Operation Manual
43
GETTING STARTED USING THE SYSTEM APPENDIX
SETTING AND ADJUSTMENT
Room sub station (IS-RS)
Power source
Supplied from the central control unit, add-on 
control unit or room sub control unit
Communication
Handset: Simultaneous communication
Hands-free: Auto-voice actuation 
Ambient temperature 0 - 40°C (+32°F - +104°F)
Mounting
Surface-wall mount (directly to wall or 
electrical box)
Electrical box 1-gang box
Material Flame resisting ABS resin
Color Black
Weight Approx. 530g (1.17 lbs.) 
Power supply unit (IS-PU-UL, IS-PU-S)
Power source AC 100 - 240V, 50/60Hz.
Power consumption 120W
Ambient temperature 0 - 40°C (+32°F - +104°F)
(Secondary) Output 
voltage
DC 48V
(Secondary) Output 
current
2.1A
Mounting
Wall-mount (with IS-RACK) or rack-mount 
(with IS-RACK)
Material Steel plate
Color Black
Weight Approx.1.5kg (3.31 lbs.)










