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
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)
