Iwatsu ADIX VS, Technical Manual

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ADIX-VS Technical Manual Section 3 – ADIX-VS Installation
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To connect the zone speakers:
1. Connect the P.A. zone speakers(1 through 2) to the ZONE1 through ZONE2 pins on the
punchdown block.
2. Figure 43 illustrates the relay connections for P.A. system including the page amplifier,
BGM amplifier,and zone speakers.
Two-Way Paging
The ADIX-VS System can be connected to two-way talk-back paging amplifiers.Either a two-wire or
four-wire talk-back amplifier can be used. The two-wire connection reduces the P.A. input sensitivity
because of the hybrid circuit inserted in the input.
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Setup and Programming:
1. Set the PAGE AMP strapping jack on the VS-MISC card to either the ON(2-WIRES) or
OFF(4-WIRES) position.
Note: When the VS-MISC card is set to 2-WIRES, the TA IN pins on the punchdown block become a
two-way path. When the VS-MISC card is set to 4-WIRES, paging voice is sent out throuh the PAGE
OUT pins on the punchdown block while take-back voice is received through the TA IN pins.
2. Do one of the following:
„ If the PAGE AMP strapping jack on the VS-MISC card is set to 2-WIRES, connect the
audio input/output terminal of the paging amplifier to pins 3 and 4,TA IN, located on
the punchdown block.
„ If the PAGE AMP strapping jack on the VS-MISC card is set to 4-WIRES, connect the
output terminal to pins 1 and 2, PAGE OUT and the input terminal to pins 3 and 4,TA IN
located on the punchdown block.
3. Connect the page amplifier power control relay (SLAVE) to the PAGE C) and
(-) pins on the punchdown block as illustrated in Figure 45.(Not required in all instalations.)
FIGURE 27. TWO-WAY PAGING WIRING
CN SB
2W 4W
VS-MISC
SW2B
SW2C
ON
OFF
ON
OFF
SW2A
CN2
1
1
2 Page Out (+)
Page Out (-)
3
4
Page In (+)
Page In (-)
5
6 BGM In (+)
BGM In (-)
Punchdown Block
3
4
2
Page
Amplifier
Input