Valcom C.O. Audible Ringer
Contents
1. 18 vac SIONAL a aux 2 COMMON 2 aroun 3 aux 20 0 o aux 2 N C Sia w t e E N q Y a N amp N w GROUND 105 VAC SIGNAL 18 VAC SIGNAL SIGNAL COMMON AUX 1 N O AUX 1 COMMON FIGURE 2B TECHNICAL ASSISTANCE When trouble is reported verify power is being supplied to the unit buzzer ringing voltage or contact closure appears at the unit and that there are no broken connections at the screw terminals To effectively test the unit a VOM and a lineman s test set will be required Use the VOM to check for voltage from the power supply and to verify that buzzer or ringing is coming from the telephone system The lineman s test set can be used to check for the warble tones on the T OUT and R OUT leads to the speaker If a spare unit is available continue to troubleshoot by substituting a spare unit for the suspected unit Assistance in troubleshooting is available from the factory When calling you should have a VOM a telephone test set and be calling from the job site Call 540 563 2000 and press 1 for Technical Support or visit our website at http www valcom com The V 9924C is not field repairable Valcom equipment contains no user serviceable parts inside Valcom Inc maintains service facilities in Roanoke VA Should repairs be necessary attach a tag to the unit clearly stating your company name address phone number2. contact person and the nature of the problem Send the unit to Valcom Inc Repair and Return Dept 5614 Hollins Road Roanoke VA 24019 5056 RINGING OR BUZZER COMMON 11 26 Ji A 10 ZONE 1IN TP II 17 ZONE 1 IN RING c1 K3 L 22mt K cowl g 1 ZONE 1 OUT TIP BUZZER 12 27 X ah A ee 2 ZONE 1 OUT RING RINGING 13 28 AA R8 Yy vB 18 ZONE 2 IN TIP we VOLUME R1 ZONE 1 19 ZONE 2 IN RING RING K2 DETECTION Tipa 3 ZONE 2 OUT TIP UNA OR RING 7 X 4 ZONE 2 OUT RING DRY CLOSURE 22 4 y vR 20 ZONE 3 IN TIP VOLUME ZONE 2 21 ZONE 3 IN RING rron f GENERATION i Ki 5 ZONE 3 OUT TI enh H TIP 4 6 ZONE 3 OUT RING GND 14 29 RIG Vw s 25 AUX 1 N O POWER FS ZONES K 23 AUX 1 COMMON SUPPLY 24VDC 15 30 ZONE 3 B BATT T 24 AUX 1 N C PIN NUMBERS ON 24VDC TE AUR DIED TERMIAL BLOCK 8 Aux 2 common 9 AUX2N C FIGURE 3 SIMPLIFIED SCHEMATIC 4 947023 VALCOM 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 one year 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 inspection by Valcom Inc indicates the validity of the claim the defect is not the result of damage misuse o
3. 9 L lt Se S a el FIGURE 1A OPERATION Pitch Control Figure 3 shows a V 9924C simplified schematic Dipswitches have been provided to vary the When the V 9924C is idle 1T IN is shorted to 1T pitch of the warble ring tone should a different OUT 1R IN is shorted to 1R OUT 2T IN is pitch be desired Generally this control does shorted to 2T OUT 2R IN is shorted to 2R OUT not require adjustment see Figure 2B If 3T IN is shorted to 3T OUT and 3R IN is shorted adjustment is necessary see chart to select to 3R OUT desired pitch see Figure 2A A signal appearing at the T IN R IN terminals BIT 1 BIT 2 will also appear at the TOUT R OUT terminals for each zone LOW OFF OFF Signaling When ringing or buzzer voltage appears at the m signaling input leads of the V 9924C or UNA MED OFF ON closure pins are connected relays are energized and the 1T OUT 1R OUT 2T OUT 2R OUT 3T OUT and 3R OUT leads are switched to the outputs of three 5 Watt HI ON OFF amplifiers one for each zone At the same time the electronic warble tone is connected to the input of each of the amplifiers and the warble signal which follows the interrupted ringing DEFAULT ON ON pattern is broadcast to all of the speakers Each zone has its own volume control so the volume can be set to a comfortable level FIGURE 2A 3 947023 ZONE 1 zone Q ZONE 3 BE erco CONTROL SIGNAL COMMON 24 VDC 105 vac SIGNAL
4. AC and the current requirement would be 8mA The buzzer voltage should be approximately 18VAC and the current requirement would be 10mA The V 9924C pulls approximately 3mA through a dry contact closure for activation Ringing and buzzer voltages cannot be applied simultaneously Use only one method of activation 947023 To Key SIGNAL COMMON 11 System 18 VAC SIGNAL 12 Common 90 VAC SIGNAL 13 Audible To UNA or Ring UNA CLOSURE 7 Dry Closure UNA CLOSURE 22 GROUND 14 Power sane AUX 1 N O 25 24 VDC 15 AUX Relay AUX 1 COMMON 23 Contacts AUX 1 N C 24 AUX 2 N O 10 AUX a AUX 2 COMMON 8 Contacts AUX 2 N C 9 16 ZONE 1 IN TIP 17 ZONE 1 IN RING ZONE 1 OUT TIP 2 ZONE 1 OUT RING 18 ZONE 2 IN TIP 19 ZONE 2 IN RING ZONE 2 OUT TIP ZONE 2 OUT RING 20 ZONE 3 IN TIP 21 ZONE 3 IN RING 5 ZONE 3 OUT TIP 6 ZONE 3 OUT RING From Page Unit Speakers for Zone From Page Unit Speakers for Zone From Page Unit Speakers for Zone ee ae Se r FIGURE 1 SIMPLIFIED BLOCK DIAGRAM INSTALLATION Precautions Failure to observe the following precautions could result in damage to the V 9924C and other equipment a Unplug the power supply when connecting the power leads and signal leads to the unit These leads are brought in on adjacent terminals Accidental b
5. VALCOM Issue 1 V 9924C COMMON AUDIBLE RINGING UNIT GENERAL The Common Audible Ringing Unit provides an audible signal over the paging system when there is an incoming call It is used between a telephone system and the public address system SPECIFICATIONS Activation e 1A2 Bell Buzzer ICM e PABX Station Port e Contact Closure Features e Activates via ringing voltage buzzer voltage or contact closure e Capable of switching signal to three zones simultaneously e Uses standard 1A2 key system voltages e Each zone is equipped with a 5 Watt amplifier and volume control e Screw terminal connection e Compact size can be mounted on wall or in cabinet e Automatically switches paging speakers from paging system to audible signal of the V 9924C during the ring interval of the incoming call e Variable pitch control e Two auxiliary contact closures Other Materials Required e 24VDC power supply e Cat 3 or 5 twisted pair telephone cable e Mounting screws and hardware Dimensions Weight e 8 20 H x 4 55 W x 2 30 D 20 83cm H x 11 56cm W x 5 84cm D e 1 3 Ibs 0 59kg Power Requirements The V 9924C requires a 24VDC B battery and draws 50mA idle and 300mA maximum operating Signal Requirements The V 9924C requires interrupted ringing or buzzer voltage or dry contact closure to operate The output of the V 9924C will follow the interruptions of the input The ringing voltage should be approximately 90V
6. r negligence after the original shipment the product has not been altered in any way or repaired by others and that factory sealed units are unopened a service charge plus parts and labor will be applied to units defaced or physically damaged freight charges for the return of products to Valcom are prepaid all units out of warranty are subject to a service charge The service charge will cover minor repairs 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 This warranty specifically excludes damage incurred in shipment In the event a product is received in damaged condition the carrier should be notified immediately Claims for such damage should be filed with the carrier involved in accordance with the F O B point Headquarters Valcom Inc 5614 Hollins Road Roanoke VA 24019 5056 Phone 540 563 2000 FAX 540 362 9800 5 947023
7. ridging of these two terminals could damage the equipment b Use pared crossconnect wire for all voice connections and voltages c Set all volume controls to their minimum counter clockwise level Mounting Remove the metal mounting plate from the rear of the V 9924C enclosure Using two 6 3 4 wood screws mount the plate in a vacant space on the backboard with the telephone system common equipment Both mounting holes must be utilized to insure secure mounting of the unit see Figure 1A Open the V 9924C enclosure to access connections and option switches Slide the rear of the unit contains the board onto the mounting plate and lock in place with screw provided Make connections Signaling Connections The V 9924C can be activated via ringing voltage buzzer voltage or a dry contact closure When used with buzzer voltage apply one side of the pair to SIG COMMON pin 11 or 26 and the other side of the pair to 18VAC SIG pin 12 or 27 For ringing voltage connections put one side of the pair on SIGCOMMON pin 11 or 26 and the other side of the pair to 9OVAC SIG pin 13 or 28 The V 9924C can also be activated by connecting one side of a dry contact closure to pin 7 and the other side of the dry closure to pin 22 Speaker Connections The V 9924C Common Audible Ringing Unit is capable of switching up to three zones of speakers to the audible signal generated by the unit The device is intended to be placed in se
8. ries with the speakers Zone 1 IN pins 16 and 17 are connected to the speaker zone output leads of the page control Zone 1 OUT pins 1 and 2 are connected to the speakers Zones 2 and 3 hook up in a similar fashion Refer to Figure 2B for pin numbers Power Connections Connect 24VDC from the power supply to pin 15 or 30 on the crossconnect block and ground to pin 14 or 29 Contact Closure Two form C auxiliary contact closures are provided on the V 9924C These contacts follow the input cadence and may be used for special applications The contact ratings are 1 Amp at 24VDC Set Up After all connections are complete and double checked apply voltage to the unit Place a call to the telephone system and while ringing or buzzer is being applied to the unit or when the dry contact closure closes adjust the volume of each zone by turning the volume control clockwise for each zone Replace cover when all connections and adjustments are complete and lock in place using the 6 72 screws provided 947023 WIRE TIE LOOP WIRE TIE USED TO BUNDLE WIRES ENTERING AND LEAVING TERMINAL AREA TO REMOVE COVER LOOSEN SCREW THEN ACTIVATE LATCH WIREWAY OPENING TO WALL PLATE AND 155 DIA HOLES FOR MOUNTING TO CIRCUIT BOARD S PSAN PEERS OPENING a HOUSING ASSEMBLY A Na EARN zs COVER ST A E 8 E ae l a F AT fee
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