| 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 |
