Valcom V-9923B Bedienungsanleitung

Valcom Gegensprechanlage V-9923B

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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.

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 system.

The V-9923B code call unit complies with Part 68 of

the FCC Rules and Regulations and has been granted

FCC Registration #BAFUSA-68753-KX-N. The

ringer equivalence is 0.1B and the unit requires a

USOC RJ21X connector.

In accordance with FCC Rules and applicable tariffs,

this code call unit may only be installed with the

authorization of the owner of the host system.

The FCC Registration #BAFUSA-68753-KX-N, will

be listed in the affidavits filed with the telephone

company; it will also be recorded in the system log

kept by installation and maintenance personnel. The

local telephone company is to be notified of the FCC

registration number when this code call unit is

installed.

SPECIFICATIONS

The V-9923B is capable of providing code signaling

for paging purposes; it provides for "meet me"

answer of code call and provides talk circuit and

signaling tone.

Features

• Trunk level access on PABX's, station level

answer

• Can be used with 1A2 type key systems

• 81 two digit codes or 729 three digit codes

• Uses rotary or tone dial signaling

• Dial tone to calling party

• Coded tone output for paging systems

• Switch controlled code verification tone

• Automatically discontinues code sending when

answered

• Capable of being used with another V-9923B to

provide two link operation

• Uses standard 1A2 key system voltages

• Mounts on the wall, in a key cabinet, or in the

PABX Cabinet

Capacity

Each V-9923B Code Call Unit provides the necessary

equipment for 1 link of code call. For an additional

link of code call, another V-9923B is required (two

links maximum).

Dimensions

7.1"H x 5.9"W x 2.1"D

(18.03cm H x 14.99cm W x 5.33cm D)

Power Requirements

The Valcom V-9923B requires –24 Vdc talk

battery and –24 Vdc signal battery. The current

consumption and voltage range is shown in Table 1.

Table 1

Range Idle Operating

"A" Battery –21.5 to –26 Vdc 65mA

"B" Battery –21.5 to –26 Vdc 125mA

Nominal Timing and Frequency

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 nominal

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 sequence 1.5 sec

Time between series of digits 8 sec

The Valcom V-9923B will detect 20-30 Hz ringing

on the answer port. The applied ringing voltage

should be 75 to 125 Vac.

DESIGN

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 system. Figure

2 is a simplified block diagram showing the code call

unit and its connections.

NOTE: The code call unit is designed so that it will

complete a code call sequence before resetting and

returning dial tone, even if all parties hang up.

Application

Key systems and PABX's used in:

• Department stores/shopping centers

• Hospitals, nursing homes

• Noisy locations, manufacturing plants

• Schools, universities

Additional Materials Required

Additional equipment is required to complete a

system when using the V-9923B. These items are:

• -24 Vdc power supply (if existing supply

inadequate or non-existent)

• 66 type connecting block

• 25 pair cable with a female amphenol connector

on one end

• twisted pair crossconnect wire

TONE ON

TONE OFF

.37 sec.

.50 sec.

1.5 sec. 1.5 sec. 8 sec.

"3" "1" "2" "3" "1"

SEQUENCE

BEGINS

SEQUENCE

BEGINS

AGAIN

CONTINUES UNTIL

NSWERED OR

CALLING PARTY

GOES ON HOOK

FIGURE 1

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 may be damaged and the warranty

voided.

a) If power was previously connected,

disconnect or remove power before inserting

or removing unit from the amphenol

connector.

b) Exercise caution when crossconnecting

wires that two adjacent terminals are not

bridged together.

c) Double check all connections before

applying power.

d) Use twisted pair wire for all connections.

Mounting

The Valcom V-9923B code call unit may be mounted

in a key cabinet relay rack or on the wall near the

distribution frame. When choosing a location, it is

necessary that the loop resistance of the PABX or key

system are not exceeded.

Mount the unit in a vacant space in an equipment

cabinet, rack, or key system cabinet, allowing enough

room at the rear of the unit to plug in an amphenol

connector. Mount a 66B type punchdown block near

the unit and label it per Figure 3.

Run a 25 pair cable with a female connector from the

unit to the connecting block. The cable should be

terminated on the connecting block in standard color

code order on a row of the connecting block. Verify

all connections before plugging the amphenol end of

the cable into the V-9923B code call unit.

Connections to PABX

The connections required to connect the V-9923B

to a PABX are shown in Figure 4. The V-9923B

requires a loop start trunk port from the PABX for

access. If more than one link of code call is being

provided, the second V-9923B would require a trunk

also and the two trunks should be in a hunt group

within the PABX. This arrangement allows access to

the second V-9923B if the first V-9923B is in use.

NOTE: ADVISE PERSONNEL USING CODE

CALL UNIT TO ALWAYS WAIT FOR DIAL

TONE FROM CODE CALL UNIT BEFORE

DIALING IN CODE NUMBER!

To answer the code call requires a station from the

PABX. If two code call units are being used, two

stations would be required and they would have to be

in a rotary hunt group also.

Connections to Key Systems

The connections required to connect the V-9923B

to a 1A2 key system are shown in Figure 5. The T,

R, A and L leads are multiplied to all phones in the

system. Use a spare pick-up button and install a 10K

Ohm 1/4 watt 5% resistor either in the phone or at the

connecting block in series with the A lead from each

phone. The V-9923B will discontinue the code call

paging when it recognizes two phones off hook with

two 10K Ohm resistors to ground on the A leads.

NOTE: WHEN USING 1A2 KEY TELEPHONES,

THE TO AND RO LEADS THAT WERE USED

FOR PABX CONNECTION ARE NOT USED.

CCESS

PO RT

NSW ER

PO RT

-9923B

CODE CALL

OUT

R X

ANALOG

PBX

STAT ION

CIRCUIT

TONE OUTPUT

TO PAGING

SYSTEM

SW ITCHED

RELAY

OUTPUT

EP1 EP2AB AG BB BG LS

TO –24 Vdc AND

10 V ac POW ER

SU PPLIES

TO N EXT V-9923B

CODE CALL UNIT

IF EQUIPPED

INH

PBX

OUTGOING LOOP

START CO TRUNK

10K

SPARE LINE BUTTON

ON KE Y TELEPHONE

USED W ITH PBX

USED W ITH 1A2 KEY S YST EM

FIGURE 2

Produktspezifikationen

Marke:	Valcom
Kategorie:	Gegensprechanlage
Modell:	V-9923B

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