
Central control unit 
■Part names
CONTACT INPUT terminals
CONTACT OUTPUT terminals
PA (Paging) OUTPUT terminals
CHIME INPUT terminals
External chime source volume 1 and 2
Adjust the volume of the input source (for chime) connected to the
CHIME INPUT B1 and B2 terminals respectively.
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 POWER switch
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Room sub control unit  | 
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MASTER STATION ports  | 
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  | VIDEO OUTPUT port 1  | |||||||||||||||||||||||||||||||||||||||
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  | and port 2  | |||||||
VIDEO/AUDIO DOOR/SUB | 
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STATION ports  | 
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  | IP control unit   | ||||||||||||||||||||||
Turns the power ON ( ) or OFF (
).
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 POWER LED (green)
Lights up when the power is ON.
POWER terminals
STATUS LED (green)
Blinks when this unit is initialized or an error*1 occurs.
The LED will light up when this unit returns to the normal state.
*1: Communication error in a unit connected to this unit, or between this unit and a unit connected to it, etc.
Link/ACT LED (green)
Operates when this unit is connected to LAN.
LAN port
Connect a PC to this port for making the system settings. (Refer to the SETTING MANUAL for details about the settings.)
NOTE:
The illustration of the unit may differ from the actual one.
■Specifications
Central control unit (IS-CCU) 
Power source  | 48V DC (supplied from the power supply unit)  | |
Current consumption  | Max. 800mA  | |
Ambient temperature  | 0 - 40°C (+32°F - +104°F)  | |
Talk channels・Video  | Local system: 2 talk & 2 video channels,  | |
channels  | 1 chime  | |
Master station(s)  | Max. 4  | |
Video door station(s)  | 
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Audio door station(s)  | Max. 4  | |
Room sub station(s)  | 
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Max. 2  | ||
Room sub control unit  | Max. 4  | |
IP control unit  | Max. 1  | |
Video output  | NTSC  | |
BNC (Video channel 1,2)  | ||
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LAN | Ethernet (10   | |
Mounting  | ||
Material  | Steel plate  | |
Color  | Black  | 
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