Dial-up Audio Interface Model DAI-2 – INSTALLATION AND OPERATION – This documentation is valid for Dial-up Audio Interface hardware version 1.03 with firmware version 2.
Table of Contents Section I – Safety Information 1.1 Safety Information Page 1.1 Section 2 – FCC Information 2.1 Part 68 Compliance 2.1 Section 3 – Installation 3.1 3.2 3.3 3.4 3.5 3.
Section 5 – Programming 5.1 5.2 5.3 5.4 5.5 5.6 5.
Section 1 — Safety Information ! The DAI-2 Dial-up Audio Interface should be installed only by qualified technical personnel. An attempt to install this device by a person who is not technically qualified could result in a hazardous condition to the installer or other personnel, and/or damage to the DAI-2 or other equipment. Please ensure that proper safety precautions have been made before installing this device.
Section 2 — FCC Information 2.1 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. The REN is used to determine the quantity of devices that may be connected to the telephone line.
Section 3 — Installation ! The DAI-2 Dial-up Audio Interface should be installed only by qualified technical personnel. An attempt to install this device by a person who is not technically qualified could result in a hazardous condition to the installer or other personnel, and/or damage to the DAI-2 or other equipment. Broadcast equipment can operate at voltages that are potentially lethal. Please ensure that proper safety precautions have been made before installing this device. 3.
3.2.1 Mechanical Installation The DAI-2 is designed to be mounted in a standard 19 inch equipment rack. The system generates little heat and can be mounted in just about any convenient location. The DAI-2 should be mounted at a location which is convenient to the equipment that will be connected to it. Figure 3.1; DAI-2 Dial-up Audio Interface 3.2.2 DAI-2 Relay Panel Interconnect The DAI-2 should be connected to its relay panel with the 20 conductor flat (ribbon) cable.
3.2.4 Audio I/O Connections The DAI-2 has one audio input and one audio output. The audio input feeds audio to the telephone line and the audio output provides audio from the telephone line. The DAI-2 control circuits allow only one audio port to be active at a time--the DAI-2 is not a telephone hybrid device. Both the input and output are balanced, high level audio ports. The audio input and output connections are made through screw terminals on the relay panel.
3.2.6 Manual Connect Input There is one single-purpose logic-level input that is used to force the DAI-2 to go off hook. Like the other logic-level inputs, this one can also be driven by a +5 VDC logic signal, a contact closure, or a ground referenced opencollector. Logic is active low and an internal pull-up resistors is present. The manual connect input is labeled MAN on the relay panel. 3.2.7 Control Relay I/O Connections The DAI-2 has eight control relays built in to the relay panel.
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 the relay panel. The positive lead (usually denoted by a white stripe) connects to the +12V terminal and the negative lead connects to GND on the relay panel. (See figure 3.
3.4 Use with RPU Equipment It is quite feasible to use the DAI-2 with communications links other than telephone lines. For example, the control and switching capabilities of the DAI-2 often can be useful during remotes using a UHF Remote Pickup Unit (RPU). The audio output of the RPU receiver should be adjusted to a level between -30 dBm and 0 dBm and then fed to the LINE jack on the DAI-2.
3.6 Lightning Protection Tips ! Damage to the DAI-2 by lightning is not covered under warranty. See the complete warranty for more information. In most installations the DAI-2 is connected to both a telephone line and other broadcast equipment. Any equipment in this situation is subject to severe abuse from lightning. In some installations this happens frequently. Lightning can enter through the phone line, mistreat the DAI-2 and exit to the station ground system.
3.7 Relay Panel Wiring Diagrams 3.7.1 Soundbite Recorder DAI-2 Installation page 3.
3.7.2 DAI-2 Remote Broadcaster Installation page 3.
3.7.3 DAI-2 Emergency Broadcaster Installation page 3.
Section 4 — Operation 4.1 Overview Since the DAI-2 is controlled by DTMF tones, operating the unit always begins by calling the number where it is located. The DAI-2 must be connected through a telephone line, even when bench testing, because (normally) the unit does not normally provide the necessary operating voltage to the telephone. No special phone line or equipment is required but the controlling telephone must be able to produce DTMF tones.
4.3 Operation from a Local Telephone While this is not the normal method of operation, it is possible to connect to the DAI-2 from a local telephone located near the DAI-2. A local connection is typically used only for initial programming or testing. A local connection bypasses the security codes. This can be particularly helpful if you change one or more codes are forget them. 4.3.1 Connect Button The following procedure uses the Connect button located on the rear panel of the DAI-2.
4.3.3 Manual Connection without Telephone Lines ! This procedure requires that the cover of the DAI-2 be removed. While the voltages inside the unit should not exceed about 12-15 VDC, even low voltages can be potentially lethal under certain conditions. This procedure should only be performed by qualified technical personnel. The procedure requires you to handle the DAI-2 circuit board. This board contains components that are sensitive to static electricity.
• Lift the telephone off hook and press (and release) the Connect button. A relay will click and the DAI-2 will connect to the telephone. Enter the attention code ❊❊❊❊ on the telephone keypad activate the DAI-2. You will hear two short beeps to confirm that you are connected. • Operate the DAI-2 as you would normally, making any changes you need to the system programming. • This step is extremely important! When you are finished, disconnect the ribbon and telephone cables.
Make sure that both devices are powered and establish a normal connection to your remote control. Issue the security codes and commands necessary to select and control channel 7. (In the case of the RFC-1/B, enter 07 to select channel 7 and enter the control security code 66.) Issue the command to activate the On/Raise control relay (# on the RFC-1/B). This command will activate the DAI-2 by bridging the Connect switch as described above.
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.
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. Establish a connection to the DAI-2, enter the appropriate security code to access the operating mode.
4.5.4 Command Set 3 -- Emergency Broadcast 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 DAI2 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.
Section 5 — Programming ! This section is for qualified technical personnel. It contains information that can change most of the operating characteristics of the DAI-2 system. Improper use of this information can cause incorrect readings, erratic behavior or lock remote users out of the system. We strongly recommend that you understand the basic operation of the DAI-2 and the specifics of the installation you are changing before applying the information in this section.
000 0 Key Read Status 2 On This Action Relay 1 Set to This State 1 016 001 1 017 002 0 018 003 0 019 004 3 020 005 1 021 006 2 022 007 0 023 008 009 2 024 0 025 010 1 026 011 1 027 012 0 028 013 0 029 014 0 030 015 0 031 1 Key Figure 5.1; Command matrix (excerpt) Any key (or logic-level input) can activate any or all relays. Key 1 and relay 1 are only “connected” if programming makes it so.
These items are common to both the read and write programming modes: • • • • • in programming mode, the # key acts like an enter key in programming mode, one long tone is a prompt for you to enter something in programming mode, two short beeps is an ‘OK’ response in programming mode, one long low tone means that an error has occurred the programming security code is: 1266 The DAI-2 will only prompt for the programming security code one time per call.
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 #.
5.3.5 Alarm System The DAI-2 alarm system monitors the status of the logic-level inputs. When an alarm input appears at one of the logic-level inputs, the DAI-2 will call the telephone numbers stored in its memory to report the condition. The telephone numbers will be dialed in rotation starting with the Telephone Number A, then B, C, D, A, B, etc. until the alarm is cleared or the programmed number of attempts has been made.
5.3.7 Programming Example 000 0 Key 1 016 001 002 1 017 003 0 018 0 019 004 3 020 005 006 1 021 007 2 022 008 0 023 009 2 024 0 025 010 0 026 011 012 0 027 013 0 028 0 029 014 0 030 Reserved Reserved Reserved Read Status 2 Read Status 1 Alarm call Slate tone Audio Relay 8 Relay 7 Relay 6 Relay 5 Relay 4 Relay 3 On This Action Relay 2 Set to This State Relay 1 We can use an sample from the command matrix to illustrate how this system works.
5.4 Command Matrix Reserved Reserved Reserved Status 2 Status 1 Alarm Call Audio Relay 8 Relay 7 Relay 6 Relay 5 Relay 4 Relay 3 Relay 2 Input Event Relay 1 DAI Response Slate Tone 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.
5.4.1 Command Matrix Settings The following list defines the sets of numbers and the actions they represent. Use these values to program the command matrix. Value 0 1 2 3 4 5 6 7 + Value 0 1 2 3 4 5 + Value 0 1 ...
5.5 System Profile Settings The following commands are used in the System Profile listing at the end of this section. 5.5.1 Command Set A command set defines how the DAI-2 will respond to DTMF tones during operation. The DAI-2 stores four command sets in memory but only one is active at a time. The active command set is programmed at address 358. Value 0 1 2 3 + 5.5.
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. Value 0 1 ...
5.5.5 Telephone Numbers The DAI-2 is capable of dialing up to four telephone numbers of 15 digits each when an alarm condition is detected. These numbers are programmed from address 256 through 315. The DAI-2 will dial the numbers, in rotation, up to four times each or until the alarm condition is cleared by user input. 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.
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 Ring Number to Answer 0-1 2 ...
5.5.8 DTMF Hold Time The DAI-2 is controlled by the DTMF tones produced by a TouchTone® type telephone. It is normal for audio passing through the system to occasionally contain sound at the same frequencies as these tones. 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. DTMF hold time is programmed at address 349. Value 0 1 2 3 4 5 6 7 8 9 5.5.
5.5.10 Slate Tone The DAI-2 can produce an audible slate tone that can be used to signal a break between spots when using the Soundbite Recorder. To use the slate tone, it must be programmed onto one of the keys in the command matrix. (In the case of the Soundbite Recorder it is pre-programmed in the matrix to key 8.) This tone is adjustable in length by programming at address 353. Value 0 1 ...
5.6 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.
032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 (Factory Programming--Unused key) 2 Key, Relay 1 2 Key, Relay 2 2 Key, Relay 3 2 Key, Relay 4 2 Key, Relay 5 2 Key, Relay 6 2 Key, Relay 7 2 Key, Relay 8 2 Key, Audio 2 Key, Slate tone 2 Key, Alarm call 2 Key, Read Status 1 2 Key, Read Status 2 2 Key, Reserved 2 Key, Reserved 2 Key, Reserved 2 2 2 2 2 2 2 2 1 0 0 0 0 0 0 0 _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ 048 049 050 051 052 053
080 081 082 083 084 085 086 087 088 089 090 091 092 093 094 095 (Factory Programming--Unused key) 5 Key, Relay 1 5 Key, Relay 2 5 Key, Relay 3 5 Key, Relay 4 5 Key, Relay 5 5 Key, Relay 6 5 Key, Relay 7 5 Key, Relay 8 5 Key, Audio 5 Key, Slate tone 5 Key, Alarm call 5 Key, Read Status 1 5 Key, Read Status 2 5 Key, Reserved 5 Key, Reserved 5 Key, Reserved 2 2 2 2 2 2 2 2 1 0 0 0 0 0 0 0 _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ 096 097 098 099 100 101
128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 (Factory Programming--Unused key) 8 Key, Relay 1 8 Key, Relay 2 8 Key, Relay 3 8 Key, Relay 4 8 Key, Relay 5 8 Key, Relay 6 8 Key, Relay 7 8 Key, Relay 8 8 Key, Audio 8 Key, Slate tone 8 Key, Alarm call 8 Key, Read Status 1 8 Key, Read Status 2 8 Key, Reserved 8 Key, Reserved 8 Key, Reserved 2 2 2 2 2 2 2 2 1 0 0 0 0 0 0 0 _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ 144 145 146 147 148 149
176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 (Factory Programming--Trigger Alarm System) Logic Level In 1, Relay 1 Logic Level In 1, Relay 2 Logic Level In 1, Relay 3 Logic Level In 1, Relay 4 Logic Level In 1, Relay 5 Logic Level In 1, Relay 6 Logic Level In 1, Relay 7 Logic Level In 1, Relay 8 Logic Level In 1, Audio Logic Level In 1, Slate tone Logic Level In 1, Alarm call Logic Level In 1, Read Status 1 Logic Level In 1, Read Status 2 Logic Level In 1, Reserved Logic Level In 1, Rese
224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 (Factory Programming--Unused key) Logic Level In 4, Relay 1 Logic Level In 4, Relay 2 Logic Level In 4, Relay 3 Logic Level In 4, Relay 4 Logic Level In 4, Relay 5 Logic Level In 4, Relay 6 Logic Level In 4, Relay 7 Logic Level In 4, Relay 8 Logic Level In 4, Audio Logic Level In 4, Slate tone Logic Level In 4, Alarm call Logic Level In 4, Read Status 1 Logic Level In 4, Read Status 2 Logic Level In 4, Reserved Logic Level In 4, Reserved Logic
Address Description Paragraph Factory Setting User Setting 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 A Telephone Number; Digit 1 A Telephone Number; Digit 2 A Telephone Number; Digit 3 A Telephone Number; Digit 4 A Telephone Number; Digit 5 A Telephone Number; Digit 6 A Telephone Number; Digit 7 A Telephone Number; Digit 8 A Telephone Number; Digit 9 A Telephone Number; Digit 10 A Telephone Number; Digit 11 A Telephone Number; Digit 12 A Telephone Number; Digit 13 A Telephone Number;
Address Description Paragraph Factory Setting User Setting 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 D Telephone Number; Digit 1 D Telephone Number; Digit 2 D Telephone Number; Digit 3 D Telephone Number; Digit 4 D Telephone Number; Digit 5 D Telephone Number; Digit 6 D Telephone Number; Digit 7 D Telephone Number; Digit 8 D Telephone Number; Digit 9 D Telephone Number; Digit 10 D Telephone Number; Digit 11 D Telephone Number; Digit 12 D Telephone Number; Digit 13 D Telephone Number;
Address Description Paragraph Factory Setting User Setting 347 348 349 Ring Number (to answer) Ring Sensitivity Minimum DTMF Length 7 7 8 2 5 2 _____ _____ _____ 350 Incorrect Security Code Lockout Time 3 3 _____ 351 352 353 Identification Tones Tone Speed Slate Tone Length 9 9 10 3 3 4 _____ _____ _____ 354 355 356 Cue Tone Enable Alarm Enable Delay Enable 10 5 11 1 0 1 _____ _____ _____ 357 Safeguard Timer 2 5 _____ 358 359 360 361 Active Command Set Security Code Timer Puls
0 0 0 Reserved Status 2 Reserved Status 1 Alarm Call Reserved 239 0 0 0 255 254 0 0 0 0 0 0 0 0 238 253 252 251 250 0 0 0 0 0 249 248 247 0 Slate Tone Audio 1 2 2 246 245 0 Relay 8 Relay 6 Relay 5 Relay 4 Relay 2 Relay 7 2 2 0 0 3 244 243 242 241 0 2 2 2 2 240 Power Up 0 223 222 0 237 236 235 234 233 232 231 207 0 0 0 0 0 0 0 206 221 220 219 218 0 0 0 0 0 1 2 0 191 190 205 204 203 202 217 216 215 2 230 229 2
0 2 0 Reserved Status 2 Reserved Status 1 Alarm Call Reserved 239 0 0 0 255 254 0 0 0 0 0 0 0 0 238 253 252 251 250 0 0 0 0 0 249 248 247 0 Slate Tone Audio 1 2 2 246 245 0 Relay 8 Relay 6 Relay 5 Relay 4 Relay 2 Relay 7 2 2 0 0 0 244 243 242 241 0 2 2 2 2 240 Power Up 0 223 222 0 237 236 235 234 233 232 231 207 0 0 0 0 0 0 0 206 221 220 219 218 0 0 0 0 0 1 2 0 191 190 205 204 203 202 217 216 215 2 230 229 2
Section 6 — Troubleshooting and Repair 6.1 Common Problems and Possible Solutions Problem: The DAI-2 does not power up. Solutions: Check for shorts on the flat (ribbon) cable. There should be 12VDC on pin 5. Check the wall-plug power supply for 12 VDC. Problem: I reprogrammed the command matrix but my changes do not seem to have any effect. Solutions: Use the programming read mode to make sure that you have made the changes that you think you have.
6.2 Factory Service Policy These policies are effective August 1999 and are subject to change without prior notice. 6.2.1 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.
6.2.4 Warranty Service There is no charge for repair service on items covered under warranty. You are responsible for shipping charges to return damaged equipment to us for repair. Damage due to negligence, lightning or other acts of nature are not covered under warranty. 6.2.5 Service Rates For service not covered under warranty we have a flat rate repair fee. Flat rate repairs cover only components that fail electrically. Mechanical damage will be assessed on a per repair basis.
6.2.6 Instructions for Factory Service Please include a note with any specific information available about the equipment failure as an aid to our technicians. Pack equipment carefully to avoid further damage in shipping. We are not responsible for damage during transport. When returning a system with multiple components, we strongly suggest that you return the entire system. We will repair the parts that are returned but lightning is rarely selective enough to damage only a single part of a system.
6.3.1 Circuit Description The heart of the DAI-2 is a Motorola MC68HC711 microcontroller. It contains the CPU, program ROM and RAM, timers, parallel I/O and an A-D converter. The CD22202 (U7) DTMF decoder, the ULN2803 (U8) octal open-collector driver, the MAX7624 multiplying converter, and the status inputs connect directly to it. The microprocessor operates off a 3.579 MHz crystal oscillator and a portion of this signal is used to drive the DTMF decoder as well. Figure 6.
Section 7 — Specifications 7.1 DAI-2 Dial-up Audio Interface Power 12 Volts AC, 0.
