9479801Issue 6V-9908 MESSAGE/PAGE PANELIntroductionThese instructions contain the specifications andguidelines necessary to install, operate, andmaintain the V-9908, Message/Page Panel.The V-9908 Message/Page Panel provides ahandheld push-to-talk microphone for live pages andstorage for eight messages. The V-9908 iscompatible with all Valcom self-amplified speakers.The microphone, power and internal memory aremonitored, with visual and audible indicators if anyfault conditions are detected. When used withValcom Supervised Distributed Amplified One-WayPaging Speakers and Horns, full system supervisionincluding the speaker audio path is possible.ApplicationsValcom Supervised Distributed AmplifiedOne-Way Paging Systems.Refer to Figure 1 for a block diagram of a typicalinstallation.FeaturesDynamic noise canceling handheld microphonefor live pageProvides up to 8 minutes of high quality digitalrecordingStores and plays up to 8 messagesEight (8) preprogrammed messages includedPC ProgrammableMessage panel fully supervisedProvides speaker line supervisionProvides microphone supervisionProvides DC power supervisionAllows remote message activationVisual and audible system trouble indicationAudible signal cancel buttonPower "ON" indicatorMounts in most 4 gang deep electrical boxDimensions5"W x 4.25"H x 2”D(12.7cm W x 10.8cm D x 5.08cm H)4 lbs. (1.5Kg)SpecificationsPower RequirementsOperating Voltage 22 – 26VDCCurrent 250mAMicrophone InputInput Impedance: >5000 OhmsInput sensitivity: 1kHz 1 millivolt for -12dBmoutput (output terminated with 100 Ohms)AudioFrequency Response:Mic – Output: 150Hz – 7,000HzFrequency Response:Stored Messages – Output: 150Hz – 3,500HzInput Sensitivity (mic): 1kHz 1 millivolt for -12dBmoutput (output terminated with 100 Ohms)Signal to Noise (Idle mode, Ref -12dBm): >70dBSignal to Noise (Mic active, Ref -12dBm) >50dBDistortion (Mic – Output): < 1% THD at -12dBmOutput Impedance: < 25 OhmsNominal output level: -12dBm (Ref 600 Ohms)Maximum output level: 0dBm (before clipping)System SupervisionMain Audio Channel: 30Hz tone (inaudible)Microphone: 1kHz tone supervises the preamp,cable and elementMicrophone Switch: DC loop with 4.7K Ohm resistorAudio Output: DC loop terminated with a 4.7K Ohm1/4W resistorVoice Storage Memory: Fixed segment memorymonitoringMain Power: 9VDC battery provides redundantsupervision powerBattery: Low voltage monitoringAll system faults are indicated by both an audibleand visual alarm. The audible alarm may besilenced, however, the visual indicator will continueto illuminate until the fault is removed.User Controls (Figure 1)Push-to-Talk MicrophonePushbuttons to activate pre-recorded messagesPushbutton to cancel message playPushbutton to cancel wire fault alarm