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Vega DSP-223 Technical Manual

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Model DSP-223
Tone Remote Panel
Operating Software 2.6
Technical Manual
March 2005
P.N. 803274 Rev D

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Summary of Contents for Vega DSP-223

  • Page 1 Model DSP-223 Tone Remote Panel Operating Software 2.6 Technical Manual March 2005 P.N. 803274 Rev D...

  • Page 2: Table Of Contents

    1 General ..................1 1.1 DSP-223 Accessories..................1 2 Installation ................2 2.1 DSP-223 Power Supply .................. 2 2.2 DSP-223 to Console Line Connection ............2 2.3 DSP-223 to Radio Connection................ 2 2.3.1 TX Audio Connection................... 2 2.3.2 RX Audio Connection .................. 3 2.3.3 PTT Connection...................
  • Page 3 4.2.2.10 Set Gains Button .................. 13 4.2.2.11 Morse Code Station Identifier Setup ............. 14 4.2.2.12 Save and Load Buttons ................ 14 4.2.2.13 Send and Receive Configuration from DSP-223 ........14 4.2.2.14 Radio TX Audio Filters................15 4.2.2.15 DSP-223 Audio Block Diagram............. 16 4.2.2.16 DSP-223 Frequency Response ............

  • Page 5: General

    All audio inputs and outputs are transient protected. The DSP-223 line transformers are not designed to operate on lines carrying direct current. If a DC voltage is on the line, isolate with external capacitors. If the line termination must conduct direct current, install a 600:600-ohm transformer designed for the current involved.

  • Page 6: Installation

    Set J19 to “B” position for 2-wire operation. 2.3 DSP-223 to Radio Connection 2.3.1 TX Audio Connection The DSP-223 has a number of options when connecting it to the radio. Set the jumpers according to the method outlined in your radio’s owner manual.

  • Page 7: Rx Audio Connection

    If a high-impedance point in the receiver is used, shielded cable is recommended. Note: When the speaker output is used, the radio volume control will affect the audio levels of the DSP-223. 2.3.3 PTT Connection Connect the radio PTT circuit to the PTT relay contact terminals. Connections on the DB25 or the 6 pin connectors may be used.

  • Page 8: Radio Frequency Control

    The Telex Handset (P/N 249248) may be connected to the DSP-223 to monitor receive and transmit audio. When the handset PTT switch is pressed, the DSP-223 will be key up the radio on the existing frequency and the handset microphone audio will be transmitted.

  • Page 9: Level Settings

    Table Usage: Converter (ADC). 1) Place a known signal level into the RX terminals of the Vega device being setup. 2) Determine the maximum signal level that the device will see. This table supports +10 and 0 dBm the row of the injected...

  • Page 10: Radio Tx Level Adjust Procedure

    3.2 Radio TX Level Adjust Procedure Due to the large range of input requirements for the radios that can be connected to the DSP-223, there is not a prescribed way of setting the Radio TX levels. Radio TX test points (TP-5 & TP-6) on the front panel of the DSP-223 provide a location to measure the actual value being placed onto the radio TX inputs.

  • Page 11: Programming And Operation

    Tone Remote 4 Programming and Operation All programming for the DSP-223 is through an RS-232C serial port located on the front panel of the unit. Programming kit (P/N DSP223PRG) may be purchased separately from the DSP-223 and installed on a Windows 95 or newer computer.

  • Page 12: Dsp-223 Configuration

    40ms after the first function tone is sent so that a no tone can be decoded. If the 2175 hold tone, or other audio is present, the DSP-223 will attempt to decode this as the second half of the dual function tone.

  • Page 13: Monitor Relay Options

    Hold tone, it will remain keyed up allowing one radio to serve as the link to another DSP-223. PTT Tone Only causes the DSP-223 to not respond to a function tone and key up on detection of a valid Hold tone. This will eliminate all options that are function tone based, but allows the DSP-223 to be used in a most basic manner.

  • Page 14: Individual Function Tone Setup

    4.2.2.8 Individual Function Tone Setup The middle grid area of the main screen menu is used to set the actions of the DSP-223 when a particular function tone is received. The left most column is the function tone number. If the Function Tone Mode is set to single function tone, tones F1-F16 may be programmed.

  • Page 15: Digital Output

    Tone Remote 4.2.2.8.5 Digital Output Each function tone may be assigned a digital output. Valid entries are 0 – 64 that control the outputs labeled DIG0-DIG5. This is a binary output corresponding to the value entered. The table below shows the values and the resulting DIG0-DIG5 outputs.

  • Page 16: Dig4 Setup Button

    F2 row. Selecting F4 would set the CTCSS tone in the F4 row. When PTT is pressed, F1 is the default frequency and the F4 CTCSS tone is sent. Some consoles, such as the Vega C-1610 and 6124 have a paired mode that makes this operation very simple.

  • Page 17: Dig5 Setup Button

    4.2.2.9.1 Voter/Ring Down Tone Generation This grouping allows the DSP-223 to generate a user-defined tone on the Line TX pair in the event of an active logic signal on Pin 2 of the line connector or Pin-23 (DIG5) of the DB25 connector. Enable Tone on Dig5 Input must be checked to enable the feature.

  • Page 18: Morse Code Station Identifier Setup

    The Send to 223 and Recv from 223 buttons are used to transfer configuration data between the DSP- 223 and the PC. The serial port of the DSP-223 and the PC must be connected using the provided serial cable.

  • Page 19: Radio Tx Audio Filters

    Tone Remote 4.2.2.14 Radio TX Audio Filters The TX Filters button sets the options for controlling the radio TX audio. 4.2.2.14.1 AGC The AGC checkbox adds an Automatic Gain Control or audio compression to the radio TX audio. AGC will help to increase the level of low audio, and decrease the level of loud audio, resulting in a more consistent level being transmitted.

  • Page 20: Dsp-223 Audio Block Diagram

    Vega DSP-223 4.2.2.15 DSP-223 Audio Block Diagram See the previous programming sections on inserting/removing the Pre-Emphasis, AGC, 3.5kHz Low Pass Filter, and the 400ms Delay options. Line TX Radio RX Audio Audio Notch Filter Handset Speaker CTCSS Audio CTCSS Generator...

  • Page 21: Figure 15 Tx Frequency Response With 3.5Khz Low Pass Filter

    Tone Remote Figure 15 Tx Frequency Response With 3.5KHz Low Pass Filter Figure 16 Tx Frequency Response With 3.5KHz Filter and Pre-Emphasis...

  • Page 22: Dtmf Responder Functions

    Vega DSP-223 4.3 DTMF Responder Functions A number of DTMF sequences may be sent to the DSP-223 from the console that may be used to affect the performance of the unit or initiate a test function. The standard activation sequence that precedes each command is DTMF .

  • Page 23: Theory Of Operation

    Tone Remote 5 Theory of Operation The DSP-223 is a Digital Signal Processor (DSP) based product. Many of the signals that once could be probed on older products, are handled within the DSP itself. This includes DTMF decoders, notch filters, tone decoders, and all of the audio summing.

  • Page 24: Loading The Dsp-223 Operational Software

    Alternately it can be run from the Start->Run menu as well. The dialog box contains a few options that can be used. 5) The first step is to put the DSP-223 into programming mode. This is done by first removing power from the unit.

  • Page 25: Pin Out And Jumper Settings Quick Reference Table

    Tone Remote 8 Pin out and Jumper Settings Quick Reference Table PIN ON RADIO CONNECTOR DB25 Pin Signal Color = PTT N.C. Brown = PTT COM = MON N.O. Orange = F1 N.C. Pink = F1 COM Yellow = F2 N.O. Green = GROUND Lt.

  • Page 26: Schematics And Parts Lists

    Vega DSP-223 9 Schematics and Parts Lists 9.1 PCB P/N 750561 Revisions A to E...

  • Page 27: Pcb P/N 750561 Revision F

    This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY:SBC APPD BY:DEE PROD:___...
  • Page 28 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY:SBC APPD BY:DEE PROD:___...
  • Page 29 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY:SBC APPD BY:DEE PROD:___...
  • Page 30 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY:SBC APPD BY:DEE PROD:___...
  • Page 32 SCLK 0.47UF LRCK AINR MCLK RADIORX +10V CS5330A +10V 1800PF BYPASS CAPS FOR: +10V TL084 LINETX 2N3904 100K RADLINE TITLE VEGA 0.1UF 0.1UF 3.3UF VR2.5 DATE TL084 TL084 01/15/2001 1800PF DAC1 SDATA DSP 223 AOUTL DEM/SCLK LRCK AOUTR RADIOTX 100K...
  • Page 33 R142 2N3904 F1-COM +12V Serial Interface 0.1UF F2-NC D[0:23] 0.1UF F2-NO F2-COM 0.1UF RESET OUT1 TL16C550C RCLK PLCC44 OUT2 TITLE VEGA SOUT INTRPT T1IN T1OUT RXRDY T2IN T2OUT DATE BAUDOUT FL0B R1OUT R1IN FL1B R2OUT R2IN 01/15/2001 LT1181A DSP 223...
  • Page 34 Tone Remote 9.2 PCB P/N 750561 Revision F...
  • Page 35 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 36 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 37 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 38 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 40 0.47UF LRCK AINR MCLK RADIORX +10V CS5330A +10V 1800PF BYPASS CAPS FOR: +10V 8.06K TL084 LINETX 2N3904 100K RADLINE TITLE VEGA 3.3UF 0.1UF VR2.5 DATE TL084 TL084 01/15/2001 1800PF DAC1 DSP 223 SDATA AOUTL DEM/SCLK 8.06K LRCK AOUTR SCHEMATIC RADIOTX...
  • Page 41 R142 2N3904 F1-COM +12V Serial Interface 0.1UF 0.1UF F2-NC D[0:23] F2-NO F2-COM 0.1UF RESET OUT1 TL16C550C RCLK PLCC44 OUT2 TITLE VEGA SOUT INTRPT T1IN T1OUT RXRDY T2IN T2OUT DATE BAUDOUT FL0B R1OUT R1IN FL1B R2OUT R2IN 01/15/2001 DSP 223 LT1181A...

  • Page 42: Pcb P/N 750561 Revision G

    Vega DSP-223 9.3 PCB P/N 750561 Revision G...
  • Page 43 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHK: APPD: PROD:...
  • Page 44 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 45 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 46 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 48 SCLK LRCK AINR MCLK RADIORX 220PF +10V CS5330A +10V BYPASS CAPS FOR: +10V 8.06K TL084 LINETX 100K 2N3904 RADLINE TITLE VEGA 3.3UF 0.1UF VR2.5 DATE TL084 TL084 01/15/2001 220PF DAC1 DSP 223 SDATA RADIOTX AOUTL DEM/SCLK 8.06K LRCK AOUTR SCHEMATIC...
  • Page 49 R142 2N3904 F1-COM +12V Serial Interface 0.1UF F2-NC D[0:23] 0.1UF F2-NO F2-COM 0.1UF RESET OUT1 TL16C550C RCLK PLCC44 OUT2 TITLE VEGA SOUT INTRPT T1IN T1OUT RXRDY T2IN T2OUT DATE BAUDOUT FL0B R1OUT R1IN FL1B R2OUT R2IN 01/15/2001 DSP 223 LT1181A...

  • Page 50: Pcb P/N 750561 Revision H

    Tone Remote 9.4 PCB P/N 750561 Revision H...
  • Page 51 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHK: APPD: PROD:...
  • Page 52 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 53 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 54 This drawing, written description or specification Is PART NO: Telex Communications INC. a proprietary product of TELEX, Lincoln, NE, and 879457 shall not be released, disclosed, nor duplicated without the written permission of TELEX. Lincoln, Nebraska USA APPROVALS: DR BY: SBC CHKD BY: APPD BY: PROD:...
  • Page 56 SCLK LRCK AINR MCLK RADIORX 220PF +10V CS5330A +10V BYPASS CAPS FOR: +10V 8.06K TL084 LINETX 100K 2N3904 RADLINE TITLE VEGA 3.3UF 0.1UF VR2.5 DATE TL084 TL084 01/15/2001 220PF DAC1 DSP 223 SDATA RADIOTX AOUTL DEM/SCLK 8.06K LRCK AOUTR SCHEMATIC...
  • Page 57 R142 2N3904 F1-COM +12V Serial Interface 0.1UF F2-NC D[0:23] 0.1UF F2-NO F2-COM 0.1UF RESET OUT1 TL16C550C RCLK PLCC44 OUT2 TITLE VEGA SOUT INTRPT T1IN T1OUT RXRDY T2IN T2OUT DATE BAUDOUT FL0B R1OUT R1IN FL1B R2OUT R2IN 01/15/2001 DSP 223 LT1181A...

  • Page 58: Warranty, Service, Repair, And Comments

    Warranty (Limited) All Telex Communications, Inc. manufactured Vega Signaling products are guaranteed against malfunction due to defects in materials and workmanship for three years, beginning at the date of original purchase. If such a malfunction occurs, the product will be repaired or replaced (at our option) without charge during the three-year period, if delivered to the Telex factory.
  • Page 59 Tone Remote 11 DSP-223 Specifications MON timer: 10ms to 65seconds, adjustable Operating Temperature Range: 0 to 70°C for full specifications PTT Detect Frequencies: Programmable 2100, 2155, 2175, 2300, 2325, 2600, 2800 and Power Requirements: +12 to +16 Vdc, semi- 2970Hz regulated, 500ma.

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