Toa VS-900 User Manual

INSTALLATION MANUAL

VOICE SECURITY SYSTEM VS-900

Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.

Be sure to leave system installations, adjustments, and data settings to the dealer from whom
you have purchased.

2

TABLE OF CONTENTS

1. SAFETY PRECAUTIONS ................................................................................... 4

2. FCC REQUIREMENTS ....................................................................................... 6

3. INDUSTRIAL CANADA REQUIREMENTS .................................................. 7

4. GENERAL DESCRIPTION ................................................................................ 8

5. FEATURES ............................................................................................................. 8

6. INSTALLATION PRECAUTIONS ..................................................................... 8

7. SYSTEM CONFIGURATION AND EQUIPMENT FUNCTIONS

7.1. System Configuration ........................................................................................... 9

7.2. Equipment Functions .......................................................................................... 10

8. VS-900MF MAIN FRAME NOMENCLATURE AND FUNCTIONS ....... 12

9. INSTALLATION AND CONNECTION PROCEDURES ............................ 13

10. EQUIPMENT INSTALLATION

10.1. VS-900MF Main Frame

10.1.1. Rack mounting ...................................................................................... 14

10.1.2. Wall mounting ....................................................................................... 15

10.2. PU-200 Power Transformer unit

10.2.1. Rack mounting ...................................................................................... 16

10.2.2. Wall mounting ....................................................................................... 17

10.3. RS-150, RS-160, RS-170, RS-180 and RS-190 Substations ........................... 18

10.4. RS-191 Option Handset (Indoor type)

10.4.1. Wall mounting ....................................................................................... 19

10.4.2. RS-190 and RS-191 connection ........................................................... 19

10.5. Master Station

10.5.1. Desk-top mounting ................................................................................ 20

10.5.2. Wall mounting ....................................................................................... 20

10.6. VS-900SC Site Connector

10.6.1. Rack mounting ...................................................................................... 21

10.6.2. Mounting to the VS-900MF ................................................................... 21

10.6.3. Wall mounting ....................................................................................... 21

11. VS-900MF CARD INSTALLATION

11.1. Backup Battery Installation ............................................................................... 22

11.2. Card Installation ................................................................................................ 23

12. WIRING

12.1. Wiring from the Station or Outside Line ............................................................ 24

12.2. Supplied Connector Connection ....................................................................... 25

12.3. VS-900MS Master Station Interface Card Connection

12.3.1. Master Station and VS-900MS connection ........................................... 26

12.3.2. External recording device and VS-900MS connection .......................... 28

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12.4. MS-900 Master Station Connection and Adjustment

12.4.1. External speaker connection ................................................................. 29

12.4.2. Internal speaker volume and microphone sensitivity adjustment .......... 29

12.5. VS-900AL Telephone Interface Card Connection

12.5.1. Telephone and VS-900AL connection .................................................. 30

12.5.2. External recording device and VS-900AL connection ........................... 32

12.6. VS-900RS Substation Interface Card Connection

12.6.1. Substation and VS-900RS connection .................................................. 33

12.6.2. External amplifier and VS-900RS connection ....................................... 34

12.7. VS-910RS Substation Interface Card Connection ............................................ 35

12.8. VS-900CO Outside Line Interface Card Connection

12.8.1. Outside line and VS-900CO connection ............................................... 36

12.8.2. External recording device and VS-900CO connection .......................... 37

12.9. VS-900AF Audio Function Card Connection

12.9.1. Amplifier and VS-900AF connection ..................................................... 38

12.9.2. External sound source and VS-900AF connection ............................... 39

12.10. VS-900TI Tie-Line Interface Card Exchange Interconnection .......................... 40

12.11. VS-900SC Site Connector Connection

12.11.1. Exchange connection example ........................................................... 43

12.11.2. Power supply connection .................................................................... 43

12.11.3. Connection to the VS-900TI ................................................................ 44

12.11.4. Connecting the VS-900SC to another VS-900SC unit ........................ 45

12.11.5. Connection to an optical/audio signal converter ................................. 45

12.12. VS-900MF Main Frame and PU-200 Power Transformer Connection ............. 46

13. MAIN FRAME AND PC CONNECTION

13.1. Programming PC Connection

13.1.1. Direct connection by means of RS-232C .............................................. 47

13.1.2. Connection via modem ......................................................................... 48

13.2. Operation Log PC Connection

13.2.1. Direct connection by means of RS-232C .............................................. 49

13.2.2. Connection via modem ......................................................................... 50

13.3. System Programming ....................................................................................... 50

14. SPEECH AND FUNCTION TESTS

14.1. Speech Test ...................................................................................................... 51

14.2. Function Test .................................................................................................... 51

15. SPECIFICATIONS

VS-900MF Main Frame .............................................................................................. 52

VS-900MS Master Station Interface Card .................................................................. 52

VS-900AL Telephone Interface Card ......................................................................... 53

VS-900RS Substation Interface Card ........................................................................ 53

VS-910RS Substation Interface Card ........................................................................ 54

VS-900CO Outside Line Interface Card ..................................................................... 54

VS-900AF Audio Function Card ................................................................................. 55

VS-900TI Tie-line Interface Card ............................................................................... 55

VS-900SC Site Connector ......................................................................................... 56

YC-303 Main Frame Wall Mounting Bracket .............................................................. 56

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When Installing the Unit

[Applicable to the exchange and the station]

• Do not expose the unit to rain or an environment
where it may be splashed by water or other liquids,
as doing so may result in fire or electric shock.

• Do not cut, kink, otherwise damage nor modify the
power supply cord and connection cord. In
addition, avoid using the cords in close proximity to
heaters, and never place heavy objects -- including
the unit itself -- on the cords, as doing so may
result in fire or electric shock.

[Applicable to the exchange]

• Use the unit only with the voltage specified on the
unit. Using a voltage higher than that which is
specified may result in fire or electric shock.

• Be sure to ground to the safety ground (earth)
terminal to avoid electric shock. Never ground to a
gas pipe as a catastrophic disaster may result.

• Owing to the unit's size and weight, be sure that at
least two persons are available to install the unit.
Failure to do so could result in personal injury.

• (When mounted on a wall)
Refer all installation work to the dealer from whom
the unit was purchased. Installation requires
extensive technical knowledge and experience.
The unit may fall off if incorrectly installed, resulting
in possible personal injury.

• (When mounted on a wall)

Install the unit only in a location that can
structurally support the weight of the unit and the
mounting bracket. Doing otherwise may result in
the unit falling down and causing personal injury
and/or property damage.

When the Unit is in Use

[Applicable to the exchange]

• Should the following irregularity be found during
use, immediately switch off the power, disconnect
the power supply plug from the AC outlet and
contact your nearest TOA dealer. Make no further
attempt to operate the unit in this condition as this
may cause fire or electric shock.

· If you detect smoke or a strange smell coming

from the unit.

· If water or any metallic object gets into the unit

• To prevent a fire or electric shock, never open nor
remove the unit case as there are high voltage
components inside the unit. Refer all servicing to
your nearest TOA dealer.

• Do not place cups, bowls, or other containers of
liquid or metallic objects on top of the unit. If they
accidentally spill into the unit, this may cause a fire
or electric shock.

• Do not touch the power cord during thunder and
lightning, as this may result in electric shock.

WARNING

Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.

Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.

WARNING
CAUTION

1. SAFETY PRECAUTIONS

• Before installation or use, be sure to carefully read all the instructions in this section for correct and safe
operation.

• Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or
cautions regarding safety.

• After reading, keep this manual handy for future reference.

Safety Symbol and Message Conventions

Safety symbols and messages described below are used in this manual to prevent bodily injury and property
damage which could result from mishandling. Before operating your product, read this manual first and
understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards.

5

When Installing the Unit

[Applicable to the exchange and the station]

• Avoid installing the unit in humid or dusty locations,
in locations exposed to the direct sunlight, near the
heaters, or in locations generating sooty smoke or
steam as doing otherwise may result in fire or
electric shock.

[Applicable to the exchange]

• Do not block the ventilation slots in the unit's cover.
Doing so may cause heat to build up inside the unit
and result in fire.

When the Unit is in Use

[Applicable to the exchange]

• Do not place heavy objects on the unit as this may
cause it to fall or break which may result in
personal injury and/or property damage. In
addition, the object itself may fall off and cause
injury and/or damage.

• Contact your TOA dealer as to the cleaning. If dust
is allowed to accumulate in the unit over a long
period of time, a fire or damage to the unit may
result.

CAUTION

6

WARNING (For U.S.A. only)

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions manual, may cause interference to radio communications. It
has been tested and found to comply with the limits for a Class A computing device pursuant to
Subject J of Part 15 of the FCC Rules, which are designed to provide reasonable protection such
interference when operated in a commercial environment.
Operation of this equipment in a residential area is likely to cause interference, in which case the user
at his own expense will be required to take whatever measures may be required to correct the
interference.

2. FCC REQUIREMENTS

(1) This equipment compiles with Part 68 of the FCC rules. On the front panel of this equipment is a label that

contains, among other information, the FCC registration number and ringer equivalence number (REN) for
this equipment. If requested, this information must be provided to the telephone company.

(2) USOC Jack RJ11C or RJ11W

(3) This Equipment is designed to be connected to the telephone network or premises wiring using a

compatible modular jack that is Part 68 compliant. See this manual (VS-900 INSTALLATION MANUAL)
for details.

(4) The REN is used to determine the quantity of devices that may be connected to the telephone line.

Excessive REN's on the telephone line may result in the devices not ringing in response to an incoming
call. Typically, the sum of REN's should not exceed five (5.0). To be certain of the number of devices that
may be connected to a line (as determined by the total REN's), contact the local telephone company.

(5) If this equipment VS-900 causes harm to the telephone network, the telephone company will notify you in

advance that temporary discontinuance of service may be required. But if advance notice isn't practical,
the telephone company will notify the customer as soon as possible. Also, you will be advised of your right
to file a complaint with the FCC if you believe it is a necessary.

(6) The telephone company may make changes in it's facilities, equipment, operations, or procedures that

could affect the operation of the equipment. If this happens, the telephone company will provide advance
notice in order for you to make the necessary modifications in order to maintain uninterrupted service.

(7) If trouble is experienced with this equipment VS-900, please contact TOA Electronics, Inc., 601 Gateway

Boulevard, Suite 300, South San Francisco, CA. 94080, phone [phone] for repair and warranty
information. If the trouble is causing harm to the telephone network, the telephone company may request
you remove the equipment from the network until the problem is resolved.

(8) This equipment may not be used on coin service provided by the telephone company. Connection to party

lines is subject to state tariffs.

(9) This equipment is hearing aid compatible.

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3. INDUSTRIAL CANADA REQUIREMENTS

EQUIPMENT ATTACHMENT LIMITATIONS

"NOTICE: The Industry Canada label identifies certified equipment. This certification means that the
equipment meets telecommunications network protective, operational and safety requirements as prescribed
in the appropriate Terminal Equipment Technical Requirements document(s). The Department does not
guarantee the equipment will operate to the user's satisfaction.

Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of
the local telecommunications company. The equipment must also be installed using an acceptable method of
connection. The customer should be aware that compliance with the above conditions may not prevent
degradation of service in some situations.

Repairs to certified equipment should be coordinated by a representative designated by the supplier. Any
repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the
telecommunications company cause to request the user to disconnect the equipment.

Users should ensure for their own protection that the electrical ground connections of the power utility,
telephone lines and internal metallic water pipe system, if present, are connected together. This precaution
may be particularly important in rural areas.
Caution: Users should not attempt to make such connections themselves, but should contact the appropriate
electric inspection authority, or electrician, as appropriate."

"NOTICE: The Ringer Equivalence Number (0.4) assigned to each terminal device provides an indication of
the maximum number of terminals allowed to be connected to a telephone interface. The termination on an
interface may consist of any combination of devices subject only to the requirement that the sum of the Ringer
Equivalence Numbers of all the devices does not exceed 5."

RESTRICTIONS CONCERNANT LE RACCORDEMNT DE MATÉRIEL

"AVIS: L'étiquette d'Industrie Canada identifie le matériel homologué. Cette étiquette cetifie que le matériel est
conforme aux normes de protection, d'exploitation et de sécurité des réseaux de télécommunications, comme
le prescrivent les documents concernant les exigences techniques relatives au matériel terminal. Le Ministère
n'assure toutefois pas que le matériel fonctionnera à la satisfaction de l'utilisateur.

Avant d'installer ce matériel, l'utilisateur doit s'assurer qu'il est permis de le raccorder aux installations de
l'entreprise locale de télécommunication. Le matériel doit également être installé en suivant une méthode
acceptée de raccordement. L'abonné ne doit pas oublier qu'il est possible que la conformité aux conditions
énoncées ci-dessus n'empêche pas la dégradation du service dans certaines situations.

Les réparations de matériel homologué doivent être coordonnées par un représentant désigné par le
fournisseur. L'entreprise de télécommunications peut demander à l'utilisateur de débrancher un appareil à la
suite de réparations ou de modifications effectuées par l'utilisateur ou à cause de mauvais fonctionnement.

Pour sa propre protection, l'utilisateur doit s'assurer que tous les fils de mise à la terre de la source d'énergie
électrique, des lignes téléphoniques et des canalisations d'eau métalliques, s'il y en a, sont raccordés
ensemble. Cette précaution est particulièrement importante dans les régions rurales.
Avertissement: L'utilisateur ne doit pas tenter de faire ces raccordements lui-même; il doit avoir recours à un
service d'inspection des installations électriques, ou à un électricien, selon le cas."

"AVIS: L'indice d'équivalence de la sonnerie (0.4) assigné à chaque dispositif terminal indique le nombre
maximal de terminaux qui peuvent être raccordés à une interface. La terminaison d'une interface téléphonique
peut consister en une combinaison de quelques dispositifs, à la seule condition que la somme d'indices
d'équivalence de la sonnerie de tous les dispositifs n'excède pas 5."

This Class A digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

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4. GENERAL DESCRIPTION

The VS-900 Security System is a voice communication system that permits calls to be quickly and easily
made - even in emergency situations - with the touch of single button. The system can record conversations,
and features external equipment sync output and operation log output. These features combine to make the
VS-900 an ideal system for voice security applications.

5. FEATURES

• Modular construction facilitates installation, maintenance, and system expansion.

• Rack- or wall-mountable exchange.

• Up to 4 master stations (or commercial telephone sets) and 64 substations can be connected per exchange.

• Up to 2 outside telephone (C/O) lines can be connected per exchange.

• Station paging (by means of the substation speaker) and external paging functions.

• External sound source distribution capability.

• Up to 19 paging zones can be established.

• Emergency Paging function.

• By connecting an external recording device, the conversations at the master station (or telephone set) and
at the outside line telephone can be recorded.

• Exchange operating log can be transmitted to a PC.

• Tie-line possible for up to 16 exchanges.

• 24 V DC input for connection of backup power supply.

• Manual/Automatic Call Forwarding, Conference, Scan Monitor functions.

6. INSTALLATION PRECAUTIONS

• Make sure that the power is switched OFF during installation work. Switch on the power after the installation
work is completed.

• To prevent the unit's failure, be sure to switch off its power when inserting or removing the card.

• When mounting each card, fully insert it into the Main Frame. After all cards are mounted, secure them with
the card fixing bracket.

• Do not use the unit near heaters or in locations exposed to sunlight. The unit's plastic parts may be
deformed or its finish discolored.

• Avoid installing the unit in humid or dusty locations, as doing otherwise may cause the unit's failure.

• When the unit gets dirty with dust or oil, wipe down with a soft, dry cloth. Never use a chemically-treated
cleaning cloth or volatile liquids, such as benzine and thinner, because the unit's plastic parts may be
deformed or its finish discolored.

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7. SYSTEM CONFIGURATION AND EQUIPMENT FUNCTIONS

7.1. System Configuration

VS-900 Exchange (1)

Rack Mount Panel
PN-100B

Power Transformer
Uint PU-200

Power Transformer
Uint PU-200

Main Frame VS-900MF/
Main Frame Mounting
Bracket YC-303

Master Station
Interface Card
VS-900MS (1)

Telephone Interface
Card VS-900AL (2)

Substation Interface
Card VS-900RS (1)

Substation Interface
Card VS-910RS (4)

Outside Line
Interface Card
VS-900CO

Master station MS-900 (2 units)

Recording voice output (for each station)

Recording control output (for each station)

Telephone (2 units)

Recording voice output (for each telephone)

Recording control output (for each telephone)

Substation RS-150, RS-160, RS-170 or
RS-180 (16 units)

Paging output (to an amplifier)

Paging input (from an amplifier)

Full-duplex substation RS-190* (16 units)
* The RS-191 is connectable.

Outside line (2 lines)

Recording voice output (for each line)

Recording control output (for each line)

VS-900 Exchange (2)

VS-900 Exchange (16)

Audio Function Card
VS-900AF

Tie-line Interface
Card VS-900TI

External paging voice output
External paging control output (16 channels)
Voice input for external source distribution
Control input for external source distribution

(4 channels)

Input and output for exchange interconnection
(4 voice lines, 1 data line)

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7.2. Equipment Functions

• VS-900MF Main Frame
The VS-900MF accommodates the following cards: Up to 2 VS-900MS or VS-900AL Cards (both cards may

be mixed), up to 4 VS-900RS or VS-910RS Cards (both cards may be mixed), 1 VS-900CO Card, 1 VS­900AF Card, and 1 VS-900TI Card.
The Main Frame has 2 RS-232C ports; one for programming and the other for operation log output.

• VS-900MS Master Station Interface Card
The VS-900MS is used for master station connection. Up to 2 master stations can be connected per card,

and an external recording device can be connected to each line.

• VS-900AL Telephone Interface Card
The VS-900AL is used for connecting telephone sets (in compliance with the FCC Regulation Part 68). Up to

2 telephones can be connected per card, and an external recording device can be connected to each line.

• VS-900RS Substation Interface Card
The VS-900RS is used for substation connection. Up to 16 substations can be connected per card. The

Substation Interface Card has 2 speech links, one of which also functions as a paging link with the paging
input/output connected to an external amplifier.

• VS-910RS Substation Interface Card
The VS-910RS is used for connecting full-duplex substations and option handsets. Up to 16 substations can

be connected per card. The Substation Interface Card has 2 speech links, one of which also functions as a
paging link with the paging input/output connected to an external amplifier.

• VS-900CO Outside Line Interface Card
The VS-900CO is used for outside line connection. Up to 2 outside lines can be connected per card, and an

external recording device can be connected to each line.

• VS-900AF Audio Function Card
The VS-900AF enables Conference, External Amplifier Paging, and External Source Distribution functions.

The Audio Function Card has 1 conference link (maximum 4 stations), 1 audio output and 16 control outputs
for external amplifier paging, and 1 audio input and 4 control inputs for external source distribution.

• VS-900TI Tie-Line Interface Card
The VS-900TI is used to interconnect multiple exchanges. The Tie-Line Interface Card can connect up to 4

links made up by 1 pair of data lines and 2 pairs of voice lines.

• VS-900SC Site Connector
When tie-line connecting VS-900 system exchanges, fiber optic cables can be used to extend the audio line

longer than the maximum distance* possible using twisted pair cable. TOA's VS-900 Site Connector is used
to connect the VS-900 system exchanges to the fiber optic interface as shown in the following figure.

* 1.5 km when an AWG20 twisted pair cable is used.

• PU-200 Power Transformer Unit
The wall-mountable PU-200 has 2 20V/2.5A AC outputs. One PU-200 unit is required when up to 2

VS-900RS Cards are installed, and 2 PU-200 units are required when 3 or more VS-900RS Cards are
installed.

• YC-303 Main Frame Wall Mounting Bracket
The YC-303 is used when mounting the main frame on the wall.

• PN-100B Rack Mount Panel
The PN-100B provides side-by-side rack mounting capability for up to 2 PU-200 transformer units.

• MS-900 Master Station
The MS-900 can make calls to or receive calls from the substation. It utilizes 2 pairs of twisted cables.

• RS-150 Substation (Indoor Type)
The RS-150 can call and converse with the registered master stations. It utilizes a single-pair shielded cable.

11

• RS-160 Substation (Indoor Vandal-Resistant Type)
The RS-160 can call and converse with the registered master stations. It utilizes a single-pair shielded cable.

• RS-170 Substation (Outdoor Vandal-Resistant Type)
The RS-170 can call and make converse with the registered master stations. It utilizes a single-pair shielded

cable.

• RS-180 Substation (for Emergency Use)
The RS-180 can call and converse with the registered master stations. It has an indicator lamp and a control

output channel, and utilizes a single-pair shielded cable.

• RS-190 Substation (Full-Duplex Type)
The RS-190 can call and converse with the registered master stations. It has an indicator lamp and a control

output channel, and utilizes 2 pairs of twisted cables.

• RS-191 Option Handset (Indoor Type)
The RS-191 is used in combination with the RS-190. Lifting the handset permits handset conversation.

12

8. VS-900MF MAIN FRAME NOMENCLATURE AND FUNCTIONS

1. AC Input Connectors

Connect to the AC output terminal of the PU-200
power transformer unit. (See p. 46.)

2. 24 V DC Input Connector

Connects to a battery (24 V DC). (See p. 46.)

3. Power Switch

Power is switched on (I) and off (O) with each
depression of this switch.

4. Backup Battery Socket

Insert the CR2032 data backup battery into this
socket. (See p. 22.)

5. VS-900MS/VS-900AL Installation Slot
[MS/AL 1 – 2]

A maximum of 2 VS-900MS or VS-900AL cards
can be installed. (See p. 27 and 32.)

6. VS-900RS/VS-910RS Installation Slot
[RS 1 – 4]

A maximum of 4 VS-900RS or VS-910RS cards
can be installed. (See p. 33.)

7. VS-900CO Installation Slot [CO]

One VS-900CO card can be installed.
(See p. 36.)

8. VS-900AF Installation Slot [AF]

One VS-900AF card can be installed.
(See p. 38.)

9. VS-900TI Installation Slot [TI]

One VS-900TI card can be installed. (See p. 40.)

10. Programming PC Connector [RS-232C]

Connects to the programming PC either directly
or via modem. (See p. 47.)

11. Operation Log PC Connector [RS-232C]

Connects to the operation log PC either directly
or via modem. (See p. 49.)

12. Power Indicator

Lights when the power switch is set to ON.

13

9. INSTALLATION AND CONNECTION PROCEDURES

(1) System Design

Exchange/Station Configuration, Wiring Schedule and Station Numbering Schedule

(2) Equipment Installation

Installing the VS-900MF Main Frame in an Equipment Rack or on a Wall

Installing the PU-200 Power Transformer in an Equipment Rack or on a Wall (See p. 16.)

(See p. 14.)

Installing the Substation and the Option Handset

Installing the Master Station (See p. 20.)

Installing the Site Connector (See p. 21.)

(3) Installing a Card in the VS-900MF Main Frame

Installing the Data Backup Battery

Installing and Connecting Each Card (See p. 23.)

(4) Connecting the Station/Outside Line to Each Exchange Card

• MS-900 Master Station vs. VS-900MS Card

• External Recording Device vs. VS-900MS Card

• Telephone vs. VS-900AL Card

• External Recording Device vs. VS-900AL Card

• Substation vs. VS-900RS Card

• External Amplifier vs. VS-900RS Card

• Full-Duplex Substation vs. VS-910RS Card (See p. 35.)

• Outside Line vs. VS-900CO Card

• External Recording Device vs. VS-900CO Card

• External Amplifier vs. VS-900AF Card

• External Recording Device vs. VS-900AF Card

(See p. 18 and 19.)

(See p. 22.)

(See p. 26.)
(See p. 28.)

(See p. 30.)
(See p. 32.)

(See p. 33.)
(See p. 34.)

(See p. 36.)
(See p. 37.)

(See p. 38.)
(See p. 39.)

VS-900MF Main Frame vs. PU-200 Power Transformer

(5) Tie-Line Connection (between Exchanges)

VS-900TI vs. VS-900TI

VS-900SC

(6) Connecting the VS-900MF Main Frame to a PC

Connection to a Programming PC

Connection to an Operation Log PC (See p. 49.)

Power-ON

(7) Adjusting the Station and Exchange

System Programming (See the "VS-900 SETUP SOFTWARE MANUAL.")

Master Station Microphone Sensitivity/Speaker Volume Adjustment (See p. 29.)

Telephone Volume Adjustment (VS-900AL Card) (See p. 31.)

(8) Speech and Function Tests

Speech Test

Function Test (See p. 51.)

(See p. 46.)

(See p. 40.)

(See p. 43.)

(See p. 47.)

(See p. 51.)

14

10. EQUIPMENT INSTALLATION

10.1. VS-900MF Main Frame

10.1.1. Rack mounting

Step 1. Attach the supplied rack mounting brackets to the frame.

Step 2. Mount the frame to an equipment rack.

Mounting bracket (accessory)

Fiber washer (8 places)
(accessory)

Machine screw M4 x 10 (6 places)
(accessory)

Rack mounting screw (tapping screw 5 x 12, 8 places)
(accessory)

15

10.1.2. Wall mounting (Optional YC-303 Wall Mounting Frame is required.)

Step 1. Mount the YC-303 bracket to the wall.

Step 2. Remove the VS-900MF's front panel, then mount the VS-900MF on the YC-303.

78 78 78 55.2

Knockout (for wiring)

391.4

440.6

Wood screw 5.1 x 38
(accessory)

Mounting dimensions

290

Unit: mm

30

200

141.3

Tapping screw 4 x 12
(supplied with the YC-303)

16

10.2. PU-200 Power Transformer Unit

10.2.1. Rack mounting

Step 1. Remove the 4 mounting screws, and attach the supplied wall mounting brackets to the transformer

unit using the removed screws.

Step 2. Attach the PU-200 to the PN-100B Rack Mount Panel.

Step 3. Mount the PN-100B in an equipment rack.

Note

Perform terminal wiring before mounting.

Wall mounting bracket (accessory)

Mounting screw

PN-100B

Flange nut M3

(supplied with the PN-100B)

PU-200

Fiber washer
(supplied with the PN-100B)

Machine screw M3 x 8
(supplied with the PN-100B)

Binding head self tapping screw 5 x 12
(supplied with the PN-100B)

17

10.2.2. Wall mounting

Step 1. Remove the 4 mounting screws, and attach the supplied wall mounting brackets to the transformer

using the removed screws.

Step 2. Fix the unit on the wall. Use the supplied wood screws (3.5 x 25) as appropriate for mounting.

Wall mounting bracket (accessory)

Mounting screw

140

Wood screw 3.5 x 25

(accessory)

120

Unit: mm

11525

18

10.3. RS-150, RS-160, RS-170, RS-180 and RS-190 Substations

Mount the substation to an electrical box mounted in the wall.

Dimensional diagram

Accessory screws

The RS-150, RS-160, RS-170, RS-180 and RS-190 come with 2 types of screws: oval head combination
screw M4 x 25 and oval head slotted screw UNC No.6 x 18.
For the electrical box provided with unified threads, use the oval head slotted screws UNC No.6 x 18.

2-gang electrical box
YC-302 (optional)

RS-150/-160/-170/-180/-190

Oval head combination screw
M4 x 25 (accessory)

Unit: mm

120

83.5

1

46

120

37

18.2

52.5

*

2, *3

1

3

*

2 (RS-150, RS-190)

*

2

43.5 (RS-150)

*

3

53 (RS-190)

*

19

10.4. RS-191 Option Handset (Indoor type)

10.4.1. Wall mounting

Mount the option handset to an electrical box mounted in the wall.

10.4.2. RS-190 and RS-191 connection

Plug out the jumper from the connector on the RS-190's side panel, then plug the RS-191's connection cable
instead as illustrated below.

Accessory screws

The RS-191 comes with 2 types of screws: oval head
combination screw M4 x 25 and oval head slotted screw
UNC No.6 x 18.
For the electrical box provided with unified threads, use
the oval head slotted screws UNC No.6 x 18.

2-gang electrical box
YC-302 (optional)

Oval head combination screw
M4 x 25 (accessory)

RS-191

Connection cable

RS-191

RS-190

Jumper

20

10.5. Master Station

10.5.1. Desk-top mounting

Connect the supplied modular-plug cord.

10.5.2. Wall mounting

Pull out, rotate, and reset the cradle hook, then mount the station on the wall using the supplied wall mounting
frame. Use the supplied wood screws as appropriate.

Remove the cradle hook.

Cradle hook

Pull out the cradle hook, then
replace it after changing the
direction as illustrated.

Wood screw 3.5 x 25
(supplied with the MS-900)

21

10.6. VS-900SC Site Connector

10.6.1. Rack mounting

10.6.2. Mounting to the VS-900MF

10.6.3. Wall mounting

* Use the supplied wood screws as

appropriate.
When using them, mount the unit to
wooden walls stronger than plywood of
over 12 mm in thickness.

VS-900SC

POWER

SITE CONNECTOR VS-900SC

Tapping screw 3 x 12 (accessory)

Rack-mounting bracket (accessory)

Fiber washer M5 (accessory)

Rack mounting screw 5 x 12 (accessory)

VS-900SC

POWER

SITE CONNECTOR VS-900SC

Link plate (accessory)

VS-900MF

Tapping screw 3 x 12 (accessory)

Screw 4 x 12 (accessory)

VS-900SC

Wall-mounting bracket (accessory)

Tapping screw 3 x 12 (accessory)

Wood screw 4.1 x 20 (accessory) *

22

11. VS-900MF CARD INSTALLATION

11.1. Backup Battery Installation

Caution

All cards contain many CMOS ICs which are easily damaged by static electricity. Do not touch circuit
components.

• Insert the backup battery into the Main Frame mother board before installing any cards.

CR2032

BATT1

VS-900MF

Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer's instructions.

CAUTION

Danger d'explosion lorsque la batterie n'est pas remplacée correctement.
Remplacer uniquement avec des batteries identiques ou d'un type équivalent.

ATTENTION

Battery replacement

As the battery life is rated at about 4 years, replace it with a new one every 4 years.
Follow the replacement procedure below.

Step 1. Switch the Main Frame (VS-900MF) power off.
Step 2. Remove all installed cards.
Step 3. Switch the VS-900MF power on.
Step 4. Replace the battery.
Step 5. Switch the VS-900MF power off.
Step 6. Reinstall the removed cards.
Step 7. Switch the VS-900MF power on.

Important

Be sure to replace the battery while the VS-900MF power is on.
Otherwise, stored date and time data will be lost.

23

11.2. Card Installation

Step 1. Remove each card from its static-protective bag, and install it in its designated position in the Main

Frame.

• For the VS-900TI, perform exchange number setting BEFORE installation. Refer to p. 42 "Exchange
Number Setting."

Step 2. After installing all cards, secure them using the supplied fixing bracket.

The top and side panels are omitted to
show the hidden parts.

24

12. WIRING

12.1. Wiring from the Station or Outside Line

Step 1. Remove the main frame's bottom panel as shown below.

Step 2. Connect stations or outside lines to their respective cards as shown below.

25

12.2. Supplied Connector Connection

Use the supplied connectors for exchange connections as follows.

Step 1. Insert a cable into the connector and tighten the screw.

Step 2. After cable connection is completed, press the connector onto the circuit board's connector.

26

12.3. VS-900MS Master Station Interface Card Connection

12.3.1. Master Station and VS-900MS connection

• The VS-900MS can be interfaced with up to 2 MS-900 master stations.

• Because up to 2 VS-900MS cards can be mounted in the VS-900MF Main Frame, up to four master stations
can be connected per frame.

• A station address must be assigned to each connected MS-900 station. Set the station address at each MS­900 station after switching ON the power.

[Station Address Setting]

Step 1. Set the Master Station's REGISTER switch to the ON position. The "Reg_mode" indication will be

displayed on the station screen.

Step 2. Press the [XFER] key.

Step 3. According to the following table, enter the station address 1 – 4 through the use of a numeric keypad.

VS-900MS Line Station Address

MS/AL Slot 1

11
22

MS/AL Slot 2

13
24

Step 4. Press the [PTT] key.

Step 5. Set the REGISTER switch to the OFF position to places the station in standby mode.

A

Numeric keys
[0] – [9]

View

ABC

DEF

12

2

13

JKL4GHI6MNO

34

5

TUV7PRS9WXY

56

8

OPER

78

0

#

P T T REDIAL XFER

C

Display panel

Transfer [XFER] key

Press-to-talk [PTT] key

[View ]

A

HANDSET

REGISTER

Do not connect thei jack
to telephone line.

SP. VOL.

OFF ON

MINI. MAX.

LINE

Registration ON/OFF switch
[REGISTER ON/OFF]

27

[Connection]

• Connect the MS-900 to the VS-900MS using 2 twisted pair cables as shown below referring to the following
procedures.

1. Fit the 4P connector (supplied with the VS-900MS) to one cable end, and a 6-position 4-contact modular

jack (prepare locally) to the other cable end.

2. Connect the modular jack to the MS-900's modular jack using the modular cord (supplied with the MS-900).

• The table below shows the maximum cable distance.

Cable type AWG24 (0.52 mm) AWG22 (0.65 mm) AWG20 (0.82 mm)

Distance 0.9 km 1.5 km 2.3 km

Connect as shown below.

VS-900MS and MS-900 connection

* Mount the ferrite clamp (supplied with the VS-900MS card)

on the cable in a way that the cable is looped one turn as
illustrated. (This countermeasure is for complying with the
CE marking and FCC requirements.)

Note

When using a shielded cable, connect the shielded wire to the "FG" terminal of the exchange main frame.
Also, connect the unused cables, if included in a bundle of cables, to the same terminal.

Ferrite clamp *

2 twisted pair cables

VS-900MS

CN1

Line 1

for master station

1
2
3
4

LINE

1234

Modular cord
(supplied with
the MS-900)

2 twisted pair cables

LINE

1234

Modular cord
(supplied with the MS-900)

Ferrite clamp *

CN2

CN3

CN4

Line 2

for master station

Front view of
the circuit board

1
2
3
4

Ferrite clamp
SFC-10

VS-900MS card

28

12.3.2. External recording device and VS-900MS connection

An external recording device can be connected to each master station line.

[Connection]

To connect the external recording device, use a twisted pair cable for audio output, and a twisted pair cable
for control output. The audio output is 0 dB* and of unbalanced type. The control output is an open collector
output 20 mA, 24 V DC max. Connect as shown below.

* 0 dB = 1 V

External recording device and VS-900MS connection

VS-900MS

CN1

To audio input (HOT)

To audio input (GND)

To recording start input (HOT)

To recording start input (GND)

Recording device

Recording device

2 twisted pair cables

2 twisted pair cables

CN2

CN3

CN4

Line 1 for
recording

Line 2 for

recording

Front view of
the circuit board

HOT

Audio output

GND
HOT

Control output

GND

HOT

Audio output

GND
HOT

Control output

GND

29

12.4. MS-900 Master Station Connection and Adjustment

12.4.1. External speaker connection

Follow the procedures below when connecting an external speaker (8 Ω).

Step 1. Remove the MS-900's rear terminal cover and set the internal slide switch to the [EXT. SP] position.

Terminal cover

EXT.SP terminal

Microphone sensitivity control

Internal speaker volume control

Internal/External speaker selection switch

Step 2. Connect the speaker cable to EXT.SP terminal.

Speaker cable

12.4.2. Internal speaker volume and microphone sensitivity adjustment

The MS-900's internal speaker volume and microphone sensitivity can be adjusted by means of their
respective controls located under the terminal cover described above. Both controls are factory-preset to their
maximum positions.

Step 3. Replace the removed terminal cover in place.

30

12.5. VS-900AL Telephone Interface Card Connection

12.5.1. Telephone and VS-900AL connection

The VS-900AL can be interfaced with up to 2 commercial telephone sets. Use the telephone which complies
with the FCC Regulation Part 68.

[Connection]

To connect the telephone set to the VS-900AL, use a twisted pair cable. The connector of the cable end going
to the telephone needs to be the type that can be connected to the telephone connector. Perform wiring as
shown below so that the loop resistance is less than 500 Ω including the telephone resistance.

Telephone and VS-900AL connection

VS-900AL

CN1

CN2

CN3

CN4

1 twisted pair cable

1 twisted pair cable

Telephone set

Telephone set

Line 1

for telephone

Line 2

for telephone

Front view of 
the circuit board

Ferrite clamp *

Ferrite clamp *

* Mount the ferrite clamp (supplied with the VS-900AL card) on the cable in a way that the cable is looped one

turn as illustrated. (This countermeasure is for complying with the CE marking and FCC requirements.)

Note

When using a shielded cable, connect the shielded wire to the "FG" terminal of the exchange main frame.
Also, connect the unused cables, if included in a bundle of cables, to the same terminal.

Ferrite clamp
SFC-10

VS-900AL card

31

[Setting telephone's talking volume levels]

When the talking volume is low, set it using the switch SW101 (for Line 1) or SW201 (for Line 2) on the VS­900AL card as illustrated below.

Setting of telephone volume switches on the VS-900AL card

VS-900AL

SW101

SW201
D210

D110

CN1

Telephone
volume
switch

Telephone's talking volume (Line 1)

Telephone's talking volume (Line 2)

Front view of 
the circuit board

12

ON

12

ON

12

ON

Telephone's talking volume setting

Volume "low"

(Factory-preset)

Volume "middle"Volume "high"



32

12.5.2. External recording device and VS-900AL connection

An external recording device can be connected to each telephone line.

[Connection]

To connect the external recording device, use a twisted pair cable for audio output, and a twisted pair cable
for control output. The audio output is 0 dB* and of unbalanced type. The control output is an open collector
output of 20 mA, 24 V DC max. Connect as shown below.

* 0 dB = 1 V

External recording device and VS-900AL connection

VS-900AL

CN1

To audio input (HOT)

To audio input (GND)

To recording start input (HOT)

To recording start input (GND)

Recording device

Recording device

2 twisted pair cables

2 twisted pair cables

CN2

CN3

CN4

Line 1 for
recording

Line 2 for

recording

Front view of
the circuit board

HOT

Audio output

GND
HOT

Control output

GND

HOT

Audio output

GND
HOT

Control output

GND

33

12.6. VS-900RS Substation Interface Card Connection

12.6.1. Substation and VS-900RS connection

The VS-900RS can be interfaced with up to 16 substations.

[Connection]

Use a 2-core shield cable to connect the substation to the VS-900RS. Refer to the following table for the
maximum recommended cable length between the two.

Cable type AWG24 (0.52 mm) AWG22 (0.65 mm) AWG20 (0.82 mm)

Distance 0.5 km 0.8 km 1.3 km

Connect as shown below.

Connection of the RS-150/-160/-170/-180 to the VS-900RS

RS-150, RS-160,
RS-170 or RS-180

To line A (orange)

To line B (brown)

To line C (black)

2-core shielded cable

2-core shielded cable

VS-900RS

CN1

CN2

CN3

CN4

Line 1

Line 2

Line 5

Line 6

Line 9

Line 10

Line 13

Line 14

Line 3

Line 4

Line 7

Line 8

Line 11

Line 12

Line 15

Line 16

A
B
C
A
B
C

A
B
C
A
B
C

A
B
C
A
B
C

A
B
C
A
B
C

A
B
C
A
B
C

A
B
C
A
B
C

A
B
C
A
B
C

A
B
C
A
B
C

Front view of
the circuit board

Note

The cables coming from the substations are bared at their ends.

34

12.6.2. External amplifier and VS-900RS connection

Electrical characteristics of the CN5 connector

Voice output: Unbalanced, –20 dB*2signals to be sent to a paging amplifier
Voice input: Balanced, acceptable signals on the 25 V line output from a paging amplifier

*1Rated at over 16 W power output (ex. BG-130 30 W amplifier)
*20 dB = 1 V

1-core shielded cable

VS-900RS

GND COM COM 25V 70V4ΩHOT

INPUT OUTPUT

Paging amplifier *

1 twisted pair cable

1

CN5

CN1

Voice output

Voice input

(For paging amplifier)

Front view of
the circuit board

HOT
GND

35

12.7. VS-910RS Substation Interface Card Connection

RS-190 Substation and VS-910RS connection

The VS-910RS can be interfaced with up to 16 RS-190 Substations.

[Connection]

Use 2 pairs of twisted cables to connect the RS-190 and the VS-910RS. Refer to the following table for the
maximum recommended cable length between the two.

Cable type AWG24 (0.52 mm) AWG22 (0.65 mm) AWG20 (0.82 mm)

Distance 1 km 1.5 km 2 km

Connect as shown below.

Note

Never touch the SW301 switch
(factory-preset to OFF) on the
VS-910RS board.

VS-910RS

CN501

CN551

CN601

CN651

CN701

CN751

CN801

CN851

Line 1

Line 3

Line 5

Line 7

Line 9

Line 11

Line 13

Line 15

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

A
B
C
D

Line 2

Line 4

Line 6

Line 8

Line 10

Line 12

Line 14

Line 16

2 twisted pair cables

Lightening protector *

A
B

C
D

RS-190

A
B

C
D

Lightening protector *

* In case of outdoor aerial wiring, install the

unit near the VS-910RS.

Note

The cable length for outdoor wiring must not
exceed 42 m (140 feet).
The wiring installation shall refer to NEC
Articles 725 and 800.

Front view of
the circuit board

SW301

VS-910RS

36

12.8. VS-900CO Outside Line Interface Card Connection

12.8.1. Outside line and VS-900CO connection

The VS-900CO can be interfaced with up to 2 outside lines. Using DTMF tone dialing, it is compatible with
both loop and ground start systems.

[Connection]

Connect as shown below.

Outside line and VS-900CO connection

1 twisted pair cable

1 twisted pair cable

VS-900CO

CN1

CN2

CN3

CN4

GND *1
GND

Front view of 
the circuit board

Outside line

Line 1

GND *

1

GND

Outside line

Line 2

Lightening
protector *

2





Lightening
protector *

2





U.S.O.C. *

3

RJ11C or W

C/O Line 1
(or PBX
Extension)

C/O Line 2
(or PBX
Extension)

*1Ground this terminal only when using ground start system.
*2Install a protector if not yet installed by the telephone company.
*3This terminal must be installed by the telephone company.

37

12.8.2. External recording device and VS-900CO connection

An external recording device can be connected to each telephone line.

[Connection]

To connect the external recording device, use a twisted pair cable for audio output, and a twisted pair cable
for control output. The audio output is 0 dB* and of unbalanced type. The control output is an open collector
output o f 20 mA, 24 V DC max. Connect as shown below.

* 0 dB = 1 V

External recording device and VS-900CO connection

VS-900CO

CN1

To audio input (HOT)

To audio input (GND)

To recording start input (HOT)

To recording start input (GND)

Recording device

Recording device

2 twisted pair cables

2 twisted pair cables

CN2

CN3

CN4

Line 1 for
recording

Line 2 for

recording

Front view of
the circuit board

HOT

Audio output

GND

HOT

Control output

GND

HOT

Audio output

GND

HOT

Control output

GND

38

12.9. VS-900AF Audio Function Card Connection

12.9.1. Amplifier and VS-900AF connection

Paging can be provided through connected external amplifiers using the VS-900AF.

[Connection]

To connect the amplifier to the VS-900AF, use a twisted pair cable for audio output, and a twisted pair cable
for control output. The audio output is 0 dB* and of unbalanced type. The control output is an open collector
output of 20 mA, 24 V DC max., and permits connection of up to 16 channels. Connect as shown below.

* 0 dB = 1 V

External amplifier and VS-900AF connection

To audio input (HOT)

To audio input (GND)

VS-900AF

1 twisted pair cable

Amplifier(1)

Amplifier(2)

To start input (HOT)

To start input (GND)

Amplifier(15)

Amplifier(16)

1 twisted pair cable

CN4

CN5

CN6

CN7

CN8

Audio output

Control output 1

Control output 2

Control output 5

Control output 6

Control output 9

Control output 10

Control output 13

Control output 14

HOT
GND

HOT
GND

HOT
GND

HOT
GND

HOT
GND

HOT
GND

HOT
GND

HOT
GND

HOT
GND

Front view of
the circuit board

HOT

Control output 3

GND
HOT

Control output 4

GND

HOT

Control output 7

GND
HOT

Control output 8

GND

HOT

Control output 11

GND
HOT

Control output 12

GND

HOT

Control output 15

GND
HOT

Control output 16

GND

39

12.9.2. External sound source and VS-900AF connection

The External Sound Source Distribution function can be operated using the VS-900AF.

[Connection]

To connect external sound sources to the VS-900AF, use a twisted pair cable for audio input, and a twisted
pair cable for control input (level-operated activation). The audio input is 0 dB* and of unbalanced type. The
start input is a no-voltage make contact of 20 mA, 24 V DC max. Connect as shown below.

* 0 dB = 1 V

External sound sources and VS-900AF connection

Voice (HOT)

Voice (GND)

Sound source

To control input (HOT)

To control input (GND)

To control output (HOT)

To control output (GND)

Mixer

Sound source

Sound source

Sound source

To audio output (HOT)

To audio output (GND)

4 twisted pair cables

Timer

VS-900AF

CN1

CN2

CN3

Audio input

Control input 1

Control input 2

Control input 3

Control input 4

Front view of
the cicuit board

HOT
GND

HOT
GND

HOT
GND

HOT
GND
HOT
GND

40

12.10. VS-900TI Tie-Line Interface Card Exchange Interconnection

Up to 16 exchanges can be tie-line interconnected using the VS-900TI card.

[Connection]

To interconnect the exchanges, use 2 twisted pair cables for lines, and a 2-core shielded cable for data lines.
A maximum of 4 lines can be connected. Refer to the following table for the maximum recommended length
for each cable type between exchanges.
(As to the cable connection, see the figure on the next page.)

Cable type AWG24 (0.52 mm) AWG22 (0.65 mm) AWG20 (0.82 mm)

Distance 0.6 km 1 km 1.5 km

[Termination resistance setting]

When interconnecting three or more exchanges, change the SJP10 connection on each card as shown below,
with the exception of the cards in the rightmost and leftmost exchanges.

VS-900

VS-900TI

VS-900TI

VS-900TI

VS-900TI

VS-900TI

VS-900

VS-900

VS-900

SJP10

SJP10

SJP10

SJP10

SJP10

CN6

R26

SJP10

SW1

Two twist pair cables (voice line)
A 2-core shielded cable (data line)

Factory-preset status of SJP10 Termination resistance setting when

interconnecting 3 or 4 exchanges

41

Connect as shown below.

Exchange interconnection by means of VS-900TI

2 twisted pair cables

2 twisted pair cables

2 twisted pair cables

VS-900TI

CN1

CN2

CN3

Line 1

Line 2

Line 3

2 twisted pair cables

2-core shielded cable

2 twisted pair cables

2 twisted pair cables

2 twisted pair cables

2 twisted pair cables

CN4

CN6

VS-900TI

CN1

CN2

CN3

CN4

Line 4

Data line
RS-485

Line 1

Line 2

Line 3

Line 4

A

B
GND
GND

2-core shielded cable

CN6

Data line
RS-485

Front view of
the circuit board

A

B
GND
GND

42

[Exchange Number Setting]

When interconnecting the exchanges using the VS-900TI, assign the exchange number to each exchange
with the SW1 switch located on the VS-900TI's circuit board. (Refer to the table below.)

Exchange No. setting

Initial status: Exchange No. 1

VS-900TI

CN6

SW1

18

Exchange No. 1

1
2

3
4
5
6
7
8

OFF

ON

OFF

ON

OFF

ON

OFF

ON

2
OFF
OFF

ON

ON
OFF
OFF

ON

ON

3
OFF
OFF

OFF
OFF

ON
ON

ON
ON

4
OFF
OFF

OFF
OFF
OFF
OFF
OFF
OFF

5 – 8

OFF
OFF

OFF
OFF
OFF
OFF
OFF
OFF

9

10
11
12
13

14
15

16

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF
OFF

ON

ON
OFF
OFF

ON

ON

OFF
OFF

OFF
OFF

ON
ON

ON
ON

ON
ON

ON
ON
ON
ON
ON
ON

OFF
OFF

OFF
OFF
OFF
OFF
OFF
OFF

ON

12345678

43

12.11.1. Exchange connection example

12.11. VS-900SC Site Connector Connection

12.11.2. Power supply connection

Connect the optional PU-200 power transformer unit as shown below:

• For the optical/audio signal converter, prepare one which can transmit a 600 Ω, 0 dBm signal.

• For the optical/digital signal converter, prepare one which can convert an RS-485 signal into an optical
signal.

• Prepare the power source separately.

Connect the backup power supply, if needed, to the VS-900SC's DC input as illustrated.
Note: The backup power supply should be a UL Listed Limited Power Source or Class 2 power supply, rated

24 V DC, 0.2 A.

O.A.L.

PU-200
Power
Transformer
unit

VS-900SC

Power
supply

VS-900TI
Tie-Line unit

VS-900TI
Tie-Line unit

Fiber optic cable Fiber optic cable

O.A.L. O.A.L.

O.A.L.

O.D.L. O.D.L.

O.D.L. O.D.L.

VS-900MF

Audio signal line

VS-900TI
Tie-Line unit

Control signal line

VS-900MF

VS-900MF

* O.A.L. (Optical Analog Link): Optical/audio signal converter

O.D.L. (Optical Data Link):

Optical/digital signal converter

VS-900SC (figure of the inside of the front panel)

+

DC 24V IN

-

FROM

FG

PU-200

DC24 V

PU-200

To AC mains

44

12.11.3. Connection to the VS-900TI

Connect each connector of the unit's Voice Lines 1 – 4 to the corresponding connector on the VS-900TI's CN
1 – 4. Pins No. 1 and 2 of each connector of Voice Lines 1 – 4 are for receiving ends, while pins No. 3 and 4
are for transmitting ends. Use 2 twisted pair cables for connection as shown below.

• For the VS-900TI, cut SJP of each line to be connected.

Line 1: LINK1-1 (SJP13) and LINK1-2 (SJP14)
Line 2: LINK2-1 (SJP15) and LINK2-2 (SJP16)
Line 3: LINK3-1 (SJP17) and LINK3-2 (SJP18)
Line 4: LINK4-1 (SJP19) and LINK4-2 (SJP20)

VS-900SC (figure of the inside of the front panel)

123

1234

VOICE LINE1

2 twisted pair cables

VS-900TI

1
2

CN1

3
4

1
2

CN2

3
4

1
2

CN3

3
4

Line 1

Line 2

Line 3

VS-900TI

LINK1-1 (SJP13)
LINK2-1 (SJP15)
LINK3-1 (SJP17)
LINK4-1 (SJP19)

LINK1-2 (SJP14)
LINK2-2 (SJP16)
LINK3-2 (SJP18)
LINK4-2 (SJP20)

1
2

CN4

3
4

CN6

Line 4

Data line
RS-485

A

B
GND
GND

Front view of
the circuit board

45

12.11.4. Connecting the VS-900SC to another VS-900SC unit

Connect individual Voice Lines 1 – 4 connectors to each other.
Pins No. 1 and 2 of each connector of Voice Lines 1 – 4 are for receiving ends, while pins No. 3 and 4 are for
transmitting ends. Use 2 twisted pair cables to make connections as shown below.

12.11.5. Connection to an optical/audio signal converter

Connect the optical/audio signal converter to each connector of Voice Lines 1 – 4.
Pins No. 1 and 2 of each connector of Voice Lines 1 – 4 are for receiving ends, while pins No. 3 and 4 are for
transmitting ends. Use 2 twisted pair cables to make connections according to the specifications of the
equipment to be connected.

VS-900SC (figure of the inside of the front panel)

123

12 34

VOICE LINE1

2 twisted pair cables

VS-900SC (figure of the inside of the front panel)

123

12 34

VOICE LINE1

46

12.12. VS-900MF Main Frame and PU-200 Power Transformer Connection

[Connection]

Connect as shown below using 2 parallel pair cables. Use cables with a sufficient current capacity and a
heavier gauge than AWG18. Two PU-200 units are required when using 3 or 4 VS-900RS cards.
Connect the backup power supply, if needed, to the VS-900MF's DC input as illustrated.

VS-900MF and power supply connection

VS-900MF

OUTPUT

20V AC 2.5A 20V AC 2.5A

from PU-200

AC-INAC-IN

12

from PU-200

AC-INAC-IN

34

DC24V IN

G1 FG

OUTPUT

20V AC 2.5A 20V AC 2.5A

24 V DC

Ferrite clamp*

PU-200

To AC mains

Mount the ferrite clamp (supplied with the VS-900MF) on the cable in a way

*

that the cable is looped one turn as illustrated. (This countermeasure is for
complying with the CE marking and FCC requirements.)

PU-200

To AC mains

Ferrite clamp
SFC-10

47

13. MAIN FRAME AND PC CONNECTION

13.1. Programming PC Connection

13.1.1. Direct connection by means of RS-232C

Using the RS-232C cable, connect the programming PC to the VS-900MF Main Frame as shown below.

Direct connection by means of RS-232C (Programming PC)

RS-232C straight cable

Front view

CN106

CN108

VS-900MF

DCD

1
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI

RS-232C straight cable

PC

1DCD
2RXD
3TXD
4DTR
5GND
6DSR
7RTS
8CTS
9RI

Programming PC

Main Frame VS-900MF

48

13.1.2. Connection via modem

Connect as shown below.

Connection via modem (Programming PC)

RS-232C cross cable

VS-900MF Modem

1 DCD
2 RXD
3 TXD
4 DTR

GND

5
6 DSR

GND

DSR

7 RTS

CTS

8

RI

9

CTS

RI

1DCD
2RXD
3TXD
4DTR
5
6
7RTS
8
9

CN106

CN108

Front view

Main Frame VS-900MF

RS-232C cross cable

Modem

49

13.2. Operation Log PC Connection

13.2.1. Direct connection by means of RS-232C

Using the RS-232C cable, connect the operating log PC to the VS-900MF as shown below.

Direct connection by means of RS-232C (Operation log PC)

RS-232C straight cable

VS-900MF PC

DCD

1
2 RXD
3 TXD
4 DTR

GND

5
6 DSR
7 RTS

CTS

8

RI

9

GND

CTS

RI

1DCD
2RXD
3TXD
4DTR
5
6DSR
7RTS
8
9

CN106

CN108

Front view

Main Frame VS-900MF

RS-232C straight cable

Operation log PC

50

13.2.2. Connection via modem

Connect as shown below.

Connection via modem (Operation log PC)

13.3. System Programming

Use the supplied PC software to perform such system programming as station number and function settings.
For its use and installation, refer to the "VS-900 Setup Software Instruction Manual."

RS-232C cross cable

VS-900MF Modem

1 DCD

RXD

2
3 TXD
4 DTR

GND

5
6 DSR

GND

DSR

7 RTS

CTS

8

RI

9

CTS

RI

1DCD
2RXD
3TXD
4DTR
5
6
7RTS
8
9

CN106

CN108

Modem

RS-232C cross cable

Front view

Main Frame VS-900MF

51

14. SPEECH AND FUNCTION TESTS

Using installed equipment, perform both speech and function tests after system programming completion.

14.1. Speech Test

(1) Calls from the substation

• Call the Master Station (telephone) from each substation to check to be sure that a conversation is possible.
Also, check to confirm that the master station (telephone) registered in system programming is correctly
called.

• Check to be sure that the calling substation number (name) is correctly displayed on the Master Station.

(2) Calls from the master station

• Call the substation and Master Station from each Master Station to check to be sure that a conversation is
possible.

• Check to confirm that the designated station is correctly called.

14.2. Function Test

Check each function registered in system programming for correct operation.
For each function's operation, refer to the "VS-900 OPERATING INSTRUCTIONS."

52

Power Source 5 V DC, 24 V DC (supplied from the main frame)
Current Consumption 50 mA (5 V DC), 200 mA (24 V DC)
Supply Power 24 V DC, 80 mA
Number of Lines 2 lines
Conversation Recording Output Audio signal: 0 dB*, unbalanced

Control signal: Open collector output, withstand voltage: 24 V DC,

control current: 20 mA
Other Master station connection monitoring function
Connection Terminal Main frame connection side: DIN connector (64-pin, male)

Line output: 4-pin x 2

Recording audio/control output: 4-pin x 2
Operating Temperature 0 to +40°C
Weight 350 g

Note: The design and specifications are subject to change without notice for improvement.

• Accessories

Power Source 20 V AC, 24 V DC
Current Consumption 7 A
Speech Path Configuration Time sharing switch (T1 stage)
Serial port Complies with the RS-232C Standard, D-sub connector (9-pin, female),

2 ports
Installation Method Rack- and wall-mountable

Other Real time clock for time control

Unit's presence/non-presence detection

System programming data maintenance

Power switch
Connection Terminal Bus connector: DIN connector (64-pin, female) x 9

PU-200 connection terminal: 4-pin x 2 (2 PU-200s are connectable.)

24 V DC input terminal: 4-pin (with grounding terminal)
Operating Temperature 0 to +40°C
Finish Pre-coated steel plate, black, 30% gloss
Dimensions 420 (w) x 443.7 (h) x 288.3 (d) mm (excluding the rack mounting bracket)
Weight 12.7 kg

15. SPECIFICATIONS

[VS-900MF Main Frame]

[VS-900MS Master Station Interface Card]

4-pin dedicated connector ............................... 4

Ferrite clamp SFC-10 ...................................... 2

Rack mounting bracket ................................... 2

Machine screw (M4 x 10) ................................ 6

Cable clip ...................................................... 20

4-pin dedicated connector ............................... 3

CR2032 battery ............................................... 1

Floppy disk (PC setting software) ................... 2

VS-900 operating instructions ......................... 1

VS-900 installation manual (this manual) ....... 1

VS-900 setup software manual ....................... 1

Rack mounting screw ...................................... 8

Rack mounting washer ................................... 8

Ferrite clamp SFC-10 ...................................... 1

• Accessories

* 0 dB = 1 V

Note: The design and specifications are subject to change without notice for improvement.

53

2-pin dedicated connector ............................... 2

4-pin dedicated connector ............................... 2

Ferrite clamp SFC-10 ...................................... 2

[VS-900AL Telephone Interface Card]

Power Source 5 V DC, 15 V DC, 24 V DC (supplied from the main frame)
Current Consumption 150 mA (5 V DC), 30 mA (15 V DC), 200 mA (24 V DC)
Supply Power 24 V DC, 80 mA
Number of Lines 2 lines
Conversation Recording Output

Audio signal: 0 dB*, unbalanced

Control signal: Open collector output, withstand voltage: 24 V DC,

control current: 20 mA
Selectable Signal Type DTMF signal
Monitoring Function Line loop detection function
Applicable Terminal Telephone sets to comply with FCC Part 68
Control Function Call signal transmission, audible signal transmission,

caller identification signal transmission (Caller ID Function)

Connection Terminal Main frame connection side: DIN connector (64-pin, male)

Line output: 2-pin x 2

Recording audio/control output: 4-pin x 2
Operating Temperature 0 to +40°C
Weight 400 g

3-pin dedicated connector ............................. 16

4-pin dedicated connector ............................... 1

[VS-900RS Substation Interface Card]

Power Source 5 V DC, 24 V DC (supplied from the main frame)
Current Consumption 200 mA (5 V DC), 600 mA (24 V DC)
Number of Lines Substation 16 lines
Number of Links 2 links (One of 2 links is also used as a Paging Link.)
Paging Output –20 dB*, 1 kΩ, unbalanced
Paging Input 25 V line, balanced
Conversation Method Half-duplex conversation by voice-operated switch or

simplex conversation by PTT switch
Audio Output Maximum 1 W per substation
Supply Power Maximum 15 V/20 mA per substation
Other Call button detection function and speech link control function
Connection Terminal Main frame connection side: DIN connector (64-pin, male)

Substation connection side: Two-core shielded cable (3-pin) x 16

Paging input/paging output: 4-pin
Operating Temperature 0 to +40°C
Weight 550 g

• Accessories

* 0 dB = 1 V

Note: The design and specifications are subject to change without notice for improvement.

• Accessories

* 0 dB = 1 V

Note: The design and specifications are subject to change without notice for improvement.

54

4-pin dedicated connector ............................... 4

[VS-900CO Outside Line Interface Card]

Power Source 5 V DC, 15 V DC, 24 V DC (supplied from the main frame)
Current Consumption 300 mA (5 V DC), 50 mA (15 V DC), 50 mA (24 V DC)
Number of Lines 2 lines
Conversation Recording Output Audio signal: 0 dB*, unbalanced

Control signal: Open collector output, withstand voltage: 24 V DC,

control current: 20 mA
Selectable Signal Type DTMF signal
Signal Format Loop start and Ground start compatible
Main Functions DTMF dial signal transmission function, DTMF signal detection function,

call signal (receiving) detection

Connection Terminal Main frame connection side: DIN connector (64-pin, male)

C/O line connection side: 4-pin x 2

Recording audio/control output: 4-pin x 2
Operating Temperature 0 to +40°C
Weight 380 g

4-pin dedicated connector ............................. 16

[VS-910RS Substation Interface Card]

Power Source 5 V DC, 24 V DC (supplied from the main frame)
Current Consumption 5 V DC: 200 mA

24 V DC: 600 mA (maximum during normal use),

1.5 A (maximum when 16 lines are simultaneously shorted)
Number of Lines Substation 16 lines
Number of Links 2 links (one of 2 links is also used as a Paging Link.)
Conversation Method Full-duplex conversation or Half-duplex conversation by

voice-operated switch
Audio Output Maximum 1 W per substation
Supply Power Maximum 20 V/30 mA per substation
Control System Two-way dial pulse width system (call, restoration, external control, etc.)

by current loop
Connection Terminal Main frame connection side: DIN connector (64-pin, male)

Substation connection side: 4-pin x 16
Connection Monitoring Function Line connection detection, line short circuit/open circuit/failure detection,

and communication irregularity detection
Operating Temperature 0 to +40°C
Weight 700 g

• Accessories

* 0 dB = 1 V

Note: The design and specifications are subject to change without notice for improvement.

• Accessories

* 0 dB = 1 V

Note: The design and specifications are subject to change without notice for improvement.

55

2-pin dedicated connector ............................... 2

4-pin dedicated connector ............................. 10

[VS-900AF Audio Function Card]

Power Source 5 V DC, 15 V DC, 24 V DC (supplied from the main frame)
Current Consumption 170 mA (5 V DC), 50 mA (15 V DC), 30 mA (24 V DC)
Paging Output Audio output: 1 output, 0 dB*, unbalanced

Control output: Open collector output, withstand voltage: 24 V DC,

control current: 20 mA

External Source Distribution Audio input: 1 input, 0 dB*, unbalanced

Control input: 4 inputs, no-voltage make contact,

open voltage: 24 V DC, short circuit current: 20 mA
Conference Link 1 link (up to 4-party conference)
Connection Terminal Main frame connection side: DIN connector (64-pin, male)

External interface side: Audio output 2-pin

Control output 2-pin x 16
Audio input 2-pin

Control input 2-pin x 4
Operating Temperature 0 to +40°C
Weight 230 g

4-pin dedicated connector ............................... 5

[VS-900TI Tie-Line Interface Card]

Power Source 5 V DC, 15 V DC (supplied from the main frame)
Current Consumption 100 mA (5 V DC), 50 mA (15 V DC)
Number of Audio Links 4 links
Connection Format Multidrop system
Transmitting System Data: RS-485

Voice: Base band

Input/Output Level Data: In compliance with RS-485 Standard

Voice: 0 dB*, balanced
Other Exchange number setting function
Connection Terminal Main frame connection side: DIN connector (64-pin, male)

Tie-line interface side: 4-pin x 4 (Voice line), 4-pin x 1 (Data line)
Operating Temperature 0 to +40°C
Weight 320 g

• Accessories

* 0 dB = 1 V

Note: The design and specifications are subject to change without notice for improvement.

• Accessories

* 0 dB = 0.775 V

Note: The design and specifications are subject to change without notice for improvement.

Printed in Japan
133-06-231-3G

Wood screw (5.1 x 38) .................................... 4

Tapping screw (4 x 12) ................................... 4

[YC-303 Main Frame Wall Mounting Bracket]

[VS-900SC Site Connector]

Finish Steel, black, electrodeposition paint
Dimensions 391.4 (w) x 440 (h) x 58 (d) mm
Weight 2.1 kg

Power Source 20 V AC (supplied from the power transformer unit, under 250 mA)

24 V DC (UL Listed Limited Power Source or Class 2 power supply,

rated 200 mA)

Name of Links 4 links
Input 0 dB*, 600 Ω, balanced (transformer)
Output 0 dB*, 600 Ω, balanced (transformer)
Installation Method Rack- and wall-mountable
Connection Terminal Voice line side: 4-pin x 3 (voice line)/1 link

PU-200 connection terminal: 2-pin

24 V DC input terminal: 4-pin
Operating Temperature 0 to +40°C
Finish Panel, Case: Pre-coated steel plate, black
Dimensions 420 (w) x 88.4 (h) x 238 (d) mm
Weight 3.55 kg

Rack-mounting bracket ................................... 2

Rack mounting screw 5 x 12 ........................... 4

Fiber washer M5 ............................................. 4

Wall-mounting bracket .................................... 2

Wood screw 4.1 x 20 ...................................... 4

Link plate ......................................................... 2

Screw 4 x 12 ................................................... 2

Tapping screw 3 x 12 ...................................... 8

Connector (4-pin) .......................................... 13

Connector (2-pin) ............................................ 1

Note: The design and specifications are subject to change without notice for improvement.

• Accessories

• Accessories

* 0 dB = 0.775 V

Note: The design and specifications are subject to change without notice for improvement.