Instruction/ maintenance manual of the product V-9923B Valcom
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VSP-V-9923B Issue 4 1 947923 V-9923B CODE CALL UNIT INTRODUCTION This manual provides instructions for identification, installation, operation, and technical assistance for the Valcom V-9923B Code Call Unit.
2 947923 Specifications The timing and frequency specifications of the Valcom V-9923B code call unit are shown in Table 2. Figure 1 is a timing chart showing the nom inal timing of a code call.
3 947923 INSTALLATION Precautions All precautions have been taken at the factory to insure that the equipment functions properly when installed correctly. Please follow the precautions listed below before applying power to the equipment or the equipment m ay be damaged and the warranty voided.
4 947923 Power Connections The connections required to connect the V-9923B to a power supply are shown in Figure 6. Correct polarity must be observed for the unit to function properly. Output Connections The V-9923B contains a tone generator and isolation transformer to allow direct hook-up to the paging system am plifier.
5 947923 TABLE 3 TROUBLESHOOTING CHART PROBLEMS PROBABLE CAUSES AND SOLUTIONS No dial tone. No tone output. Unit doesn't answer. Unit cuts off on answer. Verify power connections; check operation of unit by placing test telephone across the T and R leads and going off hook.
6 947923 26 1 27 2 28 3 29 4 30 5 31 6 32 7 33 8 34 9 35 10 36 11 37 12 38 13 39 14 40 15 41 16 42 17 43 18 44 19 45 20 46 21 47 22 48 23 49 24 50 25 W/B L BL/W W/O O/ W W/G G/ W W/B R BR/W W/S S/W R/.
7 947923 PART OF PB X LOOP START OUTGOING C.O. TRUNK (R OTA RY OR T.T.) PBX ANA LOG ST ATI ON PORT T R T R T R TO RO W/B L ( 1) BL/W (2) W/B R (7 ) BR/W ( 8) FIGURE 4 CON NECT IONS OF V - 9923B TO PAB X T R W/B L (1 ) BL/W (2) PART OF CONNECT ING BLO CK RO W B INH L G/W (6) W/O (3 ) O/W (4) LS TO 1 0 Va c ON PO W ER SUPPL Y T R A L LG P.
8 947923 BK/BL BL/BK Diode 1N4003 or eq. (Porti on of Connec ting Blo ck) DC Power Supply depends on r ela y requi rem ents Relay Coil FIGURE 7 CONNECTIO NS O F V -9 923B FOR OPE RATING A DC SLAVE REL.
An important point after buying a device Valcom V-9923B (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-9923B 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-9923B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Valcom V-9923B you will learn all the available features of the product, as well as information on its operation. The information that you get Valcom V-9923B will certainly help you make a decision on the purchase.
If you already are a holder of Valcom V-9923B, 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-9923B.
However, one of the most important roles played by the user manual is to help in solving problems with Valcom V-9923B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Valcom V-9923B 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
