Power Source : Supplied from an external 24 V DC/400 mA power supply or from an optional AD-246 AC adapter
Power Consumption : 10 W (rated output)
Wave Format : 44.1 kHz sampling frequency, 16-bit PCM (monaural)
Frequency Response :
- 20 Hz – 20 kHz ±3 dB (1 kHz)
- 50 Hz – 14 kHz ±3 dB (IT-450 mounted, 1 kHz)
Distortion : 1 % or less (1 kHz, rated output)
Recording System : USB data transfer or analog recording
Control Input :
- 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)
Control Output : Busy: Contact capacity: 30 V DC/0.5 A, removable terminal block (22 pins)
Input :
- 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)
Output :
- 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)
LED Indicator : POWER, USB, START/STOP 1-4
Maximum No. of Messages :
- 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.
Maximum Recording Time : 6 min
Message Delay Time : 0, 2 s or 4 s (selectable)
Playback Interval Time : ∞, 0, 5 s, 10 s, 30 s, 1 min, 5 min, 10 min, 30 min or 1 h (selectable)
Operating Temperature : 0 ℃ to +40 ℃
Operating Humidity : 90 %RH or less (no condensation)
Finish : Case: ABS resin, black
Dimensions : 210 (W) × 44.2 (H) × 181 (D) mm (excluding projection)
Weight : 730 g
Accessory : 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
Option :
- 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
