TOA Electronics EX-16 manual Stations

3.1.2Stations

Particular attention should be given to the following points during installation.

*A desk-type, wall-mounting-type or desk/wall-type should be chosen according to the user's need.

*If the all-call paging or talk-back function is adopted, precautions should be taken to ensure against feedback due to interference between the station (microphone) and the paging or talk-back speaker; that is, they should be installed facing different directions or separated as far as possible from each other.

*The "para-branching" operation or the connection of more than one station to one circuit is not possible.

*Adjust the volume switch and volume control on the station for com- fortable speaker output level or for avoiding troublesome acoustical conditions (e.g., reverberation or echo).

Stations are compact for easy installation almost anywhere. However, areas described below should be strictly avoided.

*An area where it will be exposed to fire, heat or direct sunlight.

*A dusty area where it will be exposed to metal dust or dirt.

*Near a storage place for chemicals, oil, etc.

*An area subject to vibration.

*Near high-voltage equipment.

*In a strong electric field.

*On the same circuit as a SCR type light dimmer.

3.1.3TKU-11

The talk-back unit is to be installed with an optional amplifier (10W max.) in the place where the talk-back function is desired.

The speaker is to be a Hi-Z trumpet speaker installed on the ceiling or wall. The optimum installation site for the speaker is approximately 2m from

speaking position. The talk-back unit should be placed by the optional

amplifier. The speaker should be installed as close to the talk-back unit

as possible.

Be sure to use shielded cable or twisted cable for the speaker wires to prevent interference caused by high-voltage cables, electromagnetic induction and high-frequency waves.

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