Toa EX-610, Руководство по установке

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9. Connection and Adjustment of Equipment
9-1 Connection of the Speaker Station (Simplified Paging)
In the EXES-6000, instead of using a station, a speaker for one-way
conversation can be installed using a jumper in the LM-62B.
This is possible at each station position on the LM-62B.
1. Cutting off the jumper wires of the LM units.
<For the LM-62A unit>
Cut off the jumper wires (JP101-
JP801) corresponding to the line con-
nected for "Speaker station" function.
<For the LM-62B/LM-62C/LM-65/
LM-65C units>
Cut off the jumper wires (JP104-
JP804) corresponding to the line con-
nected for "Speaker station" function.
Side view of the LM-62A unit with parts
mounted
Side view of the LM-62B/LM-65 units with
parts mounted
Side view of the LM-62C/LM-65C units
with parts mounted
2. Speaker Volume Adjustment
1. Speakers with an impedance of 600 ohms or more may be
used without a transformer.
If it is desired to use lower impedance speakers, a transformer
should be used to assure proper impedance matching.
2. Volume may be controlled only when:
(a) a matching transformer is used.
low volume
Non-polar capacitor
To exchange
high volume
(b) a resistor is connected.
Non-polar capacitor
approx. 1W
To exchange
The Rs value should be decided in accordance with the speaker
impedance so that the volume is on a suitable level.
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