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Related Manuals for Sonifex DHY-03
Summary of Contents for Sonifex DHY-03
- Page 1 Digital Telephone Hybrid User Handbook...
- Page 2 Information in this document is subject to change without notice and does not represent a commitment on the part of the vendor. Sonifex Ltd shall not be liable for any loss or damage whatsoever arising from the use of information or any error contained in this manual.
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Page 3: Table Of Contents
Model DHY-03EC Eurocard automatic digital TBU Connecting the DHY-03 TBU Using the DHY-03 First Use Using the DHY-03 with the Broadcast Bionics PhoneBox Using the DHY-03 with Internal Telephone Exchanges Receiving a Call Integrated Ringing Detector – Auto Answer Making a Call... - Page 4 Acoustic Cancellation Enable – SW6 {OFF} Network Cancellation Enable – SW7 {ON} Country Set on Power Up – SW8 {OFF} Remotes RS232 Serial Port DHY-03 Internal Controls & Adjustments Configuration & Controls - DHY-03EC Controls Power LED Indicator Gain Jumpers Tricolour LED Level Indicators Status &...
- Page 5 Cycles for Transform – parameters 203,211,219,227,235,243 Coefficient for Tone 1 – parameters 204,212,220,228,236,244 Coefficient for Tone 2 – parameters 205,213,221,229,237,245 Threshold Level – parameters 206,214,222,230,238,246 Technical Specification DHY-03 Connection Details Line Output Mic/Line Input Remotes RS232 Serial Port Telephone Handset...
- Page 6 Table A : Packing List. Table B : Power Connections. Table C : Mains Lead Table. Figure 1-1 : DHY-03 Front & Rear. Figure 1-2 : DHY-03S Front & Rear. Figure 1-3 : DHY-03T Front & Rear. Figure 1-4 : DHY-03EC View From Above.
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Page 7: Warranty
Company. In respect of computer software supplied by the Company the Company does not warrant that the use of the software will be uninterrupted or error free. The Company accepts liability: DHY-03 User Handbook... - Page 8 Seller in Condition (c). Where the Goods are sold under a consumer transaction (as defined by the Consumer Transactions (Restrictions on Statements) Order 1976) the statutory rights of the Purchaser are not affected by these Conditions of Sale. DHY-03 User Handbook...
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Page 9: Unpacking The Dhy-03
In order to register the date of purchase so that we can keep you informed of any design improvements or modifications, it is important to complete the warranty registration document that is enclosed and return it to Sonifex Ltd in the UK, or register online at www.sonifex.co.uk/register For your own records you should write down the serial number (which can be found on the rear of the DHY-03 or on the connector on the DHY-03EC. -
Page 10: Safety Information
Fuse Rating The DHY-03 is supplied with a single fuse in the live conducting path of the mains power input. For reasons of safety it is important that the correct rating and type of fuse is used. -
Page 11: Power Cable And Connection
– this is a legal requirement. If no moulded plug has been supplied with your DHY-03, please contact your supplier, because an IEC connector is always supplied from the Sonifex factory. If for any reason, you need to use the DHY-03 with a different power cable, you should use the following wiring guidelines... -
Page 12: Ordering The Correct Mains Lead
SAFETY INFORMATION Ordering the Correct Mains Lead When ordering a TBU from Sonifex, it is helpful if you can specify your required operating voltage and mains lead. After the product code add: UK, for 230V, UK 3 pin to IEC lead... -
Page 13: Weee & Rohs Directives - Sonifex Statement
It gives a contact for individuals who are unsure about the correct procedure when the product has reached its “end of use”. Sonifex Ltd will be happy to give you information about local organisations that can reprocess the products, or alternatively all products that have reached “end of use” can be returned to Sonifex and will be reprocessed correctly free of charge. -
Page 14: Reporting Faults
Description of DHY-03 Error Also, if you have any suggestions for additions or upgrades to the DHY-03 unit , we would like to hear what they are : Additions that I Would Like to See... -
Page 15: Introduction
DHY-03 can be used for any application where a clean telephone signal is required and the line is not subject to excessive delay. The DHY-03 retains many of the features of the DHY-02 and adds some additional ones. Some of the features of the DHY-03 include: Fully automatic - adapts to varying line conditions and has automatic signal limiting. -
Page 16: What Is A Telephone Hybrid
Most of the other units are supplied to communication operations for allowing extremely effective conversion between four-wire audio circuits and standard telephone lines. Built to a very high specification, the DHY-03 is simple to install and automatically adapts to line conditions and programme content. -
Page 17: Model Dhy-03 Automatic Digital Tbu
INTRODUCTION Model DHY-03 Automatic digital TBU Figure 1-1 : DHY-03 Front & Rear. Model DHY-03S Automatic digital TBU Figure 1-2 : DHY-03S Front & Rear. Model DHY-03T Twin automatic digital TBU Figure 1-3 : DHY-03T Front & Rear. Model DHY-03EC Eurocard automatic digital TBU Figure 1-4 : DHY-03EC View From Above. -
Page 18: Connecting The Dhy-03 Tbu
Connect the output from the mixing desk “clean-feed” to the mic/line input of the DHY-03, with the mic/line input select switch set to “line”. A clean-feed is a signal produced by a telco module on a mixer which is used as the output to be fed back to a caller on a telephone line. -
Page 19: Using The Dhy-03
INTRODUCTION on the rear panel. The input circuitry to the DHY-03 has a very effective limiter, which will prevent high level overloading problems. Ideally, the maximum input level should not exceed +12dBu. This limiter is used for both line and mic input modes. -
Page 20: Receiving A Call
The DHY-03 has a built in ring detector that is enabled by setting SW4 on the rear panel. -
Page 21: Call Established
Integrated Disconnect Detector – Auto Disconnect The DHY-03 can detect when a call has been dropped by the caller and can release the line. There are a variety of ways that the central exchange can signal this to remote equipment and the DHY-03 supports the 3 most common methods: –... -
Page 22: Using The Conference Port As A Record Output
If you are not using the conference port, it can be used to provide a balanced audio output from the Conference Output Phase and Non-Phase pins. This output will contain just the caller signal unless JP3 is fitted (see Figure 2-5), which will create a mix of caller and sender on the record output. DHY-03 User Handbook... -
Page 23: Configuration & Controls - Dhy-03, Dhy-03S, Dhy-03T
CONFIGURATION & CONTROLS 2 Configuration & Controls - DHY-03, DHY-03S, DHY-03T Front Panel Controls Receive Gain Switch Bargraphs Power Reset Line Transmit Gain Button Connect Switch Indicator Button Figure 2-1 : Front Panel Controls. Power LED Indicator The power LED indicates that the equipment is powered and operational when illuminated. -
Page 24: Status & Operating Mode Information
The LED display is also used to indicate special operating modes and other settings as follows: Alternating 2 LEDs on, 2 LEDs off pattern indicates that the DHY-03 is checking the status of the Line Connect Button to test the Bootstrap Mode (see page 24). -
Page 25: Reset Button
CONFIGURATION & CONTROLS Reset Button In the unlikely event that the DHY-03 unit fails to respond, press the reset button to reboot the unit. Rear Panel Controls Mic Level Mic/Line Configuration Input Select Settings Switch Switches Figure 2-2 : Rear Panel Controls. -
Page 26: Noise Gate Select - Sw1 {On
Auto Disconnect Enable - SW3 {ON} When SW3 is enabled (ON) the DHY-03 will automatically disconnect from the telephone line by detecting appropriate disconnect regime selected for the specific country according to the selected country code (see Table 2-2). Line reversal and K-break work by changing the voltage on the line and have parameters settings which indicate a duration range for which this voltage change must be present. -
Page 27: Acoustic Cancellation Enable - Sw6 {Off
Network Cancellation Enable – SW7 {ON} When switch SW7 is enabled (on) the DHY-03 will perform the echo cancellation routine on the incoming signal from the telephone line. This would be the normal operational setting, but it may be disabled for special circumstances. -
Page 28: Dhy-03 Internal Controls & Adjustments
CONFIGURATION & CONTROLS DHY-03 Internal Controls & Adjustments If you need to get inside the unit to make configuration adjustments, simply remove the 4 screws in the corners of the rear panel. The rear panel and main PCB will slide backwards out of the metal chassis. -
Page 29: Configuration & Controls - Dhy-03Ec
(right). For best operation set the signal gain switches to achieve LED mostly illuminated yellow with occasional audio peaks lighting the red LED. The scale indicates – Green (-30dB, to -3dB); Yellow (-3dB, to +6dB); & Red (+6dB, LED). DHY-03 User Handbook... -
Page 30: Status & Operating Mode Information
If there is a fault during power up, the Tx Red & Rx Red LEDs will flash alternately. Once initialisation is complete the LEDs show the level info as above. Reset Button In the unlikely event that the DHY-03 unit fails to respond, press the reset button to reboot the unit. Configuration Settings Switches The SETTINGS switches are used to configure the DHY-03 in the modes that you want it to operate. -
Page 31: Noise Gate Select - Sw1 {On
Network Cancellation Enable – SW7 {ON} When switch SW7 is enabled (on) the DHY-03 will perform the echo cancellation routine on the incoming signal from the telephone line. This would be the normal operational setting, but it may be disabled for special circumstances, e.g. -
Page 32: Momentary Latching Function -Sw9 {Off
DTMF detect function. See chapter 4 for connection details. RS232 Serial Port The serial port allows the user to remote control the DHY-03 connection, including the ability to dial out using Tone Dialling. This port is also used to adjust the operational parameters and upload new firmware. -
Page 33: Country Code Selection
CONFIGURATION & CONTROLS Country Code Selection The correct country code selection is essential for proper operation of the DHY-03 unit. It ensures that all telephone approval parameters are met for operation of this unit in various parts of the world. The table below is likely to change - additional countries or PABXs and possible detail changes for existing countries. - Page 34 400Hz * Continuous 2+3+7 400Hz * Continuous 1+2+3+7 United Kingdom I 400Hz * Continuous United Kingdom II K-Break 1+4+7 United States I 400Hz * Continuous 2+4+7 United States II Line Reversal 1+2+4+7 United States III 440Hz Continuous 3+4+7 DHY-03 User Handbook...
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Page 35: Hybrid Technical Description
The telephone system is essentially similar from country to country, but there are small yet significant changes around the globe: e.g. max signal levels, line current limits, ringing conditions etc. These values are preset by the country code selection and can be adjusted via the serial port parameters. DHY-03 User Handbook... -
Page 36: Impedance Matching
When the DHY-03 has been set to perform a calibration a call must be established on the actual line to be used by the system. Once a call is established then the DHY-03 will allow 10 seconds for the call conditions to stabilise and the caller to mute their handset, so that any signal present on the line is due to echo from the DHY-03 sent signal. -
Page 37: Calibration Of Telephone Interface
DHY-03 will perform a network cancellation coefficients calibration. Calibration of Network Cancellation Coefficients The DHY-03 will generate a 31 frequency multi-tone signal to cover the full range of the telephone bandwidth and this will be sent to the line in a 2 second on, ½ second off cadence. -
Page 38: Serial Port Control
DHY-03 hybrid. In setting mode no call control is available. Bootstrap Mode is entered by default when the flash memory doesn’t contain valid firmware (e.g. -
Page 39: Setting Mode Commands
- ACK: or NAK: wait for ACK: then send S-records followed by S-record terminator to force programming of flash memory and reboot SRQ: - Status Request - STA:nn where nn is state of DHY-03 UID: - Unit ID request - UID:DHY-03 or UID: DHY-03EC VER: - version request - BOOT:x.xx... -
Page 40: Error Messages
- Write Parameter is Read Only ERR:08 - No Line Volts present DHY-03 Serial Parameters Parameters are read and written using the RDP and WRP commands in setting mode only Note: parameter values are described below using decimal values but are sent and received in Hex. - Page 41 Similarly to Current Telephone Interface Settings User1 Telephone Interface Parameters are 50-74 User2 Telephone Interface Parameters are 75-99 User3 Telephone Interface Parameters are 100-124 User4 Telephone Interface Parameters are 125-149 User5 Telephone Interface Parameters are 150-174 User6 Telephone Interface Parameters are 175-199 DHY-03 User Handbook...
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Page 42: Extended Parameter Description
10). Network Network Line Cancellation Cadence Line Input Received Transmit Output Status Status Top Row Bottom Debug Status Table 3-1 : Meter Select Parameter Values. * = default value and set value for firmware versions before v1.40 DHY-03 User Handbook... -
Page 43: Disconnect Type - Parameters 25,50,75,100,125,150,175
Manual ADC Auto ADC Overload Function ADC Calibration Calibration Calibration Protect Value 128 = Clear Data 64 = Initiate Calibration 32 = Disable 8 = Enable Table 3-4 : Telephone Interface Register 17. (Use sum of required values) DHY-03 User Handbook... -
Page 44: Telephone Interface Register 18 - Parameters 30,55,80,105,130,155,180
1024 1152 1280 1408 1536 1664 1792 1920 Table 3-8 : Telephone Interface Register 23 - RTO Values. RCC Value in Reg 23 Timeout in ms 1024 Table 3-9 : Telephone Interface Register 23 – RCC Values. DHY-03 User Handbook... -
Page 45: Telephone Interface Register 24 - Parameters 33,58,83,108,133,158,183
Telephone Interface Register 30 - parameters 35,60,85,110,135,160,185 Name FULL2 ACIM Function Enhanced Full Scale (x2) AC Impedance Value 16 = 2 x Full Scale Tx/Rx See Table 4-12 Table 3-12 : Telephone Interface Register 30. (Use sum of required values) DHY-03 User Handbook... -
Page 46: Ac Impedance Setting
SQ1 & SQ0 Function Spark Quenching Receive Gain 1 Guarded Clear Enable 0 = Normal; 4=Add 1dB Gain to 2=Telephone Interface Value 80=Australian Spec. Hybrid Draws 2.5mA Table 3-15 : Telephone Interface Register 59. (Use sum of required values) DHY-03 User Handbook... -
Page 47: Telephone Interface Adaptation Differential - Parameters 43,68,93,118,143,168,193
Bit 7 is set to lower the noise gate threshold, which means that the noise gate will activate once a signal has fallen to a signal level 5db lower than at present. DHY-03 User Handbook... -
Page 48: Disconnect Tones - Parameters 200,208,216,224,232,240
Threshold Level – parameters 206,214,222,230,238,246 This parameter sets the acceptable level that a tone must be present for successful detection of that tone to be indicated. DHY-03 User Handbook... -
Page 49: Technical Specification
TECHNICAL SPECIFICATION 4 Technical Specification DHY-03 Connection Details All of the connections are located on the rear of the DHY-03 : RS232 Serial Protective Remotes Port Earth Terminal Line Mic/Line Conference Telephone Telephone Fuse Mains Output Input Audio Handset Line... -
Page 50: Remotes
Pin 5 Female Pin 1 Pin 3 : RxD Pin 4 : N/C Pin 5 : Ground Pin 9 Pin 6 Pin 6 : N/C Pin 7 : CTS Pin 8 : RTS Pin 9 : N/C DHY-03 User Handbook... -
Page 51: Telephone Handset
Conference Audio/Record Output This is an RJ45 analog audio connector to cross connect to another DHY-03. This will allow a single TBU channel on a mixing desk to handle 2 calls, one to each DHY-03. Alternatively the conference output signals can be used as a record output by fitting the JP3 jumper on the main PCB. -
Page 52: Dhy-03Ec I/O Connector
Serial Port RxD (data in) - Pin 3 on 9 Way D Type Pin 31 Serial Port RTS (handshare out) - Pin 8 on 9 Way D Type Pin 32 0V (serial ground) - Pin 5 on 9 Way D Type DHY-03 User Handbook... -
Page 53: Technical Specification
12.9cm 4.0cm DHY-03EC 19.0cm 150g 500g Eurocard model (3U) (8E) (PCB 10x16cm) Table 4-2 : Physical Specification. *Depth is measured from the front of the divert button to the back of the remotes connectors. DHY-03 User Handbook... -
Page 54: Table 4-3 :
The divert relay will disconnect the handset from the line when the call is being handled by the DHY-03. For the DHY-03EC and for later models of the DHY-03 (serial numbers 507 - 581 and 600 onwards) this relay is fitted internally. To disable the divert relay use the serial port to set parameter 2 to just the DTMF select value (default DTMF is * so parameter 2 is 13 or 0D hex). - Page 55 TECHNICAL SPECIFICATION Specified Systems The DHY-03 is suitable for connection to any exchange line forming part of a Public Switched Telephone Network, PSTN, or a Relevant Branch system for PSTN lines or any extension. This equipment is not suitable as an extension to a payphone. A definition of Relevant Branch System for PSTN is given in BS6789 : Section 6.1 : 1986 Clause 2.9;...
- Page 56 w w w . s o n i f e x . c o . u k t:+44 (0)1933 650 700 f:+44 (0)1933 650 726 s a l e s @ s o n i fex . co. u k...
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