Valcom V-9924C manual

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- informations concerning technical data of Valcom V-9924C
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Table of contents for the manual

  • Page 1

    Issue 1 1 947023 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 • 1A2 Bell/Buzzer ICM • PABX Station Port • Contact Closure Features • A[...]

  • Page 2

    2 947023 GROUND -24 VDC AUX 2 N.O. AUX 2 COMMON UNA CLOSURE ZONE 3 OUT - TIP ZONE 2 OUT - TIP ZONE 1 OUT -RING 90 VAC SIGNAL ZONE 3 IN - TIP AUX 1 N.O. SIGNAL COMMON 18 VAC SIGNAL AUX 1 N.C. UNA CLOSURE AUX 1 COMMON ZONE 1 IN - TIP ZONE 2 IN - TIP AUX 2 N.C. ZONE 1 IN - RING ZONE 1 OUT - TIP ZONE 2 IN - RING ZONE 2 OUT - RING ZONE 3 IN - RING ZONE [...]

  • Page 3

    3 947023 OPERATION Figure 3 shows a V-9924C simplified schematic. When the V-9924C is idle, 1T IN is shorted to 1T OUT, 1R IN is shorted to 1R OUT, 2T IN is shorted to 2T OUT, 2R IN is shorted to 2R OUT, 3T IN is shorted to 3T OUT and 3R IN is shorted to 3R OUT. A signal appearing at the T IN, R IN terminals will also appear at the T OUT, R OUT ter[...]

  • Page 4

    4 947023 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 vol[...]

  • Page 5

    5 947023 VALCOM LIMITED WARRANTY Valcom, Inc. warrants its products to be free from defects in materials and workmanship under conditions of normal use and serv ice for a period of one year from the date of shipment. The obli gation under this warranty shall be limited to the replacement, re pair or refund of any such defective device with in the w[...]