Instruction/ maintenance manual of the product V-9924C Valcom
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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.
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.
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.
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.
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.
An important point after buying a device Valcom V-9924C (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Valcom V-9924C yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Valcom V-9924C - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Valcom V-9924C you will learn all the available features of the product, as well as information on its operation. The information that you get Valcom V-9924C will certainly help you make a decision on the purchase.
If you already are a holder of Valcom V-9924C, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Valcom V-9924C.
However, one of the most important roles played by the user manual is to help in solving problems with Valcom V-9924C. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Valcom V-9924C along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
