Sonifex HY02 DIGITAL User Handbook Manual
Automatic telephone balance unit
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HY02 DIGITAL AUTOMATIC
TELEPHONE BALANCE UNIT
DHY 02S
DHY 02T
DHY 02SR
DHY 02TR
Information in this document is subject to change without notice and does not represent a commitment on the part of Sonifex Ltd. No
part of this manual and/or databases may be reproduced or transmitted in any form or by any means, electronic or mechanical,
including photocopying, recording, or information storage and retrieval systems, for any purpose other than the purchaser's personal
use, without the express written permission of Sonifex Ltd.
Unless otherwise noted, all names of companies, products and persons contained herein are part of a completely fictitious adaptation
and are designed solely to document the use of Sonifex products.
USER HANDBOOK
Single automatic TBU, rack mounted with PSU.
Twin automatic TBU, rack mounted with PSU.
Single automatic TBU, with ringing detector.
Twin automatic TBU, with ringing detector.
SONIFEX LTD, 1995.
All Rights Reserved
Revision V1.00c, June 1995
61, Station Road, Irthlingborough,
Northants., NN9 5QE, England.
Tel : +44 (0)1933 650 700
Fax : +44 (0)1933 650 726
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Table of Contents
Related Manuals for Sonifex HY02 DIGITAL
Summary of Contents for Sonifex HY02 DIGITAL
- Page 1 Fax : +44 (0)1933 650 726 Information in this document is subject to change without notice and does not represent a commitment on the part of Sonifex Ltd. No part of this manual and/or databases may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or information storage and retrieval systems, for any purpose other than the purchaser’s personal...
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Page 2: Warranty And Safety Information
Warranty Registration HY02 Digital TBU Warranty Details The HY02 Digital audio product is guaranteed for 12 months from the date of purchase. The components and materials used are guaranteed against defects and faulty workmanship. Sonifex undertake to replace or repair faulty items at its discretion, within the warranty period, on a return to factory basis. -
Page 3: Equipment Safety
The rear panel of the equipment carries the Serial Number of the machine. The operating voltage of the HY02 Digital is selectable by a switch on the power inlet port. Ensure that the machine operating voltage is correct for your mains power supply. The safety specification of your HY02 Digital complies with local requirements and must be earthed through the mains connector. -
Page 4: Fuse Rating
Customer Remedies - Sonifex's entire liability and your exclusive remedy shall be, at Sonifex's option, either (a) return of the price paid or (b) repair or replacement of the SOFTWARE or hardware that does not meet Sonifex's Limited Warranty and which is returned to Sonifex with a copy of your receipt or invoice. -
Page 5: Faults Sheet
Description of HY02 Digital Error Also, if you have any suggestions for additions or upgrades to the HY02 Digital unit , we would like to hear what they are : Additions that I Would Like to See... - Page 6 Connection of Apparatus to BT Lines Equipment Type : Sonifex HY02 Digital Telephone Balance Unit BABT Approval Number : NS/3619/123/L/601748 This apparatus is suitable for connection directly to the network by means of the cable mounted plug provided. If you require an appropriate BT socket, or sockets, installed in order to use this equipment then this form should be sent to your local telephone area office.
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Page 7: Introduction & Installation
K-break and dial tone disconnect as standard. Audio connectors are the standard XLR-3 type. By using a high power DSP and a high quality 16 bit dual codec, the HY02 Digital gives some of the best audio figures available - it provides full adaptive echo cancellation to 28msec and gives unwanted sideband rejection figures of 69dBu on tone, reference peak output of +8dB. -
Page 8: Manufacturer
‘telephone’ signal at the output of the unit. 0dB signals presented at the line input are transmitted to the telephone line only. The HY02 Digital automatically balances the telephone line. -
Page 9: Conditions
NTTP BT6/502 cord plug ( plugs into standard line jack socket ) BT605A socket ( accepts standard telephone plug ) Telephone instrument Remotes 5 way IP40 Power IEC mains ( CEE22 ) 230V 50Hz Earth Bond Screw Screen terminal bond to earth HY02 Digital TBU User's Guide... -
Page 10: Installing The Hy02 Digital Tbu
Page 1-4 Introduction & Installation 1.4. Installing the HY02 Digital TBU Connect the power and earth connections as per the information given in the Warranty and Safety Information section of the handbook. The hybrid unit should be connected with reference to Figure 1-1 below which shows the connections for a twin hybrid. If you are using a single hybrid, please ignore the connections to DHY02 Hybrid Unit 2. -
Page 11: Using The Hy02 Digital
Introduction & Installation Page 1-5 1.5. Using the HY02 Digital 1.5.1. Receiving a Call With the equipment connected as in Figure 1-1, calls may be received and detected by the ringer in the telephone handset. To receive the call, lift the handset and establish contact with the caller. -
Page 12: Line Connect Switch
( where the bar graph meter never reaches the 0dB point ). The transmit switch is set to Medium by default. Setting Receive Level Transmit Level ( ref 0dB output ) ( ref 0db input ) High +12dB Medium +6dB -6dB -12dB HY02 Digital TBU User's Guide... - Page 13 Q : What are the main advantages between a conventional analogue hybrid and the HY02 Digital ? A : There are two : The main advantage is that the HY02 Digital rejects signals equally across its frequency band which results in a much better total rejection ratio. The second advantage is that the HY02 Digital can handle line echo and reflections of up to 28msec.
- Page 14 Page 1-8 Introduction & Installation This page deliberately blank HY02 Digital TBU User's Guide...
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Page 15: Circuit Description & Controls
Page 2-1 2. Circuit Description & Controls The HY02 Digital Telephone Hybrid consists of two parts separately enclosed for safety within a 19” rack frame housing. The two parts are connected by linking cables at the rear of rack frame. Isolation is achieved by means of the barriers created at the power supply and the hybrid electronics. - Page 16 Page 2-2 Circuit Description & Controls HY02 Digital TBU User's Guide...
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Page 17: Telephone Line, Barrier And Transformer
K break and dial hang up tone will also untrigger the latch when required to do so. A signal from the logic operates input muting when the handset is in use preventing spurious output signals at the equipment. HY02 Digital TBU User's Guide... -
Page 18: Line Balancing Electronics
-10dB -10dB -20dB -22dB 30dB -41dB 40dB -57dB 50dB -66dB Attack: 125mS, decay, 1dB per 5mS Transmit set to medium : As above, but input 0dB for 0dBM to line. Transmit set to high : HY02 Digital TBU User's Guide... -
Page 19: Receive Circuit
Ringing tones are detected by the circuitry formed by Q12, Q11, Q10 and Q9. Ring sensitivity is adjusted by RV3. The output of the ring detector is coupled to the divert switch latch by Q7 and the jumper connection JP3. HY02 Digital TBU User's Guide... -
Page 20: Dial Tone Detectors
Dial tones presented to the equipment at the termination of a call, ( hang up tone ) can be detected by the equipment and can be used to disconnect the HY02 Digital from the telephone line as an automatic process. -
Page 21: Alignment Controls
This sets the number of rings before operation of the ringing detector between 1 and 5 rings. 2.3.3. LEDs Status LED provides error message information ( See Section 2.2.8 ). Transmit LED is on whenever transmitting. Receive LED is on whenever receiving. HY02 Digital TBU User's Guide... - Page 22 Page 2-8 Circuit Description & Controls HY02 Digital TBU User's Guide...
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Page 23: Connection Details
Pin 2 : Phase Pin 3 : Non-phase 3.1.4. Remotes The HY02 Digital is equipped with a 5 way IP40 connector which is assigned as follows : Pin 1 : Lamp Hybrid Unit 1 Pin 2 : Divert Switch ( Line Connect ), Hybrid Unit 1... -
Page 24: Power
-15V Pin 3 : Common Pin 4 : Earth Pin 5 : Earth Pin 6 : Remote line connect switch Pin 7 : Remote line connect lamp 3.1.6. Protective Earth Terminal This terminal must be connected. HY02 Digital User's Guide... -
Page 25: Index
Page 0 Index HY02 Digital TBU User's Guide... -
Page 26: Table Of Contents
1.2.9. Series Connection ....................1-3 1.2.10. Facilities......................1-3 1.2.11. Statutory Mark ....................1-3 1.3. Specification ......................1-3 1.4. Installing the HY02 Digital TBU................1-4 1.5. Using the HY02 Digital ....................1-5 1.5.1. Receiving a Call....................1-5 1.5.2. Making a Call ......................1-5 1.6. Front Panel Controls and Displays................1-5 1.6.1. - Page 27 HY02 Digital TBU User's Guide...
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Page 28: Hy02 Digital Tbu User's Guide
Line Output Connections, 1-4, 3-1 Mains Lead Connection, ii Model Types, 1-1 NTTP Port connection, 1-4 Options, 2-7 Output Circuitry, 2-3 Potentiometer Settings, 2-7 Power Connections Between Power Supply & TBU, 3-2 Power Connector, 3-1 HY02 Digital TBU User's Guide...
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