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Vega C-6124 Technical Manual

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Model C-6124
Radio Control Console
Technical Manual
098-0371J
12/10/01

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Summary of Contents for Vega C-6124

  • Page 1 Model C-6124 Radio Control Console Technical Manual 098-0371J 12/10/01...
  • Page 2 5. Programming the C-6124 system 6. TLM Description 7. PLM Description 8. UIM (User Interface Module) Description 9. Sample setup procedure 10. Warranty, Service, Repair, and Comments 11. Specifications NOTE: The C-6124 uses microphone processor firmware that is fully year 2000 compliant...

  • Page 3: Table Of Contents

    4.1 Touchscreen 4.2 Tone Lines (TLM) 4.3 Dial-up and Phone Lines (DLM/PLM) 4.4 Crosspatch Operation 5. Programming the C-6124 system 5.1 Programming at the System Level - Parameter Explanation 5.1.1 Memory Dial Name Editing 5.1.2 Memory Dial Number Editing 5.1.3 Simulcast Group Name Editing 5.1.4 Crosspatch Group Name Editing...
  • Page 4 Remote Control Console 6.3.3.2 TX Side Settings 6.3.3.3 Transmit Monitor 6.3.4 Two Wire Mode 6.3.5 Recorder Output 6.3.6 Squelch Control 6.4 Level Adjustments 6.4.1 Transmit Side Adjustments 6.4.1.1 Microphone Audio 6.4.1.2 Crosspatch Transmit Audio 6.4.1.3 Transmit Output Drive 6.4.1.4 Tone Level 6.4.1.5 TX Notch Filter 6.4.1.6 DTMF Output Level 6.4.2 Receive Side Adjustments...
  • Page 5 Vega’s C- 6124 8.2.4 Auxiliary Inputs 8.2.4.1 Auxiliary Voice Path 8.2.4.2 Auxiliary Audio Path 8.2.5 Recorder Outputs 8.2.5.1 Select Recorder 8.2.5.2 Unselect Recorder 8.2.5.3 Crosspatch Recorder 8.2.6 Auxiliary Speaker Output 8.2.7 Handset/Headset connector 8.2.8 Desk microphone/Gooseneck connector 8.3 Other Adjustments 8.3.1 VU Meter...

  • Page 7: Introduction

    The C-6124 sports a backlit LCD touchscreen and a unique enclosure that allows the operator to tilt the console to the operator's desired viewing angle. This feature allows a more flexible dispatch environment in which the console may be installed.

  • Page 8: Hardware Overview

    Remote Control Console 2. Hardware Overview The C-6124 is a multi-line, multi-mode console designed specifically for growth in system requirements. The console is based on a modular design utilizing multi-processor architecture for maximum flexibility. The system allows for customization through software and expandability through common hardware.
  • Page 9 A self-contained hybrid module houses the necessary circuitry to provide TX/RX audio isolation, off hook enable and ring detect. The DLM is the dial-up remote card intended to control a remote radio using Vega's Dial-up tone control format (compatible with Vega Models C-550/RP-250 or RP-251).
  • Page 10 Remote Control Console 3. Controls and Indicators Front Panel For a description of these controls and indicators please see the following pages. A self-adhesive label is supplied with each SBM. You can place it above the Select switch pushbuttons. Trim to fit and print the appropriate information on the strip of paper that slides into the clear plastic holder.

  • Page 11: Controls And Indicators

    Vega’s C- 6124 Common Controls and Indicators Select Volume Control: Adjusts the speaker level of the Selected audio. A minimum volume level can be preset on the speaker card so that the console operator can not turn the volume to zero.

  • Page 12: Touchscreen Examples

    Remote Control Console Touchscreen Examples After turning on the console you are greeted by the initial display. Selecting a line will change the "NO SELECTION" at the bottom of the screen to a description of the line you Selected, for example "MT WILSON F2." RX ALL TX ALL GRPSEL...
  • Page 13 Vega’s C- 6124 If you wish to dial out, select "DIAL" from the opening screen and the following screen allows you to manually enter a number to be dialed. The screen will then prompt you to Select a line over which the DTMF will be transmitted.
  • Page 14 Remote Control Console MEMORY DIALS PREVIOUS SQUAD 57 POLICE CHIEF AUTO CLUB << SEL CH: GROUP SELECT Figure 3.3e Touch “PREVIOUS” and it will take you back to the first screen (Figure 3.3c)
  • Page 15 Vega’s C- 6124 Tone Line Module (TLM) Line Select Pushbutton: When one of the line Select pushbuttons is momentarily pressed, that line is Selected and the previously Selected line is released unless either the Xpatch Select pushbutton or Group Select touchscreen pushbutton is held down.
  • Page 16 Remote Control Console Release Pushbutton Indicators: The red light indicates that the line is crossmuted or is being TX Blocked. A constant green light indicates that a parallel console is transmitting. Instant PTT Pushbutton: Located directly below the release pushbutton, when pressed and held, will cause the line card to generate the required transmit tone sequence.
  • Page 17 Vega’s C- 6124 Phone Line Module (PLM) Line Select Pushbutton: A PLM will go off-hook when the select button is pressed. When a PLM line Select pushbutton is momentarily pressed, that line is Selected and the previously Selected line is put on hold.
  • Page 18 Remote Control Console...

  • Page 19: Dial-Up Line Module (Dlm)

    Vega’s C- 6124 Dial-up Line Module (DLM) Line Select Pushbutton: Line Select can only occur if a telephone number is Selected from either the preset number menu, entered manually or if the line is on hold. When a DLM line Select pushbutton is momentarily pressed, that line is Selected and the previously Selected line is put on hold.
  • Page 20 Remote Control Console Release Pushbutton: Directly below the Unselect pushbutton is the release pushbutton. Pressing this pushbutton for two seconds will send a double monitor burst to the radio control panel (RP250 or RP251) terminate the call by disconnecting the line from the central office. The red light on the pushbutton will illuminate while the pushbutton is pressed.

  • Page 21: Functional Description

    Functional Description Touchscreen The following pages describe the various touchscreen menus and their functions available on the C-6124. Upon turning the power on the console will boot-up in the main menu and you are greeted by the initial display. (Figure 4.1).
  • Page 22 Remote Control Console XPATCH GROUP SELECT SQUAD 56 FIRE CAPTAIN MAINTENANCE << SEL CH: MT. WILSON Figure 4.2 Xpatch Group Select RX ALL (Receive All): Push to monitor all lines that are not in the Select mode Any line that is in the Select mode will automatically become part of the Unselect group when it is taken out of Select mode.
  • Page 23 Vega’s C- 6124 SIMUL GROUP: The group select key allows the user to Select multiple lines for simultaneous transmissions. If dial- up lines are to be included in the group select, they must first be dialed-up and on hold. To engage group select, press SIMUL GROUP on the display, this takes you to another screen (Figure 4.3). To initiate one of the preprogrammed groups, simply press the corresponding number on the screen.
  • Page 24 Remote Control Console DIAL: This function is the doorway into the DTMF dialing screen. When touched, the display changes to the manual dial keypad screen (Figure 4.4). Here the user can generate DTMF over the air on tone lines or manually dial a phone number for the DLM or PLM lines.
  • Page 25 Vega’s C- 6124 MEMORY DIALS MORE POLICE CHIEF MAYORS OFFICE COMMISSIONER << SEL CH: GROUP SELECT Figure 4.5 Speed-Dial Menu MEMORY DIALS PREVIOUS SWAT TEAM GAS COMPANY ELECTRICAL DEPT << SEL CH: GROUP SELECT Figure 4.6 Speed-Dial Menu Pressing “<<” will take you back to the manual dial screen. Pressing “PREVIOUS” will take you back to the first memory dial screen 01-08.

  • Page 26: Tone Lines (Tlm)

    ALERT: When touched and held, will enable the PTT on the Selected line or lines and transmit a 1000Hz alert tone, until released. If the Selected cards are not in the transmit mode when the Alert button is pressed the C-6124 will key...
  • Page 27 Vega’s C- 6124 Instant PTT: To generate a PTT tone sequence whether the line is Selected or not, simply press the desired line’s instant PTT pushbutton. Phone Line and Dial-up Line Modules (PLM/DLM) Dialing from Preset Memory: Bring up the speed dial menu by pressing DIAL on the main menu. Scroll through the preset telephone numbers by touching MEMORY DIAL and MORE or PREVIOUS at the top of the screen.

  • Page 28: Crosspatch Operation

    Remote Control Console Answering a Ringing Line: When one of the dial-up lines ring, the operator will hear the ring tones in the speaker and the call indicator will flash. To answer an incoming call, momentarily press the line Select pushbutton on the ringing line with the handset off hook.

  • Page 29: Programming The C-6124 System

    4) Replace the two screws at the upper left and right hand sides of the housing. 5) Replace microphone and plug-in terminal blocks. 6) Flip the C-6124 power switch to the ON position. The C-6124 will power up into the Operational mode.
  • Page 30 EDIT SIMUL GROUP NAMES: The C-6124 has a group select function where more than one line card may be in the Select mode at one time. Eight preprogrammed groups may be stored in the C-6124 memory. This button allows each entry’s 12 character alphanumeric label to be entered.
  • Page 31 This allows each card to have a group of other lines which are not allowed to be in the Select mode with it. For example, if line 4 TX Blocks lines 6 and 7 the C-6124 will not allow line 4 to be in a simul-group with either 6 and 7.

  • Page 32: Memory Dial Name Editing

    02 ---------------- Pressing this button accessess the NUMERIC KEYPAD for dial number programming. << --------------- Pressing this button returns the C-6124 to the MEMORY DIAL SELECTION screen ALPHANUMERIC KEYPAD screen button definition: When 01 is pressed on the NAME/NUMBER screen the ALPHANUMERIC KEYPAD will appear. The assigned name will appear at the top of the screen.
  • Page 33 Pressing this button will clear the entry without saving. RECALL LAST Pressing this button will recall the last saved entry. SAVE Pressing this button will save the entry and return the C-6124 to the NAME/NUMBER screen. << Pressing this button returns the C-6124 to the NAME/NUMBER screen.

  • Page 34: Simulcast Group Name Editing

    GROUP NAME ASSIGNMENT screen. From this screen select the number of the group that is to be programmed. Unprogrammed names show up as blocks. Note: A simulcast group programmed with the desired lines (described later) does not need a programmed name to fucntion. Pressing the << button will return the C-6124 to MENU 1.
  • Page 35 CROSSPATCH NAME ASSIGNMENT The C-6124 allows eight preprogrammed crosspatch group names. Each of these groups may have up to a 12 character alphanumeric name to identify it. To program the names press 03 on the MENU 1 screen. This will bring up the CROSSPATCH NAME ASSIGNMENT screen.

  • Page 36: Simulcast Group Assignments

    When programming is complete press the << button to return to MENU 2. It is suggested that all TX Blocks be setup before the simulcast groups are set up. When a TX Block is set up the C-6124 will edit simulcast groups to drop out violations.

  • Page 37: Crosspatch Group Assignment

    When programming is complete press the << button to return to MENU 2. It is suggested that all TX Blocks be setup before the crosspatch groups are set up. When a TX Block is set up the C-6124 will edit crosspatch groups to drop out violations.

  • Page 38: Parallel Crosspatch Notification And Mute Duration

    << OTHER PARAMETERS programming screen PARALLEL CROSSPATCH NOTIFICATION: The C-6124 has an option that uses DTMF characters “A” and “B” to communicate to parallel consoles that a crosspatch has been set up. When this option is enabled DTMF “A plus *”characters will be sent out on the lines that are placed in a crosspatch.

  • Page 39: Function Tone Parameters

    SYSTEM PROGRAMMING MENU 3 FUNCTION TONE PARAMETERS The C-6124 allows the user to modifiy the parameters of the function tones in two ways: Function Tone Range – The user may decide between offering only four function tones or offering a full complement of 12 function tones.

  • Page 40: Rx Block

    Remote Control Console 5.1.9 Programming at the system level à à RX BLOCK SYSTEM PROGRAMMING LINE SYSTEM PROGRAMMING LINE OPTION MENU 1 OPTION MENU 2 EDIT MEMORY DIALS SIMUL GROUP SELECT EDIT SIMUL GROUP NAMES CROSSPATCH GROUP SELECT EDIT CROSSPATCH GROUP NAMES OTHER PARAMETERS OPTION MENU 2 OPTION MENU 3...

  • Page 41: Tx Block

    Vega’s C- 6124 5.1.10 Programming at the system level à à TX BLOCK LINE SYSTEM PROGRAMMING SYSTEM PROGRAMMING LINE OPTION MENU 1 OPTION MENU 2 EDIT MEMORY DIALS SIMUL GROUP SELECT EDIT SIMUL GROUP NAMES CROSSPATCH GROUP SELECT EDIT CROSSPATCH GROUP NAMES...
  • Page 42 Remote Control Console Programming the Tone Line Module à à PARAMETER EXPLANATION LINE PROGRAMMING SYSTEM SELECTED LINE INFORMATION CARD ID NUMBER 05 MT. WILSON DEDICATED SELCALL 1462 AUTO RESET CROSSMUTE ENCODE OFF DECODE OFF LAM FLASH 7 SEC << PROGRAMMING SELECTION LINE INFORMATION Screen (TLM) The above screen representation describes the parameters that may be programmed on the Tone Line Module (TLM).
  • Page 43 Vega’s C- 6124 CROSSMUTE ENCODE/DECODE: The C-6124 has an audio Crossmute feature. This feature sends a DTMF digit before and after each transmission. Parallel consoles decode this DTMF and remove that line’s audio from their speaker outputs. This feature allows console operators in the same room to operate without a feedback loop occurring.

  • Page 44: Accessing The Programming Screens

    Remote Control Console 5.2.1 Programming the Tone Line Module à à ACCESSING THE PROGRAMMING SCREENS LINE SYSTEM PROGRAMMING LINE PROGRAMMING SYSTEM OPTION MENU 1 EDIT MEMORY DIALS EDIT SIMUL GROUP NAMES SELECT LINE TO ENTER LINE PROGRAMMING EDIT XPATCH GROUP NAMES OPTION MENU 2 1) Once in programming mode, Press the LINE...

  • Page 45: Card Id Number

    PTT function. The * and # are not valid characters and the C-6124 will not allow them to be entered as ID numbers. The CLEAR button will clear the entry and the RECALL LAST button will call up the last ID number programmed.

  • Page 46: Select Call Programming

    Remote Control Console 5.2.4 Programming the Tone Line Module à à SELECT CALL Programming SELCALL ADDRESS LINE PROGRAMMING SYSTEM 1 2 3 4 CLEAR SET CARD ID NUMBER EDIT LINE NAMES RECALL LAST SELCALL ADDRESS SAVE MORE OPTION << << MAIN SCREEN AUTO RESET MODE...

  • Page 47: Lam Flash Period Programming

    Vega’s C- 6124 5.2.5 Programming the Tone Line Module à à LAM FLASH PERIOD Programming LINE PROGRAMMING SYSTEM LINE PROGRAMMING SYSTEM SET CARD ID NUMBER LAM FLASH PERIOD EDIT LINE NAMES FUNCTION TONE BLOCK OUT SELCALL ADDRESS CROSSMUTE OPTION MORE OPTION PREVIOUS OPTION <<...

  • Page 48: Function Tone Block Programming

    Remote Control Console 5.2.6 Programming the Tone Line Module à à FUNCTION TONE BLOCK Programming LINE PROGRAMMING SYSTEM LINE PROGRAMMING SYSTEM SET CARD ID NUMBER LAM FLASH PERIOD EDIT LINE NAMES FUNCTION TONE BLOCK OUT SELCALL ADDRESS CROSSMUTE OPTION MORE OPTION PREVIOUS OPTION <<...

  • Page 49: Crossmute Programming

    Unselect audio bus. This action takes that audio off the console speaker. The C-6124 offers two methods of crossmuting lines. The first is a hardwire option that is available from the modular connector at the back of each TLM. The second method is through use of the “C” and “D” DTMF characters. This second method is enabled and disabled by following the screen progression shown above.
  • Page 50 Remote Control Console 5.3 Programming the Phone Line Module à à PARAMETER EXPLANATION LINE PROGRAMMING SYSTEM SELECTED LINE INFORMATION CARD ID NUMBER 06 NO SELECTION TELEPHONE SELCALL - - - - CROSSMUTE ENCODE OFF DECODE OFF << LINE INFORMATION Screen (PLM) The above screen representation describes the parameters that may be programmed on the Phone Line Module (PLM).

  • Page 51: Accessing The Programming Screens

    Vega’s C- 6124 5.3.1 Programming the Phone Line Module à à ACCESSING THE PROGRAMMING SCREENS SYSTEM PROGRAMMING LINE PROGRAMMING SYSTEM LINE EDIT MEMORY DIALS EDIT SIMUL GROUP NAMES SELECT LINE TO ENTER LINE PROGRAMMING EDIT XPATCH GROUP NAMES MORE OPTIONS...

  • Page 52: Card Id Number

    ID shown. From this screen type in any two digit number between, and including, 00 and 24. The * and # are not valid characters and the C-6124 will not allow them to be entered as ID numbers.

  • Page 53: Tlm Description

    Vega’s C- 6124 6. TLM Description 6.1 INTRODUCTION/DEFAULTS The Tone Line Module (TLM) for the C-6124 system provides communication with any standard tone remote system. The TLM is shipped from the factory in the following state: 2 Wire mode 600 ohm output impedance...

  • Page 54: Feature Description

    Remote Control Console 6.3 FEATURE DESCRIPTION 6.3.1 CROSSMUTE The Crossmute function provides muting of the receive audio paths on consoles in the same room as a transmitting console. This is to prevent audio feedback. Audio feedback occurs when the microphone audio from one console appears on the speaker of a parallel console in the same room.

  • Page 55: Four Wire Mode

    Vega’s C- 6124 6.3.3 FOUR WIRE MODE Each TLM comes standard with a jumper selectable 2 or 4 wire option. Note: The TLM is shipped in the 2- wire mode. 4-wire mode is accomplished by the following jumper positions: Jumper Position...

  • Page 56: Two Wire Mode

    This option exists for the system operator to be able to debug a system problem. The system operator will be able to verify which control signal came from the C-6124 console. In this position crosspatch transmit audio will be recorded, as well. If JP14 is in the B position then JP15 should be moved to the B position to avoid having crosspatch transmit audio summed in twice.

  • Page 57: Level Adjustments

    Vega’s C- 6124 TP17 RV14: RECORDER OUTPUT RV14 RV9: LAM LEVEL TP12 TP8: TX MONITOR LEVEL RV2: TX MONITOR LEVEL RV11 RV15 RV10 RV4: TX OUTPUT LEVEL TP11 TP9: RX INPUT LEVEL RV1: RX INPUT LEVEL RV13 RV12 6.4 LEVEL ADJUSTMENTS The above figure shows a top view and side view of the TLM card with the adjustment points labeled.

  • Page 58: Crosspatch Transmit Audio

    Remote Control Console 6.4.1.1 MICROPHONE AUDIO RV7 adjusts the level of microphone audio that is summed with the other four transmit audio sources. This potentiometer should be adjusted only when microphone audio must be changed relative to the hold tone output.

  • Page 59: Receive Input

    Vega’s C- 6124 6.4.2.1 RECEIVE INPUT LEVEL RV1 adjusts the gain of the input amp directly off the line. RV1 offers a gain range of +13db to –50db. The resulting audio from this amp stage is fed into the LAM circuit and the Automatic Level Control (ALC) circuit.
  • Page 60 Remote Control Console 6.5 JUMPER SETTINGS JP15 DEFAULT: A JP14 DEFAULT: A JP12 JP10 JP11 The above diagram shows the location of the various jumpers on the TLM card. The line graphic, next to two terminals of each jumper, shows the factory default. The following chart lists the jumper option. Bold print indicates the setting that the TLM is set to at the factory.

  • Page 61: Tx Monitor

    Vega’s C- 6124 6.5.1 Jumper Settings Jumper Position Description See Section TX monitor is disabled 3.4 (2Wire mode) TX monitor is enabled 3.3.3 (TX Monitor); 4.3.3 (level adjustment) Crosspatch RX squelch enabled 3.6 (Squelch control) Crosspatch RX squelch disabled 3.6 (Squelch control) Unselect RX squelch enabled 3.6 (Squelch control)

  • Page 62: Plm Description

    This introduces control tones into the system, which are used by a remote adapter to directly interface with a radio. This mode allows remote radio control without having to lease a line. This mode requires a Vega RP-251 remote adapter panel to work with. A positive keying tone gives security against outsiders calling the remote number by mistake.

  • Page 63: Parallel Line Off-Hook

    Vega’s C- 6124 Crosspatch squelch enabled Crosspatch squelch disabled 7.3.5 PARALLEL LINE OFF-HOOK The green LED in the Instant PTT switch on the front panel of the Switch Bus Module will light when a parallel line is off-hook. PSTN lines usually stay at –48VDC when on-hook. During the off-hook condition the line voltage will drop to about –10VDC.

  • Page 64: Transmit Side Adjustments

    Remote Control Console 7.4.1 TRANSMIT SIDE ADJUSTMENTS The transmit side audio is a summation of four different audio sources – microphone audio, crosspatch audio, single tones, and DTMF tones. The following is a list of the potentiometers that affect the transmit path.

  • Page 65: Receive Side Adjustments

    Vega’s C- 6124 7.4.2 RECEIVE SIDE ADJUSTMENTS The receive circuitry processes the receive audio and distributes it to the proper circuitry for analysis. The audio coming in the receive side is fed to a Line Activity Monitor (LAM), DTMF decoder, recorder, and the Select/Unselect/Xpatch RX busses.

  • Page 66: Jumper Settings

    Remote Control Console 7.5 JUMPER SETTINGS JP15 DEFAULT: JP14 = no selection JP14 JP15 = B DEFAULT: A The above diagram shows the location of the various jumpers on the PLM card. The line graphic next to two terminals of each jumper shows the factory default. The following chart lists the jumper option. Bold print indicates the setting that the PLM is set to at the factory.

  • Page 67: Fcc Notice

    If they do, you will be notified in advance to give you an opportunity to maintain uninterrupted telephone service. If you experience trouble with this telephone equipment, please contact Vega at (800) 877-1771 for information on obtaining service or repairs. The telephone company may ask that you disconnect this equipment from the network until the problem has been corrected or until you are sure that the equipment is not malfunctioning.

  • Page 68: Industry Canada Notice

    Remote Control Console 7.7 INDUSTRY CANADA NOTICE NOTICE: The Industry Canada (IC) label identifies certified equipment. The certification means that the equipment meets telecommunications network protective, operational and safety requirements documents. The department does not guarantee the equipment will operate to the user’s satisfaction. Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local Telecommunications Company.

  • Page 69: Introduction

    The two position plug-in terminal block TB1, available at the rear of the UIM, allows for a 13.6VDC backup battery. A 24 line C-6124 will require an 8 Amp source. Counting from left to right, pin 1 is the positive voltage input.

  • Page 70: Recorder Outputs

    J5 is identified on the rear panel as HANDSET/HEADSET. The handset is plugged directly into the modular jack. The headset must use the Vega HB-2 headset interface box. If a handset or headset is being used JP3 on the UIM analog board must be in the A position. The following chart gives...

  • Page 71: Other Adjustments

    Vega’s C- 6124 This audio level will be inserted to an Automatic Level Control that will not allow audio to rise above 770mVrms. Setting TP21 for 600mVrms allows a good amount of audio deviation before the voice is compressed (subjectively determined).

  • Page 72: List Of Adjustments

    Remote Control Console R V 1 7 R V 1 0 R V 9 R V 8 R V 1 4 R V 7 R V 3 R V 2 R V 5 R V 1 2 R V 1 6 R V 1 1 R V 1 3 R V 1...

  • Page 73: List Of Jumpers

    B: Unselect audio is not included on the Select recorder driver A: Normal console operation B: C-6124 programming mode A: AUX1 audio is routed through the compressor and 2175 notch filter B: AUX1 audio is routed through a 2175 notch filter only...

  • Page 74: Sample Setup Procedure

    Selected cards and transmit the Alert tone. If the Selected cards are already in the transmit mode when the Alert button is pressed then the C-6124 will just add 1khz to the transmit audio path.

  • Page 75: Alert Tone Level

    External Settings The C-6124 has been factory set so that voice audio in full compression will be at the same level as the function tone. This is generally .77V. Press and hold the Release button and then press the Select button without letting go of the Release button.

  • Page 76: Output Driver

    Remote Control Console The notch filter on the TLM is a very steep notch designed to remove the 2175Hz component out of the transmit voice. This prevents the voice audio from affecting the hold tone through superposition of 2175Hz frequencies. While in-phase signals will add together and give more than .08V, out-of-phase signals will cancel each other and there is danger of the remote adapter dropping the transmission due to loss of hold tone.

  • Page 77: Recorder Output

    TP4, the ALC output. It is up to the technician to determine where the “knee” of compression is. Generally, the knee of compression for the C-6124 ALC starts at .59V and ends at around .77V. The consoles are shipped from the factory with the assumption that the “knee”...

  • Page 78: Phone Line Module (Plm)

    Remote Control Console When the receive audio gets to the UIM Analog it has been segregated into an Unselect path or a Select path. The only adjustments on the UIM Analog for receive audio is for the handset/headset earpiece. Two paths drive the earpiece. The first is the receive path from a TLM. The second is the receive path from a phone line.

  • Page 79: Warranty, Service, Repair, And Comments

    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 Vega factory. Warranty does not extend to damage due to improper repairs, finish or appearance items, or malfunction due to abuse or operation under other than the specified conditions, nor does it extend to incidental or consequential damages.

  • Page 80: Specifications

    Power Requirements: .120/240 Vac, 50/60 Hz, 35-w maximum or 12 to 15 Vdc at 8 A maximum Microphone Connection: Handset and Headset 4-wire; Desk and Gooseneck use 6-wire Dimensions (inches): Model Height Depth Width Approximate Shipping Weight C-6124-6: 10.5 35 lb.'s C-6124-12: " " 40 lb.'s C-6124-18: "...

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