The EV-20R is a convenient addition to sites where the same message or music is repeatedly broadcast. Up to 4 types of music and messages (6 minutes total time) can be recorded and played back. The USB port facilitates recording by transferring the supplied sound sources from a PC to the unit. The unit's small built-in amplifier enables small-scale broadcasts through a simple speaker connection.
| 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 |
USB Data Transfer Software Operation Environment
| Personal Computer | Windows PC (equipped with the USB terminal) |
|---|---|
| Main Specifications | CPU: Pentium 4, 2 GHz or greater
Memory: 2 GB or more Free disk space: 10 MB or more (space for message storage excluded) Optical Drive: CD-ROM drive |
| OS | Windows 7 Professional (32/64-bit)
Windows 8.1 Pro (64-bit) Windows 10 Pro (64-bit) |