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Class Connection VC-24 User Manual

Expandable 24/48/72/96 zone
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TALKBACK INTERCOM SYSTEM
EXPANDABLE 24/48/72/96 ZONE
CONTENTS
The VC-24 Talkback Intercom System provides 24 stations with one-way, two-way, group call and all call pages.
Each station can be programmed for one-way or two-way communication. The stations may be grouped into one-
way page groups. The system also provides the ability for a remote speaker location equipped with a call button to
call the attendant location. The attendant receives calling speaker identification when using a Caller ID equipped
telephone or a Caller ID display.
The VC-24 is compatible with standard 45 ohm speakers and one-way amplified speakers and can be accessed via a
single line phone, E-Key line port or PABX loop start trunk port. An RS-232 port on the control unit provides a
connection for a serial printer for printout of system activity.
The VC-24 provides a background music input and is designed to automatically mute music during a page. The
basic system also provides four (4) contact closures associated with the last 4 zones to allow for door strike plate
activation. Multiple VC-24 control units can be interconnected to allow global all call and global priority pages for
up to six (6) VC-24 control units.
VC-24
1, 2
2, 3
3, 4
3, 4
5
6
7
7
7
8
8
8
9
9
9
10
10
11
11-26
27,28
VC-24 with VC-24EXP Expansion Unit
28
28
29
29
30
1
Issue 1
947226

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Summary of Contents for Class Connection VC-24

  • Page 1: Table Of Contents

    Caller ID display. The VC-24 is compatible with standard 45 ohm speakers and one-way amplified speakers and can be accessed via a single line phone, E-Key line port or PABX loop start trunk port. An RS-232 port on the control unit provides a connection for a serial printer for printout of system activity.

  • Page 2: Specifications

    The VC-24 Control Unit provides access to 24 stations. A VC-24EXP Expansion Unit is available for the VC-24. Each VC-24EXP Expansion Unit will increase the capacity of the VC-24 by twenty-four (24) additional stations. Up to three (3) Expansion Units can be added to a system for a total of 48, 72, or 96 zones of paging.

  • Page 3: Installation

    • Tip and Ring Input Impedance: 600 Ω • Background music system-wide level control • • Tip and Ring Input Level: -10 dBM nominal All call level • Priority page level Background Music Amplifiers 10 K Ω Input Impedance: AUXILIARY CONTACTS •...
  • Page 4 Connect cordset to unit via IEC 320 female connector located on one Connections end of cordset to IEC 320 male appliance coupler located on VC-24. • For 115 VAC use, verify fuse rating of 1 amp and voltage Mount (3) 66B type punchdown blocks on the selector switch displays 115 V.

  • Page 5: Control/Connector Locations

    FIGURE 1 - VC-24 CONTROL AND CONNECTOR LOCATIONS Top View Side View R115 VC-24 115/230 Fuse Battery Backup Power Switch Connector Switches: Volume Controls: - NOT USED - Handsfree Speaker to Phone Level SW2, SW3 - NOT USED - Handsfree Phone to Speaker Level...

  • Page 6: Punchdown Block Connections

    FIGURE 2 - PUNCHDOWN BLOCK CONNECTIONS Block P3 - Speaker Outputs Block P6 - Switch Inputs Block P7 - System Inputs W/BL T STA 1 W/BL INA1 W/BL Tip - Attendant Tel Group 1 BL/W R STA 1 BL/W INB1 BL/W Ring - Attendant Tel T STA 2...

  • Page 7: Attendant Port Connection

    ATTENDANT PORT CONNECTION Tel. System Telephone C. O. Line Port P7 Connecting Block W/BL Caller BL/W ID Box External Signalling Device BACKGROUND MUSIC CONNECTION P7 Connecting Block Low Level W/GR Music GR/W Source DOOR SPEAKER AND CALL SWITCH CONNECTION (STATIONS 1-20) (STATIONS 21-24) Block P3 Speaker Outputs Block P3 Speaker Outputs...

  • Page 8: Inhibit Option

    BR/R Open Switch *NOTE: External tone source requires programming option to enable feature. See Table 1(SW3-8) SMDR PRINTER PORT CABLE DB25 Male DB9 Female To P10 VC-24 Control Unit Baud Rate 9600, 8 bit, no parity, 1 stop bit 947226...

  • Page 9: Override Page Port

    (SW4 ON) (SW4 OFF) BK/BL BL/BK SW4 on the control board must be set accordingly GLOBAL ALL CALL PAGE (FROM ATTENDANT DIAL UP) VC-24 #1 VC-24 #2 VC-24 #3 P7 Connecting Block P7 Connecting Block P7 Connecting Block Y/BR Y/BR...

  • Page 10: Zone Page Option

    ZONE PAGE OPTION ONE WAY ONLY V-1092 P3 Speaker Outputs 70 Volt TSTA1 RSTA1 TSTA2 RSTA2 TSTA3 RSTA3 P6 Switch Inputs INA1 INB1 * To Enable Feature, strap must remain INA2 across pair when unit is powered INB2 INA3 INB3 CLOCK SYNC INPUT P7 Connecting Block Master...

  • Page 11: Dipswitch Options

    Tel. System Page Port Access Loop Start Trunk Port INSTALLATION OF THE PROGRAMMING TOOL The VC-24 Programming Tool is a windows based software tool designed to interface with the VC-24. Minimum Computer Requirements for the Class Connection VC-24 Programming Tool: Hardware: •...
  • Page 12 VC-24 System Configuration To begin the programming process, click on File. A pull-down menu appears allowing selection of a previously programmed file (click on Open) or the ability to create a new file (click on New). The following instructions assume a New configuration file is being created. Click on New from the pull-down menu. A System Configuration screen is displayed to allow selection of the installed components within the system.
  • Page 13 VC-24 When OK is selected from the System Configuration screen, the Programming Window appears - see below. The Programming Window allows each option to be accessed by selecting the option and pressing Open or by double clicking on the selected option. All functions can be listed at once by pressing Open All.
  • Page 14 VC-24 Architectural Number and CLID (Caller ID) Programming The first function to configure is the Architectural Number and CLID Programming. The Architectural Number is a 1 to 4 digit number that is dialed by the phone to connect to a specific speaker.
  • Page 15 Enter information for the Main Board as well as each Expansion Unit being used and press OK to accept. Audio Connections This screen allows selection of groups to receive Background Music, Time Tones and Emergency Tones. This sample system consists of a “Main Board + Expansion 1” so eight groups are available to receive audio connections.
  • Page 16 The zones for each feature: BGM, Time Tone and Emergency, are selected in the same manner. Defaults: - All Off Time Tone - All On Emergency - All On After zones for each feature have been selected, press the OK button. The Audio Connections screen disappears, with the Programming Window still being active to allow selection of other options.
  • Page 17 Default option of all stations, with or without the Option Board installed, is Normal/Emergency. Custom Page Groups When Custom Page Groups is selected, the following screen is displayed. There are 4 Custom Page Groups available. Select the Page Groups to receive custom paging by clicking on the desired box. Each Custom Page Group can contain all groups or a combination of groups.
  • Page 18 NOTE: The contact closure pairs 13, 14, 15, 16 on the system punchdown block, should be wired to the tone select input of an external tone generator (V-9927A). The tone output of the external tone generator should then be wired to the external tone input of the VC-24, pair 5 of the system punchdown block.
  • Page 19 OFF (not selected). Select the desired options and click on OK to exit this screen. The options are described in more detail in the Control Unit (VC-24) document or select Help from the pull-down menu for on-screen details.
  • Page 20 Dip switch equivalent of programmed options. 947226...
  • Page 21 Once system programming is complete, this data must be downloaded to the VC-24 System. This communication can be accomplished through two methods: Initiating Communications Direct Connect (PC is on site with the VC-24 System - can be accessed via RS232 cable). To Connect: Connect cable from the VC-24 to the PC being used.
  • Page 22 REMINDER: For a modem to communicate with the VC-24, there must be a remote modem connected to the VC-24. Refer to the VCMDM manual for details. Direct Connect - Set Up Com Port Select File, Com Setup, Com Port Selection.
  • Page 23 From the main menu, select Send Data to VC-24. If a file is open, that file will be sent to the VC-24 System. If no file is open when Send Data to VC-24 is selected, the screen appears to allow selection of the data file to be opened and downloaded to the VC-24.

  • Page 24: Set System Date And Time

    Read Software and Firmware Revision Numbers This feature is accessed through the Help menu. Select Help, then About. This option provides information for all processors. Reminder: The PC must be connected to the system to access this information. VC-24 VC-24 Ending Communications Direct Connect: No action required, just unplug cable.

  • Page 25: Menu Options

    HELP The Help pull-down menu provides on-screen definition of elements provided by the VC-24 Talkback Intercom System. Select Help, select Contents. Click on General Description or Detailed Information to view the list of topics available through the Help menu.
  • Page 26 VC-24 VC-24 EXIT Select Exit from the File pull down to close the Programming Tool. 947226...

  • Page 27: Operation

    Inhibit OPERATION Allows the use of a single line phone (“A” lead Originate a Handsfree Page modified). When the phone goes offhook, all • Lift handset, receive dial tone (default) handsfree, group, and/or all call pages are cancelled • Dial access code and the phone is connected to the attendant.

  • Page 28: Remote Station Access (Call Button)

    Remote Station Access - Call Button Button Presses Function 1 press Originate call to attendant 2 presses Meet-Me / Follow-Me if appropriate (see definitions) 3 presses Ignored 4 or more presses Originate emergency call to attendant Attendant Station Dialing Plan 2 Digit Zone Access to Individual Stations: Dial Code Function...

  • Page 29: Troubleshooting Chart

    Repair & Return Dept. 5614 Hollins Road Roanoke, VA 24019-5056 Class Connection LIMITED WARRANTY Valcom, Inc. warrants its products to be free from defects in materials and workmanship under conditions of normal use and Service for a period of two years from the date of shipment. The obligation under this warranty shall be limited to the replacement, repair or refund of any such defective device within the warranty period, provided that: 1.

  • Page 30: Glossary Of Terms

    Emergency C. C. (34/9) - Contact closure follows emergency activate to enable external tone source. External Tone Input (30/5) - Input for low level tone source (i.e., V-9927A). Global All Call Activate (43/18) - Control pair for use with multiple VC-24 systems that require all call pages to be broadcast to all interconnected systems.

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