Table of Contents
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TALKBACK INTERCOM SYSTEM
EXPANDABLE 24/48/72/96 ZONE
CONTENTS
The V-2924 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 V-2924 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 V-2924 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 V-2924 control units can be interconnected to allow global all call and global priority pages for
up to six (6) V-2924 control units.
V-2924
1, 2
2, 3
3, 4
3, 4
5
6
7
7
7
8
8
8
9
9
9
10
10
11
12,13
V-2924 with V-2925 Expansion Unit
13
13,14
14
14
15
16
1
VSP-V-2924
Issue 3
947211
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Table of Contents
Related Manuals for Valcom V-2924
Summary of Contents for Valcom V-2924
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Page 1: Table Of Contents
TALKBACK INTERCOM SYSTEM EXPANDABLE 24/48/72/96 ZONE CONTENTS INTRODUCTION SPECIFICATIONS INSTALLATION Precautionary Information V-2924 Control/Connector Locations Punchdown Block Connections Attendant Port Connection Background Music Connection Door Speaker/Call Switch Conn. Inhibit Option External Tone Source (ex.V-9927A) SMDR Printer Port Cable Override Page Port Global All Call Page Global Priority Page Zone Page Option... -
Page 2: Specifications
The V-2924 Control Unit provides access to 24 stations. A V-2925 Expansion Unit is available for the V-2924. Each V-2925 Expansion Unit will increase the capacity of the V-2924 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. A V-2926 Plug-in Option Board is also available to provide enhanced Caller ID, flexible architectural numbering, user defined page groups, a secondary serial port for easier programming and real-time clock. -
Page 3: Installation
Background Music Amplifiers Input Impedance: 10 K Frequency Response: 50 Hz to 17 kHz +/- 3 dB Distortion: < 1.0 % Signal to Noise: -70 dB Output Impedance: Output Power: 1 watt per zone Page Amplifiers Frequency Response: 150 Hz to 7.5 kHz +/- 3 dB Distortion: <... - Page 4 radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Mounting The V-2924 was designed for wall mounting only. Using the enclosed paper template, mark the locations for the mounting screws on a plywood backboard (minimum ½”...
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Page 5: V-2924 Control/Connector Locations
FIG URE 1 - 2924 CO NT RO L AND CO NNECT O R LO CAT IO NS S ide View P 10 P 10 S witc hes : S W 1 - B G M G roup S elec t Dip S w itc h (S ee Table 1) S W 2, S W 3 - O ption Dip S witc h (S ee Table 1) S W 4... -
Page 6: Punchdown Block Connections
FIGURE 2 - PUNCHDOWN BLOCK CONNECTIONS Block P3 - Speaker Outputs Block P6 - Switch Inputs W/BL T STA 1 BL/W R STA 1 T STA 2 R STA 2 W/GR T STA 3 GR/W R STA 3 W/BR T STA 4 BR/W R STA 4 T STA 5... -
Page 7: Attendant Port Connection
ATTENDANT PORT CONNECTION P7 Connecting Block W/BL BL/W BACKGROUND MUSIC CONNECTION P7 Connecting Block DOOR SPEAKER AND CALL SWITCH CONNECTION (STATIONS 1-20) Block P3 Speaker Outputs TSTA 1 RSTA 1 TSTA 20 RSTA 20 Block P6 Switch Inputs INA 1 INB 1 INA 20 INB 20... -
Page 8: Inhibit Option
P7 Connecting Block W/BL BL/W B / O O / B EXTERNAL TONE SOURCE USING A V-9927A Control from time clock Emergency Closure Normally Open Switch NOTE: External tone source requires dip switch settings to enable feature. See Table 1(SW3-8) SMDR PRINTER PORT CABLE To P10 V-2924... -
Page 9: Override Page Port
GLOBAL ALL CALL PAGE (FROM ATTENDANT DIAL UP) V -2924 #1 P 7 Connec ting B loc k Y /G R Y /B R G R/Y B R/Y NO TE : G lobal all c all page requires dip s witc hes (S W 3-4, S W 3-5) be s et on eac h V -2924 c ontrol unit to enable feature. -
Page 10: Zone Page Option
ZONE PAGE OPTION ONE WAY ONLY P3 Speaker Outputs TSTA1 RSTA1 TSTA2 RSTA2 TSTA3 RSTA3 P6 Switch Inputs INA1 INB1 INA2 INB2 CLOCK SYNC INPUT P7 Connecting Block Y/SL SL/Y Master Clock must make contact closure at 0200 Hours. 947211_4.DRW V-1092 70 Volt * To Enable Feature, strap must remain... -
Page 11: Dipswitch Options
User Programming - Basic System Table 1 - Dipswitch Options for Switches SW1 - SW4: (Shaded areas indicate default values - Unit power source must be removed before altering dip switch settings) Main Board SW2 Station 21 call button NORMAL priority SW2-1 Station 22 call button NORMAL priority SW2-2... -
Page 12: Operation
OPERATION Originate a Handsfree Page Lift handset, receive dial tone (default) Dial access code Hear alert tone (default) in handset and at speaker Issue page Anyone hearing page can reply handsfree by speaker Hang up to terminate call Originate a Group Page Lift handset, receive dial tone (default) Dial group page access code Hear alert tone (default) in handset and at... -
Page 13: Remote Station Access (Call Button)
Attendant unlocks door by pressing “*” key twice while connected to door speaker (door speaker must be connected to one of the last four zones of the main board making the door unlock feature available) Attendant must hang up to terminate call. Remote Station Access - Call Button Button Presses 1 press... -
Page 14: Troubleshooting Chart
(Major repairs will be subject to additional charges for parts and labor). This warranty is in lieu of and excludes all other warranties, expressed or implied, and in no event shall Valcom, Inc. be liable for any anticipated profits, consequential damages, loss of time or other losses incurred by the buyer in connection with the purchase, operation or use of the product. -
Page 15: Technical Assistance
When trouble is reported, verify there are no broken connections. Assistance in troubleshooting is available from the factory. Call (540) 427-3900 and ask for Technical Support. or call (540) 427-6000 for Valcom 24-hour Automated Support or visit our website at http://www.valcom.com. -
Page 16: Glossary Of Terms
Glossary of Terms (Numbers in parenthesis are the pin outs on P7 connection block required for this feature) Attendant Port (26/1) - Primary system access is achieved on this pair. A dedicated single line telephone, electronic key system C. O. line position, or PABX loop start trunk port is required for access. Background Music Input (28/3) - Input for low level music source (i.e., V-2952).