TOA Electronics EX-16 manual Wiring, General Information, Spacing

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3.4 Wiring

General Information

*Wiring should be done independent of public telephone lines.

*The wiring conduit is often installed underground or embedded in building structures such as walls and floors, so care should be taken to draw up a wiring plan that has ample reserve for future extension of the system and that can be adapted to future remodelling or expansion of the building it is housed in. Wiring systems must be planned with ample wires, a conduit and with provisions for additions to the system.

Spacing

Since the working voltage of this system is low and the current passing

through it is small, there is no major safety problem involved in the wiring.

However, since interference due to contact with other indoor wiring can

cause wire damage, leakage and other problems, spacing should be given

close consideration when the small-current wiring of this system is laid

close to other indoor wiring, particularly AC wiring.

The following chart lists spacing standards to be followed in respect to

typical causes of interference.

Cause of Interference

Minimum

Remarks

 

spacing

 

 

acceptable

 

 

without extra

 

 

protection

 

Heating pipe

6" (15 cm)

This minimum spacing

 

 

requirement should be

 

 

observed, since intercom

 

 

cable is vulnerable to heat.

Water pipe

Radio transmitting coaxial cables (CB and other).

Telephone wire.

Radio/TV antenna coaxial

cables & twin lead.

Ground cable.

Protected heating and cooling pipes

4" (10 cm)

12" (30 cm)

4" (10 cm)

More spacing is required

where there is a risk of induction.

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Contents TOA EX-16 Intercom System Features Specifications Further Details System Block Diagram Exchange FeaturesSpecifications Exchange SpecificationsFurther Details EX-16 Dimensions in mm Paging Receiving Switch Transmitting Circuit Control signal System Block Diagram Stations Talk-Back Unit TKU-11 AccessoriesStation Specifications Wall Mounting Panel YC-100Power Source Exchange Precautions for InstallationStations Cable Installation Core Diameter Versus Transmission DistanceDistance as Functions of Core Diameter Wiring General InformationSpacing Example PipingConnection between the station and the exchange Clipping Tool C YC-105 Page Connection of the Input/Output Terminal AC/DC Power Supply ConnectionRemote Control Output BGM InputAll-Call Paging Output Wiring Diagram Connection of the Talk-Back Unit Connection of the Speaker Station Speaker Volume Adjustment10.4 On/Off Control of BGM Connection with the ExchangeJumper for Speaker Station Selection Jumper for BGM On/Off How to Connect the Jumper WireFunction Selection Inspect Before Turning Power OnTesting Precedure Adjusting MethodPage Relationship Between Ambient Noise and Conversation Mode Trouble Shooting GuideFault in Exchange Symptom Fault in Specific Station OnlyFault in Cable Line and R-Line are shorted or mixed up KOBE, Japan