Valcom V-9923B manual

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Table of contents for the manual

  • Page 1

    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. The V-9923B provides two or three digit code call paging via a loop start trunk port on a PABX or by the use of a spare line button on a key s[...]

  • Page 2

    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. Table 2 Dial Tone Frequency 180 Hz Coded Tone Frequency 550 Hz Time Tones Broadcast 370 ms Time between tones in a sequence 500 ms Time between digits in a [...]

  • Page 3

    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. a) If power was previously connected, disconnect or rem[...]

  • Page 4

    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. The tones are applied to [...]

  • Page 5

    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. If dial tone present, check wiring to key system or PABX. If no di al [...]

  • Page 6

    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/ BL BL/ R R/ O O/R R/ G G/R R/ BR BR/ R R/ S S/ R BK/ BL BL/ BK BK/ O O/BK BK/ G G/BK BK/ BR BR/ BK BK/ S S/ BK Y/ BL BL/ Y Y/ O O/Y Y/ G G/Y Y/ BR BR[...]

  • Page 7

    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.U. 10K N E [...]

  • Page 8

    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 RELAY T HR EE DIG I T OPE RATI ON T W O DI GI T OPE RATI ON NO COD E VER IFICAT ION CODE V ERI FI C ATI O N MU ST BE IN T HE O N POS ITION SOL ID LAMP FL[...]