information on the NDDI22 board connection, see NDDI22(LS/GS) External connections. 1.2 Environment changebegin The following figure shows the front and back panel connections of the NDDI22 board.! " #$! %$! &!'()' * 11

Chapter #$! %$! &!'()' * changeend 1 Figure 1.1: Input/Output diagram NDDI2 2 (LS/GS) board 1.3 Functional blocks The NDDI22 board is made up of the following functional blocks: Quad Low voltage Subscriber Line Audio processing Circuit (QLSLAC), Analog interfaces, Digital Signal Processing (DSP) module, Common part, Power supply. changebegin The following figure shows how the functional blocks of the NDDI22 board are organized. 12! " #$! %$! &!'()' *

changeend #$! %$! &!'()' * Figure 1.2: Functional block diagram NDDI2 2 (LS/GS) board 1.3.1 QLSLAC! " #$! %$! &!'()' * 13

Chapter 1 #$! %$! &!'()' * A/D and D/A voice signal conversion is ensured by 2 QLSLAC circuits. Each Quad Low voltage Subscriber Line Audio processing Circuit (QLSLAC) contains 4 codersdecoders (CODECS) and supports 4 analog interfaces. One Time Division Multiplex (TDM) or TS allocation connects both QLSLAC to circuit C1. The QLSLAC acts as: 1.3.2 an interface between : the Pulse Code Modulation (PCM) bus (TimeSlot Assigner (TSA)) and the processor, the SLIC OET/CET management and 4 Signal Processing Channels (SPC), the programmable software for transmission features (input impedance, reception and transmission gains, echo cancellation, µ or A laws coding, etc.). Analog interfaces Analog interfaces: control the signalling, transmit voice, receive messages to identify the caller (CLIP), if any. Interfaces are made up of the following parts: 1.3.3 protection circuits which consist of: overvoltage protection circuits to avoid damage in case of any short circuit, EMI filtering circuits to reduce the RFI effects on the telephone linecard. impedance for ringing signal: A firmware command allows a low or high impedance to be connected. This command allows, with a specific equipment (country dedicated daughter board), either a ringing impedance or a spark quench circuit to be connected (loop protection circuit during dialing). loop circuits which can be: on line loop, a high dynamic impedance circuit with DC current limitation (compatible with TBR21), dialing loop (very low resistance). loop current detector. polarity detector: Still used for paging, its use depends on the country for NDDI operation. The polarity can be detected only if a DC current loop is present. interface for AC signalling at hangup: The interface allows the AC signalling received during the hangup phase to be transmitted from the line to the QLSLAC (to be detected by the DSP). This signaling can be ringing, dual tone (DTAS), DTMF, V23 or Bell202 type for line call identification messages (CLIP function). DSP module The Digital Signal Processing (DSP) module has the following functions: 14! " #$! %$! &!'()' *

#$! %$! &!'()' * 1.3.4 Tone detection: Eight channels are available for tone detection. The different paces are validated by the firmware coupler, levels and frequencies are validated by the DSP software. External tone detection on the NDDI22 interfaces: There are two types of tone: Dial tone, Busy tone. Ringing detection: Eight ringing detection channels are necessary on the NDDI22 board. The different paces are validated by the firmware coupler, levels and frequencies are validated by the DSP software. The detector must handle frequencies ranging from 14.5 to 68 Hz. TAMIS Terminal equipment Alert Signaling (TAS) detection: Eight TAS detection channels are necessary on the NDDI22 board. The TAS can be : Dual Tone Alert Signalling (DTAS), Ringing Pulse Alert Signalling (RPAS). Frequency Shift Keying (FSK) demodulation: Eight FSK demodulation channels are necessary on the NDDI22 board (eight FSK carrier detections are provided). FSK has the following features: bit duration: 833 µs, 0 logical frequency: 2200 ± 22 Hz (Bellecore) or 2100 ± 16 Hz (ETSI), 1 logical frequency: 1200 ± 12 Hz (Bellecore) or 1300 ± 16 Hz (ETSI), Signal level reception: 12 to 32.5 dbm (Bellecore) or 11 to 35 dbm (ETSI). Dual Tone MultiFrequency (DTMF) detection: In some countries, the messages can be transmitted using the 16 DTMF codes. Common part The common part is the interface between the NDDI22 board and the other ACT boards. The Revision Code Number (RCN) register of the QLSLAC recognizes the NDDI22 board. The MIC 0 link rated at 2.048 MHz transmits voice for 8 NDDI22 lines. For more information on the common part, see Common Part Common part. 1.3.5 Power supply From 48V power supply, the CM8 converter supplies the NDDI22 board with +5V, 5V and +12V. 3.3V regulators supply the QLSLAC and the DSP module.! " #$! %$! &!'()' * 15

Chapter 16 1 #$! %$! &!'()' *! " #$! %$! &!'()' *

2.1 Reference The NDDI22 reference is 3BA 23171 AB. QATI2 is the daughter board of the NDDI22 board. The QATI2 reference is 3BA 23184 AB. 2.2 Overview changebegin The following figure gives an overview of the NDDI22 (LS/GS) board, its daughter boards and its jumpers. $ ()! #$! %$! *+',!$)' * 21

Chapter #$! %$! *+',!$)' * changeend 2 Figure 2.1: NDDI2 2 (LSGS) board with jumpers 2.3 Assembling NDDI2 2 board Before assembling the NDDI22 board, you need to remove the QATI2 daughter board. changeend changebegin changeend changebegin changeend changebegin The following figures show how the NDDI22 board is assembled and what the different jumper positions are on the board. changebegin Note 1: When the DC current loop jumper is removed, the current is limited to 28 ma. 22 $ ()! #$! %$! *+',!$)' *

changeend #$! %$! *+',!$)' * changeend changebegin changeend changebegin Caution: Before positioning the input/output impedance jumpers, you are advised to contact AlcatelLucent technical support because the positioning of these jumpers depends on the country, specially countries with complex impedances. Note 2: The assemblies represented with grey background are the exfactory assemblies. For more information on the position of the jumpers on the boards and equipment number, see Jumpers on NDDI2 2 and QATI2 boards. $ ()! #$! %$! *+',!$)' * 23

Chapter 2 #$! %$! *+',!$)' * The X904 assembly is not equipped with jumpers. 2.4 Assembling QATI 2 daughter board After assembling the NDDI22 board, you can assemble the QATI2 daughter board. changeend changebegin The following figure gives an overview of the QATI2 daughter board and its jumpers. Figure 2.8: QATI2 board with jumpers changebegin The following figures show how the QATI2 daughter board is assembled and what the different jumper positions are on the board. 24 $ ()! #$! %$! *+',!$)' *

changeend #$! %$! *+',!$)' * changeend changebegin Note 1: When the DC current loop jumper is removed, the current is limited to 28 ma. Caution: Before positioning the input/output impedance jumpers, you are advised to contact AlcatelLucent technical support because the positioning of these jumpers depends on the country, specially countries with complex impedances. Note 2: When the DC current loop jumper is removed, the current is limited to 28 ma. For more information on the position of the jumpers on the boards and equipment number, see Jumpers on NDDI2 2 and QATI2 boards. 2.5 Jumpers on NDDI2 2 and QATI2 boards The following table gives the positioning of the jumpers on the NDDI22 (mother board) and QATI2 (daugther board) boards. table 2.1: Jumpers on NDDI2 2 and QATI2 boards $ ()! #$! %$! *+',!$)' * 25

Chapter 2 #$! %$! *+',!$)' * Board name Equipment number (Interface) DC current loop jumpers Input/Output impedance jumpers NDDI22 (mother board) Equipment 1 X1011 X1111 Equipment 2 X1021 X1121 Equipment 3 X1031 X1131 Equipment 4 X1041 X1141 Equipment 5 X1011 X1111 Equipment 6 X1021 X1121 Equipment 7 X1031 X1131 Equipment 8 X1041 X1141 QATI2 (daughter board) Caution: Before positioning the input/output impedance jumpers, you are advised to contact AlcatelLucent technical support because the positioning of these jumpers depends on the country, specially countries with complex impedances. 2.6 NDDI2 2 LED changeend changebegin The following figure shows the front panel of the NDDI22 board with its LED (Light Emitting Diode). Figure 2.11: NDDI2 2 (LS/GS) board front panel LED The following table gives the meaning of the NDDI22 LED. LED CPU (green LED) 26 table 2.2: Meaning of LED Meaning Processor activity indicator LED $ ()! #$! %$! *+',!$)' *

#$! %$! *+',!$)' * LED Meaning BSY (orange LED) Activity indicator LED of at least one trunk The following table gives the meaning of the different status of the CPU LED. table 2.3: Meaning of CPU LED status Meaning Status Always ON Initializing 100 ms (ON) / 1 s (OFF) Loading in progress 10 ms (ON) / 10 ms (OFF) Boot flashing 300 ms (ON) / 300 ms (OFF) CPU waiting 8 x (900 ms (ON) / 600 ms (OFF)) / 1 s (OFF) RAM test error 8 x (300 ms (ON) / 600 ms (OFF)) / 1 s (OFF) Cheksum error $ ()! #$! %$! *+',!$)' * 27

Chapter 28 2 #$! %$! *+',!$)' * $ ()! #$! %$! *+',!$)' *

3.1 Connection The NDDI22 (LS/GS) board is plugged in an interface position of the ACT shelf. changeend changebegin The following figure shows how the different daughter boards are connected to the NDDI22 board and what their positions are on the mother board. Figure 3.1: Connection diagram changebegin The following figures give details on how the daughter boards are assembled on the NDDI22 board (mother board). + ()! )!*$ ** )' *& 31

Chapter )!*$ ** )' *& changeend 3 Figure 3.2: Details on the different daughter boards assembly If the connection is: by cable, the distribution frame is carried out with a Type 1 cable with a distribution module (see TY1 64PTSDIN cable Cable with Module ) or without a distribution module (see TY1 64PTSDIN cable Cable without Module ). by patch panel (VH cabinet only), the connection is carried out directly using the patch panel: 2wire 32port module (see Patch Panel 32 ports module 32 ports module ). The CLIPIA daughter board possesses different assemblies. For more information on these assemblies, see NDDI22(LS/GS) CLIPIA Daughterboard Configuration. 3.2 Output pins on NDDI2 2 board The following table gives the positioning of the output pins on the back panel rear side of the NDDI22 board. table 3.1: Output pins on NDDI2 2 board 32 + ()! )!*$ ** )' *&

)!*$ ** )' *& Back panel rear side view Wire C Wire B Wire A Equipment number (Interface) Equipment 1 1 L1b (Ring) L1a (Tip) 2 L2b (Ring) L2a (Tip) Equipment 2 3 L3b (Ring) L3a (Tip) Equipment 3 4 L4b (Ring) L4a (Tip) Equipment 4 5 L5b (Ring) L5a (Tip) 6 L6b (Ring) L6a (Tip) Equipment 6 7 L7b (Ring) L7a (Tip) Equipment 7 8 L8b (Ring) L8a (Tip) Equipment 8 Equipment 5 9 10 11 12 13 14 15 GND 16 GND 17 18 19 A48VL_P 20 A48VL_P 21 22 23 GND 24 GND 25 GND 26 27 28 TXD 29 RXD 30 GND 31 STRAP + GND STRAP ()! )!*$ ** )' *& 33

Chapter 3 )!*$ ** )' *& Back panel rear side view Wire C 32 34 Wire B Wire A Equipment number (Interface) GND + ()! )!*$ ** )' *&

4.1 Overview The Call Line Identification Protocol Interface Adaptator (CLIPIA) daughter board allows the line impedance to be modified for: the CLIP function, the metering function. A daughter board handles 4 lines. You need 2 CLIPIA daughter boards for an NDDI22 (LS/GS) board. For more information on the CLIPIA board configuration, see NDDI22(LS/GS) CLIPIA Daughterboard Configuration. For more information on the CLIPIA board connection, see NDDI22(LS/GS) External connections. 4.2 CLIP function You need a line impedance of 600 Ohms (conversation excluded) to use the CLIP protocol. The CLIPIA board has, for each line, a relay controlled by the mother board allowing the 600Ohm line to be connected when it is not in conversation mode. 4.3 Metering function To manage accounting pulse reception on the line in some countries, you need a low impedance of 12 or 16 KHz (selected by a build). The CLIPIA board comprises a resonant circuit per line, a jumper allows a resonance at 12 or 16 KHz to be selected. ()!. / 0 $,)1! $! 2(!$)' * 41

Chapter 42 4. / 0 $,)1! $! 2(!$)' * ()!. / 0 $,)1! $! 2(!$)' *

5.1 Reference The CLIPIA board reference is 3BA 23173 AA. 5.2 Board assembly changeend changebegin The following figures show how the CLIPIA board is assembled on the NDDI22 board. changeend changebegin Figure 5.1: CLIPIA board on NDDI2 2 board Figure 5.2: Jumpers on CLIPIA board The following table gives the position of the jumpers on the CLIPIA daughter boards. Daugther board CLIPIA 1 table 5.1: Jumpers on CLIPIA board Equipment number (Interface) Equipement 1 X1 Equipement 2 X2 Equipement 3 X3 Equipement 4 X4 Jumper ()!. / 0 $,1)! $!. *+',!$)' * 51

Chapter 5. / 0 $,1)! $!. *+',!$)' * Daugther board CLIPIA 2 52 Equipment number (Interface) Jumper Equipement 5 X1 Equipement 6 X2 Equipement 7 X3 Equipement 8 X4 ()!. / 0 $,1)! $!. *+',!$)' *

6.1! " #!"$ Overview The Ground Start daughter board reference is 3BA 23196 AA. The Ground Start daughter board installed on the NDDI22 (LS/GS) board is a Line Adaptation which allows to seize the line via the ground and to detect incoming calls via grounding a line wire. This board is equipped for Ground Start signaling (only available in the US market). A Ground Start daughter board is dedicated to 4 network lines. You need 2 Ground Start daughter boards on the NDDI22 (LS/GS) board. The Ground Start daughter board has no strappings. For more information on the Ground Start daughter board connection, see NDDI22(LS/GS) External connections. 6.2 Operation The ground is sent on the Ring wire and detected on the Tip wire. The Ground Start board has: two control points: CET (Terminal State Command) Earth commands connection to the ground on the Ring wire (1 for connection), CET Earth Det On commands connection to the ground on the Tip wire (1 for connection). The ground detector may be disconnected during all offhook phase and dialing phase. The disconnection may be generated by ground detector during the conversation phase. one scan point, OET (Terminal State Scan) BDET, which indicates the presence of the " ()!! * )$!) $,1)! $! 2(!$)' * 61

Chapter 6! * )$!) $,1)! $! 2(!$)' * ground on the Tip wire. 62 " ()!! * )$!) $,1)! $! 2(!$)' *

7.1 % & Overview The metering detector daughter board reference is 3AH 37003 AA. The metering detector daughter board detects charging impulses. These impulses, coming from the public network, can be used by the metering process. This daughter board is optional. A metering detector daughter board is plugged on the NDDI22 (LS/GS) mother board and can process four analog lines. Two daughter boards are needed for the eight lines of NDDI22 (LS/GS). Note: Two different types of metering detector daughter board must not be installed on a same NDDI22 (LS/GS) mother board. For more information on connection, see: NDDI22(LS/GS) External connections. The metering detector daughter board can detect 12 or 16 khz impulses. The type of impulses to be detected can be configured with straps located on the mother board. The sensitivity of detection (in mv) can be adjusted to the impulse level with straps located on the mother board. For more information on configuration, see: NDDI22(LS/GS) Hardware configuration. $$! " 3 )!'*, ) )' * $,1)! 4 $! 71

Chapter 72 7 3 )!'*, ) )' * $,1)! 4 $! $$! " 3 )!'*, ) )' * $,1)! 4 $!