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Power Source
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Supplied from an external 24 V DC/400 mA power supply or
from an optional AD-246 AC adapter
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Power Consumption
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10 W (rated output)
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Wave Format
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44.1 kHz sampling frequency, 16-bit PCM (monaural)
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Frequency Response
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20 Hz - 20 kHz ±3 dB (1 kHz)
50 Hz - 14 kHz ±3 dB (IT-450 mounted, 1 kHz)
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Distortion
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1 % or less (1 kHz, rated output)
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Recording System
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USB data transfer or analog recording
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Control Input
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Play 1-4, stop: No-voltage make contact input, pulse make length: 200 ms,
open voltage: 30 V DC, short-circuit current: 10 mA
removable terminal block (22 pins)
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Control Output
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Busy: Contact capacity: 30 V DC/0.5 A, removable terminal block (22 pins)
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Input
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Input/Recording input: Mic: -60 dB(*1), 2.2 kΩ/ Line: -20 dB(*1), 10 kΩ,
(Mic/Line changeable), unbalanced, phone jack
Line input: 0 dB(*1), 10 kΩ, unbalanced, removable terminal block (22 pins)
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Output
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Line output: 0 dB(*1), 600 Ω, unbalanced, removable terminal block (22 pins)
Headphone output: 0 dB(*1), 100 Ω, unbalanced, phone jack
Speaker output: 3 W, 8 Ω, removable terminal block (22 pins)
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LED Indicator
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POWER, USB, START/STOP 1-4
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Maximum No. of Messages
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4
Pre-recorded audio data: Message 1, Westminster chime(*2)
Message 2, Ascending 4-tone chime(*2)
Message 3, Descending 4-tone chime(*2)
Message 4, None
Note: The above audio sources can be overwritten by using the supplied
software.
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Maximum Recording Time
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6 min
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Message Delay Time
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0, 2 s or 4 s (selectable)
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Playback Interval Time
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, 0, 5 s, 10 s, 30 s, 1 min, 5 min, 10 min, 30 min or 1 h (selectable)
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Operating Temperature
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0 ℃ to +40 ℃
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Operating Humidity
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90 %RH or less (no condensation)
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Finish
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Case: ABS resin, black
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Dimensions
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210 (W) × 44.2 (H) × 181 (D) mm (excluding projection)
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Weight
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730 g
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Accessory
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CD-ROM (USB data transfer software and sample chimes recorded)…1,
Unbalanced-phone plug…1, USB cable (1 m)…1,
Removable terminal plug (22 pins)…1, Rubber foot…4
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Option
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Rack mounting bracket: MB-WT3 (for rack mounting one EV-20R unit)
MB-WT4 (for rack mounting two EV-20R units)
AC adapter: AD-246
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