TOA A-1812 AS User manual

TOA A-1812 AS User manual
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BOESCRIPTION
PA AMPLIFIER A—1812(AS)
Equipped with Priority function, Chime function, and 2 Zone selector switches, the A-1812 РА
Amplifier of 120 W
intercommunications, BGM, and broadcasting in schools, offices, and shops.
is designed to suit the following PA system applications: paging announcements,
[U's power remote
control function, provided especially for use in conjunction with the P—1812 (optional), will turn
ON or OFF the P-1812s power.
BSPECIFICATIONS
(x1) 0 dB =1V
Power Source
240 V AC, 50/60 Hz
24 V DC (M4 screw terminal)
Rated Output
120 W
Power/Current
Consumption
AC operation: 260 W (rated output), 110 W (EN60065),
320 mA or less (when power switch is OFF)
24 V DC operation: 7.0 A (rated output), 2.8 A (EN60065)
Frequency Response
50 Hz — 20 kHz (+3 dB)
Distortion
2 7% or less at 1 kHz, rated power
Input MIC 1: —60 dB(x1), 600 ©, electronically-balanced,
combined type of XLR—3-31 equivalent and phone jack, DIN socket (5 pins)
MIC 2 — 3: —60 dB(x1), 600 Q, electronically-balanced,
combined type of XLR—3—31 equivalent and phone jack
AUX 1 (MOH): —20 dB(x1), 10 kQ, unbalanced, RCA pin jack
AUX 2: —20 dB(x1), 10 kQ, unbalanced, RCA pin jack
AUX 3: —20 dB(x1), 10 kQ, unbalanced, combined type of XLR-3-31 and phone jack
TEL(*2): —20 dB(*1), 10 kQ, electronically-balanced, M3 screw terminal
EMERGENCY: O dB(x1), 600 Q, unbalanced, M3 screw terminal
Output REC: 0 dB(x1), 600 Q, unbalanced, RCA pin jack
LINE 1, 2 (x3): 0 dB(x1), 600 Q, unbalanced, RCA pin jack
MOH: O dB(x1), 600 (Q, transformer balanced, M3 screw terminal
SPEAKER SELECTOR: 2 zone, high impedance (100 V line/83 Q), individual selector switch,
M4 screw terminal
DIRECT SPEAKER OUT: High impedance (100 V line/83 (2), M4 screw terminal
Low impedance (4 — 16 Q), M4 screw terminal
(Both Low and High impedance terminals cannot be used at the same time.)
Phantom Power
ON or OFF for each MIC! — $3 with switch setting (+17 V DC)
S/N Ratio
(Band Pass
: 20 Hz — 20 kHz)
100 dB or more (Master volume: min)
/6 dB or more (Master volume: max)
60 dB or more (MIC 1 — MIC 3)
76 dB or more (AUX 1 — AUX 5)
90 dB or more (TEL)
96 dB or more (EMERGENCY)
Tone Control
Bass: +10 dB at 100 Hz, Treble: £10 dB at 10 kHz
Control Input
TEL: No-voltage make contact input, open voltage: 24 V DC, short-circuit: 5 mA or less,
M3 screw terminal
EMERGENCY(*4): No-voltage make contact input, open voltage: 24 V DC,
short—circuit: 10 mA or less, M3 screw terminal
Control Output
Power remote: Open collector output, withstand voltage: 35 V DC,
control current: 50 mA or less, M3 screw terminal
Chime 1-tone, 2—tone, or ascending 4—tone chime, or None selectable with switch setting,
activated at MIC 1's DIN or CONTROL TEL terminal.
Indicator 5 point LED output level meter, Power indicator LED, Zone indicator LED, Emergency LED,
TEL LED
Priority EMERGENCY: Overrides other inputs
TEL: Overrides other inputs except EMERGENCY, ON/OFF selectable with switch setting
MIC 1: Overrides other inputs except EMERGENCY 8 TEL”,
ON/OFF selectable with switch setting
Operating Temperature
—10 °C to +40 °C
Finish
Panel: ABS resin, black, hairline
Case: Steel plate, black
Dimensions 4720 (W) X 107.7 (H) X 367 (D) mm
Weight 12.6 kg
Accessory Power cord +1, Terminal block cover --1, Terminal block cover mounting screw 2
Option Rack mounting bracket: MB—25B
Volume control cover: YA—920
[Input transformer: I11-453A
[Note] Distance between barriers on the above screw terminals: M3 ~~ 7 mm, M4 -—- 9 mm
(x2) Can be transformer—balanced with the addition of optional 1T-453A input transformer.
(*3) LINE 1 and LINE 2 outputs can be interlocked with ZONE 1 and ZONE 2 speaker selectors, respectively.
(This function needs internal modification.)
(x4) Operation when activated can be selected from the following: Turning ON the unit's power (factory—preset) or OFF.
(The OFF function needs internal modification.)
TOA Corporation
DWG No: GA—032B1-3
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TOA PA AMPLIFIER A—1812(AS)
ENS
ES
BAPPEARANCE
240V 0.64 50/60Hz PA AMPLICIER
OPT RAD 10
oo TOA Corporation
INPUT =
"Sh ie” me 3 4 TONE | OFF | OFF
2 TONE | ON OFF
1 TONE | OFF ON
NONE ON ON
| O J REMOTE OUT CONTROL MOH OUT EMERGENCY TEL PACING | @ ) CHIME MUTE BY TEL SIG CHINE TNL
EMER- Jal [o MUTE B MIC 1 sic SW T SWS
|
TOTAL IMPEDANCE 83Q
DIRECT ZONE2 ZONE1___
FAM T— —T —%-T50 MOD 10D
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Rear View
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Ca 1 MASTER EMERGENCY
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Front View
18.5 326.5
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Side View
UNIT:mm SCALE: 1/5
03E TOA Corporation DWG No: GA-032C1-3
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