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Sine Systems DAI-2 Installation And Operation Manual

Dial-up audio interface
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Dial-up Audio Interface
Model DAI-2
– INSTALLATION AND OPERATION –
DAI-2 firmware version 2.00
DAI-2 hardware revision 1
DAI-RP hardware revision 1
Nashville, Tennessee • 615-228-3500
www.sinesystems.com

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  • Page 1 Dial-up Audio Interface Model DAI-2 – INSTALLATION AND OPERATION – DAI-2 firmware version 2.00 DAI-2 hardware revision 1 DAI-RP hardware revision 1 Nashville, Tennessee • 615-228-3500 www.sinesystems.com...

  • Page 2: Table Of Contents

    Lightning Protection Tips Proper Ground System Telephone Line Protection Section 4 – Operation Overview Operation from a Remote Telephone Going Online with the DAI-2 Issuing Commands Shift Key Commands Going Offline with the DAI-2 Operaton from a Local Telephone Connect Button...
  • Page 3 Factory Command Matrix Programming 5.24 Section 6 – Troubleshooting and Repair Common Problems and Possible Solutions Factory Service Policy Repair Procedure Section 7 – Specifications Electrical & Mechanical Specifications Flat Cable Pinout Schematic Diagrams Component Layouts Parts List DAI-2 Table of Contents...

  • Page 4: Section I - Safety Information Page

    Depending on the installation, substantial voltages may be connected the DAI-2 relay panel. If this is the case, use extreme care when working in the vicinity of the DAI-2 and disconnect all sources of high voltage before contacting it. The DAI-2 contains self-resetting "fuses" that protect it from excessive current.

  • Page 5: Section 2 - Fcc Information

    Part 68 Compliance The DAI-2 complies with Part 68 of the FCC rules. On the rear panel of the DAI-2 is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN) for this equipment. If requested, this information must be provided to the telephone company.

  • Page 6: Section 3 - Installation

    Installing the System The DAI-2 is easy to install if you are careful, patient and alert. Installation is broken down into a series of logical steps but you should have some previous engineering experience in a broadcast environment before attempting to install the DAI-2.

  • Page 7: Mechanical Installation

    One end of the flat cable connects to the rear of the DAI-2 control unit at the connector labeled “Relay Panel” (see Figure 3.2). This connector is keyed to fit in one direction and will be held secure by latches when fully inserted.

  • Page 8: Audio I/O Connection

    The audio output level of the DAI-2 is adjustable through programming. This is covered in the programming section of this manual. The DAI-2 is factory programmed to a program level of about +2 to +4 dBm with a slight amount of peak clipping.

  • Page 9: Manual Connect Input

    Control Relay I/O Connections The DAI-2 has eight control relays built in to the relay panel. Seven of these relays are DPDT and one is 4PDT-- typically used to switch stereo audio. All contacts, normally-open (NO), normally-closed (NC) and common (COM) are brought out to pluggable screw terminal connectors.

  • Page 10: Telephone Interface

    Power to operate the DAI-2 is supplied by a 12 volt DC wall-plug transformer that is included with the DAI-2. This transformer is designed for 120 volts AC at 50-60 Hz and is rated at 500 milliamps. The leads of this transformer should be stripped and tinned and connected to the appropriate screw terminal connectors on J9 of the relay panel.

  • Page 11: Use With Rpu Equipment

    It is easy to construct an extremely versatile system that allows two communications links to be used with the DAI-2. Either a telephone line or the output of the RPU receiver can be connected to the DAI-2 using the squelch relay in an RPU receiver to control a DPDT relay as shown in Figure 3.5.

  • Page 12: Lightning Protection Tips

    In some installations this happens frequently. Lightning can enter through the phone line, mistreat the DAI-2 and exit to the station ground system. It can also hit the tower, elevate the entire ground system above ground by several kilovolts and exit through DAI-2 to ground. This is called a "ground surge."...
  • Page 13 Relay Panel Wiring Diagrams 3.7.1 Soundbite Recorder DAI-2 Installation page 3. 8...
  • Page 14 3.7.2 Remote Broadcaster DAI-2 Installation page 3. 9...
  • Page 15 3.7.3 Emergency Broadcaster DAI-2 Installation page 3. 10...

  • Page 16: Section 4 - Operation

    Shift Key Commands In the DAI-2, the ❊ key acts as a shift key which, in conjunction with a second key, causes the unit to perform a specific pre-programmed action. These actions are controlled by the DAI-2 and are not programmable by the user.

  • Page 17: Operaton From A Local Telephone

    Connect the DAI-2 to the receiving line and call it from the calling line. Press the Connect button when you hear the line ringing. This will force the DAI-2 to seize the line and place it in the operating mode as if the security codes were successfully entered.

  • Page 18: Manual Connection Without Telephone Lines

    Use proper precautions when handling the circuit board. This procedure places a 12 VDC voltage source on the modular connector J1 to power a telephone set directly. It is important that the DAI-2 not be connected to a telephone line with the jumpers in this position.

  • Page 19: Operation On A Shared Telephone Line

    Although the DAI-2 is normally installed at the studio, situations do exist where the DAI-2 is installed at a transmitter site. The remote control will probably be used more often than the DAI-2 so it will be given priority. When it is not the desired target device, it can be used to pass the call over to the DAI-2.

  • Page 20: Control Via Vhf Or Microwave Rpu

    ❊❊❊❊ to activate the DAI-2. When the DAI-2 activates this way it will not require security code for access. When the DAI-2 is waiting for a security code it will not recongize a telephone hang-up (if it did, it would release the line when the remote control drops off).

  • Page 21: 4.5.2 Command Set 1 -- Soundbite Recorder

    Command Set 1 is factory programmed to control an open reel or cart recorder as a soundbite recorder. A suggested connection diagram is given in the Installation section of this manual to operate the DAI-2 with this command set. Establish a connection to the DAI-2, enter the appropriate security code to access the operating mode. The keypad...

  • Page 22: 4.5.3 Command Set 2 -- Remote Broadcaster

    4.5.3 Command Set 2 -- Remote Broadcaster Command Set 2 is factory programmed as a control unit for remote broadcasts. In this configuration the DAI-2 is used to start cart machines and switch audio while the air personality is at a remote site. A suggested connection diagram is given in the Installation section of this manual to operate the DAI-2 with this command set.

  • Page 23: Command Set 3 -- Emergency Broadcaster

    The following text describes one way of using the DAI-2 to help meet EAS obligations. It is not meant to suggest that this is the way to install the DAI-2 to be "FCC legal". There are many ways to install the DAI-2 as part of an effective EAS system, however, we suggest that you discuss your proposed system with your communications attorney or the FCC before installing the DAI-2.

  • Page 24: Section 5 - Programming

    12 telephone keys). To solve this problem, the DAI-2 has an area of memory that is arranged as a 16 x 16 table. Each of the 16 rows represents a key or an input to the DAI-2 and each of the 16 columns represents an event that can happen when the input occurs.

  • Page 25: Programming Mode

    In addition to the keys and logic level inputs, the command matrix includes an action called "Power up". Power up determines how the relays, etc., will be set when the DAI-2 is powered on or when a call ends and the DAI-2 hangs up.

  • Page 26: Read From Memory

    The DAI-2 automatically increments the address one location after it reads the data. If you press the # key again, the DAI-2 will read the data from the next address and so on. It is possible to increment through all addresses this way.

  • Page 27: Write To Memory

    5.3.3 Write to Memory Write mode is used to change system settings to alter the behavior of the DAI-2. It works just like read mode except that you supply new data before pressing the enter key #. invoke the programming write mode by pressing ❊-8 •...

  • Page 28: Alarm System

    The tones will be sent for the duration of the call unless a user clears the alarm. Press the ❊ key to clear the alarm. The DAI-2 will respond with one long tone as a prompt to enter the security code. Enter the security code to go online with the DAI-2.

  • Page 29: Programming Example

    DAI-2 responds with one long tone to prompt for the programming security code • enter the programming security code: 1266 • the DAI-2 responds with two short beeps to confirm that it is in programming write mode • enter the three digit address for the data you want to change: 002 •...

  • Page 30: Command Matrix

    Command programming consists of placing numbers that represent actions at specific locations in the memory of the DAI-2. It is best represented as a matrix with the possible commands listed down the side and the actions performed across the top.

  • Page 31: Command Matrix Settings

    Alarm Action Off--do not trip alarm On--trip alarm Values over 1 default to 0 Value Read Status Action Off--do not report status of input On--report state of input Values of 2 or more default to 1 DAI-2 Programming page 5. 8...

  • Page 32: 5.5 System Profile Settings

    Safeguard Timer The DAI-2 has a safeguard timer to keep the DAI-2 from staying on-line at a remote location indefinitely. If the unit is on-line and has not received a key or logic level command for the programmed length of time, it will hang up the line and reset to power up conditions.

  • Page 33: Logic-Level Inputs

    When the DAI-2 asks for a security code, a security code timer starts running. If this timer runs out before the code is given (correctly), the DAI-2 terminates the call. The time set here applies to all security code requests. The length of time that the user is allowed to give the code is programmable at address 359.

  • Page 34: Telephone Numbers

    It sends the identification tones as its alarm message during the call. The DAI-2 then pauses between calls in case station personnel are trying to call it. The length of a call and the length of a pause between calls are programmed at address 340 and 341 respectively.

  • Page 35: Ring Number

    5.5.7 Ring Number In cases where the DAI-2 shares a telephone line with other equipment it may be necessary to delay answering the line for a certain number of rings. Program the ring number to answer at address 347. Value...

  • Page 36: Dtmf Hold Time

    To reduce the chance of reacting to these false tones, the DAI-2 is programmed to ignore any tone until it has been present for a set length of time.

  • Page 37: 5.5.10 Slate Tone

    Longest tone A cue tone can be generated by the DAI-2 when it is being used to send audio. If the cue tone is enabled, the DAI-2 will send a single tone to indicate that the audio mode has switched and the telephone is sending audio. This will occur any time the audio mode is set to 3 or above.

  • Page 38: Memory Address List

    Memory Address List This is a list of all available memory address in the DAI-2. The command matrix occupies the first 256 memory locations from 000-255. System profile parameters start at address 256. Address Description Factory Setting User Setting (Factory Programming--Reset Emergency Receiver)
  • Page 39 _____ 4 Key, Slate tone _____ 4 Key, Alarm call _____ 4 Key, Read Status 1 _____ 4 Key, Read Status 2 _____ 4 Key, Reserved _____ 4 Key, Reserved _____ 4 Key, Reserved _____ DAI-2 Programming page 5. 16...
  • Page 40 _____ 7 Key, Slate tone _____ 7 Key, Alarm call _____ 7 Key, Read Status 1 _____ 7 Key, Read Status 2 _____ 7 Key, Reserved _____ 7 Key, Reserved _____ 7 Key, Reserved _____ DAI-2 Programming page 5. 17...
  • Page 41 _____ # Key, Slate tone _____ # Key, Alarm call _____ # Key, Read Status 1 _____ # Key, Read Status 2 _____ # Key, Reserved _____ # Key, Reserved _____ # Key, Reserved _____ DAI-2 Programming page 5. 18...
  • Page 42 _____ Logic Level In 3, Read Status 1 _____ Logic Level In 3, Read Status 2 _____ Logic Level In 3, Reserved _____ Logic Level In 3, Reserved _____ Logic Level In 3, Reserved _____ DAI-2 Programming page 5. 19...
  • Page 43 _____ Power Up, Slate tone _____ Power Up, Alarm call _____ Power Up, Read Status 1 _____ Power Up, Read Status 2 _____ Power Up, Reserved _____ Power Up, Reserved _____ Power Up, Reserved _____ DAI-2 Programming page 5. 20...
  • Page 44 C Telephone Number; Digit 10 _____ C Telephone Number; Digit 11 _____ C Telephone Number; Digit 12 _____ C Telephone Number; Digit 13 _____ C Telephone Number; Digit 14 _____ C Telephone Number; Digit 15 _____ DAI-2 Programming page 5. 21...
  • Page 45 Logic Level Input 4; Length _____ Telephone Call Length _____ Telephone Pause Length _____ Telephone Call Attempts _____ ALC Output Level _____ ALC Fixed Output Gain _____ ALC Output Release Speed _____ ALC Input Release Speed _____ DAI-2 Programming page 5. 22...
  • Page 46 _____ Security Code Timer _____ Pulse Hangup Inhibit _____ Leased Line Mode _____ Note: The column entitled "Paragraph" in the System Profile List above refers to the paragraph that describes this feature in Section 5.5. DAI-2 Programming page 5. 23...
  • Page 47 2 Key 3 Key 4 Key 5 Key 6 Key 7 Key 8 Key 9 Key # Key Logic 1 Logic 2 Logic 3 Logic 4 Power Up Fi gure 5.5; Factory command set 2--Remote Broadcaster DAI-2 Programming page 5. 24...
  • Page 48 1 Key 2 Key 3 Key 4 Key 5 Key 6 Key 7 Key 8 Key 9 Key # Key Logic 1 Logic 2 Logic 3 Logic 4 Power Up Figure 5.7; Blank command matrix DAI-2 Programming page 5. 25...

  • Page 49: Section 6 - Troubleshooting And Repair

    Solutions: Place a call to the DAI-2 while at the rear panel of the DAI-2. When you hear a ring, press the button labeled ‘Connect’ on the DAI-2. The DAI-2 will answer and the telephone will stop ringing but nothing else will happen.

  • Page 50: Factory Service Policy

    Factory Warranty Sine Systems, Inc. guarantees our products to be free from manufacturing defect for a period of one year from the original date of purchase from Sine Systems, Inc. This warranty covers the parts and labor necessary to repair the product to factory specifications.
  • Page 51 (including applicable shipping charges) so that suitable payment can be arranged before a COD shipment. If you need a COD total, do not forget to include a telephone number where you can be contacted. DAI-2 Troubleshooting and Repair page 6. 3...

  • Page 52: Repair Procedure

    If it is not, something is pulling it up or down. The current consumption of the DAI-2 at 12 volts DC should be about 80 milliamperes. If it is significantly more than this, remove the ICs one at a time until the current drops.
  • Page 53 Figure 6.1; DAI-2 block diagram D5 is a 15 volt, 5 watt zener which protects the DAI-2 from over-voltage and reverse-polarity on the power supply input. U9 is a standard 5 volt regulator. U-1 is a "low voltage interrupt" (LVI) device which resets the microprocessor if its supply voltage falls below 4.5 volts.

  • Page 54: Section 7 - Specifications

    Section 7 — Specifications DAI-2 Dial-up Audio Interface Power 12 Volts AC, 0.25 amps Ports Relay Panel (20 conductor pin/plug type) Line (RJ-11C modular) Power (screw terminals) Delay (internal 5 conductor pin/plug type) Controls Connect (SPST momentary push button) Inputs...

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